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Open Access 01.12.2024 | Research

Impact of patient education by nurse case managers on decision making for out-of-pocket anti-osteoporotic pharmaceutical therapy: a single-center retrospective study

verfasst von: Ya-Lian Deng, Hsu-Tung Lee, Shih-Yi Lin, Tan-Hsiu Liao, Chia-Tien Hsu

Erschienen in: BMC Nursing | Ausgabe 1/2024

Abstract

Background

Osteoporosis is a common condition that increases the risk of fracture and mortality. In Taiwan, clinical guidelines recommend pharmaceutical therapy for patients with a T-score of ≤ − 2.5; however, Taiwan’s National Health Insurance (NHI) only covers these medications for those with a history of fragility fractures. This gap in coverage necessitates a discussion of out-of-pocket treatment options. To address this, we provided an integrated care program with patient education and shared decision-making by nurse case managers specializing in osteoporosis. We evaluated whether education by nurse case managers influences patients with a T-score ≤ − 2.5, who are not covered by the NHI, to choose out-of-pocket pharmaceutical therapy.

Methods

We retrospectively reviewed medical records of patients who underwent bone density scanning at our hospital between January 2014 and December 2021. We identified 4,462 patients with a T-score of ≤ − 2.5 who were ineligible for NHI-covered anti-osteoporotic therapy and analyzed trends in out-of-pocket medication use. Since the integrated care program began in 2018, we evaluated whether education by nurse case managers between 2018 and 2021 influenced patients’ decisions to pay out-of-pocket for therapy. After the implementation of the integrated care program, we identified 2,910 patients with a T-score ≤ -2.5 who were ineligible for NHI-covered anti-osteoporotic therapy. Of these, 640 opted for out-of-pocket treatment, while 2,270 chose conservative care. After a 1:1 propensity score match based on age and sex, logistic regression was used to analyze the impact of nurse case manager education on these decisions.

Results

Between 2014 and 2021, 888 of the 4,462 patients chose out-of-pocket pharmaceutical therapy. Before the implementation of the integrated care program and patient education by nurse case managers (2014–2017), 16% of the patients opted to pay out-of-pocket for anti-osteoporotic therapy. After the program was implemented (2018–2021), the rate increased significantly to 22% (P < 0.001). A multivariate logistic regression model showed that a history of osteoarthritis (adjusted odds ratio = 1.576; P = 0.009) and education provided by the nurse case managers (adjusted odds ratio = 5.044; P < 0.001) were significantly associated with choosing out-of-pocket therapy.

Conclusions

Education from nurse case managers significantly increased the likelihood of patients choosing out-of-pocket anti-osteoporotic therapy in our hospital, thereby bridging the gap between clinical guidelines and NHI reimbursement criteria.
Hinweise

Supplementary Information

The online version contains supplementary material available at https://​doi.​org/​10.​1186/​s12912-024-02467-x.

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Background

Osteoporosis is a prevalent condition worldwide, leading to higher fracture risk, reduced quality of life, and increased mortality [1]. In Taiwan, the prevalence of osteoporosis has increased rapidly owing to the aging population. According to the National Health Insurance (NHI) data, the rate among individuals aged ≥ 50 years increased from 17.4% in 2001 to 25.0% in 2011 [2]. This condition significantly increases the risk of fractures, particularly the spine and hips. Taiwan ranks ninth globally and has the highest rate of hip fractures in the Asia-Pacific region [3]. In 1999, the one-year mortality rate of older individuals with hip fractures was approximately 15% in women (compared with a standard mortality rate of 13%) and 22% in men (compared with a standard mortality rate of 14%). By 2009, these rates had decreased to 11.2% for women and 18% for men. Additionally, the standard mortality rate had declined to 2.8% for women and 3.6% for men by 2010. Despite these improvements, hip fractures continued to have a significant impact on mortality in 2010 [4]. According to several nationwide analyses in Taiwan [510], treating osteoporosis after fractures could lower the overall mortality rates.
Dual-energy X-ray absorptiometry (DXA) is widely recognized as the gold standard for measuring bone mineral density (BMD) [11]. In Taiwan, clinical guidelines [12] recommend that patients with a T-score of ≤ − 2.5 (indicative of osteoporosis) receive osteoporosis treatment along with education on lifestyle modification, fracture prevention, and fall prevention. Osteoporosis treatment includes both non-pharmacological management and anti-osteoporotic pharmaceutical therapies. The goal of anti-osteoporotic pharmaceutical therapy is to prevent fractures by increasing bone strength and improving bone quality [13]. Treatment decisions should be individualized, considering patient preferences, affordability, comorbidities, quality of life, and life expectancy [14]. However, Taiwan’s NHI does not cover anti-osteoporotic pharmaceutical therapy for these patients, unless they have had a fragility fracture [12]. This discrepancy requires discussions about out-of-pocket treatment options in clinical settings, especially for patients at high risk of fractures.
Several studies have highlighted the importance of nurse case managers in improving osteoporosis care and enhancing the patients’ experiences [1522]. However, most of these studies focused on patients with a history of fragility fractures and did not address patients with osteoporosis who did not experience fragility fractures. To provide comprehensive osteoporosis care, our hospital established an Osteoporosis Prevention and Treatment Center in 2017. Initially, the primary goal of the center was to provide fracture liaison services (FLS) to patients with a history of fragility fractures [23, 24]. However, we later expanded our services to include patients with osteoporosis who have not yet experienced fractures but are still at high risk. Primary preventive care was offered to these patients. These include fracture risk assessments, fall prevention strategies, shared decision-making (SDM) for prevention and treatment options, and ongoing medication management. Osteoporosis-qualified nurse case managers play crucial roles in patient education, providing cost information, and managing follow-ups. In 2018, our Osteoporosis Prevention and Treatment Center officially implemented this integrated care program. This study aimed to evaluate whether such education by nurse case managers influences patients with a T-score ≤ − 2.5, who are ineligible for NHI coverage, in choosing out-of-pocket anti-osteoporotic pharmaceutical therapy.

Methods

Study design and enrolled participants

This study was a single-center, retrospective analysis conducted at the Taichung Veterans General Hospital in Taiwan. Inclusion criteria of this study encompassed all patients who underwent BMD examinations at our hospital with a T-score of ≤ − 2.5, but who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy. Figure 1 shows the flow diagram of our study. To study the trend of out-of-pocket anti-osteoporotic pharmaceutical therapy over time (Fig. 1a), we retrospectively reviewed the electronic medical records of patients who underwent BMD examinations at our hospital between January 1, 2014 and December 31, 2021. We identified 4,462 patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy and analyzed trends in the use of out-of-pocket medications.
Since the Osteoporosis Prevention and Treatment Center officially started offering an integrated care program in 2018, which included patient education and SDM facilitated by osteoporosis-qualified nurse case managers, we also examined whether patient education provided by nurse case managers between 2018 and 2021 influenced patients’ decisions to choose out-of-pocket anti-osteoporotic pharmaceutical therapy (Fig. 1b). During this period, there were 5,814 patients with a T-score of ≤ − 2.5. Based on the data reported by our hospital to the Taiwan NHI Administration, we identified 2,904 patients with a T-score of ≤ − 2.5 who received NHI-covered anti-osteoporotic pharmaceutical therapy. After excluding these 2,904 patients, we identified an additional 2,910 patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy. Among these 2,910 patients, 640 received out-of-pocket anti-osteoporotic pharmaceutical therapy, while 2,270 opted for conservative treatment. Demographic data, comorbidities, laboratory tests, results of BMD scans, and FRAX® (Fracture Risk Assessment Tool for the ten-year probability of fracture) [2528] scores were then traced retrospectively from the electronic health records. After a 1:1 propensity score match based on age and sex, logistic regression was used to analyze the impact of nurse case manager education on these decisions. This study was approved by the Institutional Review Board of Taichung Veterans General Hospital (TCVGH-IRB No. CE22167A; Date of Approval: April 18, 2022), following the relevant institutional guidelines and regulations. Informed consent from the patients was waived because the study involved a retrospective analysis of the data.

Integrated care program and patient education by nurse case managers

Initially, the primary goal of our Osteoporosis Prevention and Treatment Center was to provide FLS to patients with a history of fragility fractures. Fracture liaison services is a coordinator-based, multidisciplinary approach to prevent secondary fractures, involving a team of specialists, including orthopedic surgeons, neurosurgeons, rheumatologists, neurologists, pulmonologists, endocrinologists, rehabilitation physicians, nephrologists, gynecologists, geriatricians, family medicine physicians, breast surgeons, urologists, and traditional medicine physicians, as well as osteoporosis-qualified nurse case managers, pharmacists, rehabilitation therapists, and dietitians in our hospital. We later expanded our services to include patients with osteoporosis who have not yet experienced fractures, but are still at high risk. Primary preventive care was offered to these patients. These include fracture risk assessments, fall prevention strategies, SDM for prevention and treatment options, and ongoing medication management. By integrating these services with the FLS, we provided comprehensive care through our osteoporosis integrated care program.
We incorporated a computerized physician order entry system [29] to support the integrated care program by streamlining referrals and tests. This module includes orders for laboratory tests, DXA examinations, and referral forms for patient education provided by the nurse case managers. Laboratory tests included the assessment of renal function, calcium, phosphorus, albumin, alkaline phosphatase, intact parathyroid hormone, and other endocrine profiles associated with secondary osteoporosis. In outpatient clinics, physicians provide initial education to patients and discuss the treatment options. They then issued a referral form to the osteoporosis-qualified nurse case manager, who would further educate the patient about osteoporosis, including an overview of the disease, fracture risk assessment, fall prevention, and prevention and treatment options through SDM.
The patient education provided by nurse case managers takes place after each doctor’s visit. As a result, follow-up education sessions are typically conducted every three to six months. During these sessions, nurse case managers monitor patients’ adherence to their prescribed medications. The follow-up education sessions ensure that patients fully understand the information from previous sessions, with a particular focus on fall and fracture prevention. Additionally, important details about medication use are reinforced. For instance, after administering bisphosphonates or denosumab, patients should be monitored for symptoms of osteonecrosis of the jaw. Patients receiving denosumab should also be observed for symptoms of hypocalcemia, especially those with impaired kidney function. Figure 2 shows the number of patients who received education from nurse case managers between 2018 and 2021. During this period, a total of 3,057 patients participated in the education program. Of these, 2,628 patients were undergoing NHI-covered anti-osteoporotic pharmaceutical therapy. Additionally, 429 patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered therapy also received education from nurse case managers. Among these 429 patients, 205 later opted for out-of-pocket pharmaceutical therapy.
We used a patient decision aid (PDA) to facilitate SDM [30, 31] (the English translation of the PDA is presented in Supplementary Material, Additional File 1). The PDA was developed according to the International Patient Decision Aid Standards [3234]. The development process involved several key steps, including a user needs assessment, structural planning, retrieving, integrating, and translating data based on evidence-based medicine, drafting the initial PDA, conducting preliminary testing (alpha testing), and engaging in iterative discussions and revisions with patients and experts. This was followed by real-world testing (beta testing), which ultimately led to the creation of the final version of the PDA. The nurse case managers also provided information on out-of-pocket costs. We also established an osteoporosis case management information system that nurse case managers can use to track patients’ follow-up appointments. The system identifies patients who have missed scheduled appointments to help ensure adherence to prescribed medications. Additionally, case managers provide telephone counseling to improve patient compliance. When a patient misses a follow-up, our nurse case managers will contact them to understand the reason for their absence, assist with rescheduling the appointment, and educate them on the importance of medication adherence for treatment. Nurse case managers also handle incoming phone inquiries from patients or their families, but they only proactively reach out to patients when the system flags a missed appointment for clinic follow-up and medication collection. In 2018, the Osteoporosis Prevention and Treatment Center officially implemented this integrated care program.

Outcome analysis and variable definition

Primary objective of this study was to evaluate whether patient education by nurse case managers influences patients with a T-score ≤ − 2.5, who are ineligible for NHI coverage, to choose out-of-pocket anti-osteoporotic pharmaceutical therapy. Bone mineral density measurements of the lumbar spine (L1–L4) and bilateral femoral necks were obtained through DXA using the Lunar Prodigy (General Electric, Fairfield, CT, USA), with results reported in g/cm2. The least significant change was ± 0.010 g/cm2 for the lumbar spine (L1–L4) and ± 0.012 g/cm2 for the femoral neck. T-scores were computed using the manufacturer’s reference data. Estimated glomerular filtration rate (eGFR) was calculated using the 2021 Chronic Kidney Disease Epidemiology Collaboration creatinine Eqs. [35, 36]. The following formula was used to estimate corrected calcium levels in the serum [37]: corrected calcium (mg/dL) = serum calcium (mg/dL) + 0.8 × (4  serum albumin [g/dL]). Fracture Risk Assessment Tool (FRAX®) is promoted by the International Osteoporosis Foundation and World Health Organization to help patients and medical staff estimate the 10-year risk of major osteoporotic fractures and hip fractures. This estimation is based on clinical data and medical history with or without BMD measurements. The 10-year fracture risk is calculated using the Taiwan-specific FRAX® calculator in our study [28, 38, 39]. Patients were considered at moderate risk if the probability of a major osteoporotic fracture was > 10%, or a hip fracture was > 1.5%. High risk is defined as a major osteoporotic fracture probability of > 20% or a hip fracture probability of > 3% [25, 40].

Statistical analysis

Continuous variables with normal distribution are shown as mean ± standard deviation, whereas continuous variables with non-normal distribution are presented as median (interquartile range). Categorical variables are reported as numbers (percentages). Normality was assessed using the Kolmogorov–Smirnov test. Tests for statistical significance were conducted using the Mann–Whitney U test for continuous variables and the chi-square test or Fisher’s exact test for categorical variables. We used a logistic regression model to analyze factors associated with a patient’s decision regarding out-of-pocket pharmaceutical therapy. Variables in the univariate analysis a P < 0.05 were considered potential confounders in the multivariate models. Multivariate analysis was performed to adjust for the confounders selected in the univariate analysis. The level of significance was set at a two-tailed value of P < 0.05. Statistical analyses were performed using MedCalc for Windows, version 22.303 (MedCalc Software; Ostend, Belgium). GraphPad Prism 9.5.0 software (GraphPad Software, La Jolla, CA, USA) was used to create bar and line graphs.

Results

Trend of out-of-pocket anti-osteoporotic pharmaceutical therapy

A total of 27,445 bone mineral density scans were performed at our hospital between January 1, 2014 and December 31, 2021. Of these, 9,503 patients were diagnosed with osteoporosis based on a T-score of ≤ − 2.5. Among patients with a T-score of ≤ − 2.5, 5,041 also had fragility fractures and subsequently received NHI-covered anti-osteoporotic pharmaceutical therapy. However, there were 4,462 patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy. Of these 4,462 patients, 888 chose to pay out-of-pocket for anti-osteoporotic pharmaceutical therapy, whereas 3,574 opted for conservative treatment.
Figure 3 shows the number and percentage of patients who chose to pay out-of-pocket for anti-osteoporotic pharmaceutical therapy among the patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy. Before the implementation of the integrated care program and patient education by nurse case managers (2014–2017), 16% of the patients chose to pay out-of-pocket for anti-osteoporotic pharmaceutical therapy. After the implementation of the integrated care program and patient education by nurse case managers (2018–2021), this rate increased significantly to 22% (from 16 to 22%; 248 of 1,552 vs. 640 of 2,910; P < 0.001). The number and rate of patients who chose to pay out-of-pocket for anti-osteoporotic pharmaceutical therapy among the patients with a T-score of ≤ − 2.5 who were not eligible for NHI-covered anti-osteoporotic pharmaceutical therapy was lower in 2021 than that before it, likely because of the impact of the coronavirus disease outbreak in Taiwan.
Figure 4 shows the number of patients who chose different types of out-of-pocket anti-osteoporotic medication over the years. Denosumab is the most commonly used out-of-pocket anti-osteoporotic medication. Selective estrogen receptor modulators are the second most popular choice, followed by bisphosphonates.

Factors influencing a patient’s decision on out-of-pocket pharmaceutical therapy

Table 1 compares the clinical characteristics of the out-of-pocket pharmaceutical therapy group (n = 640) and the conservative treatment group (n = 640) after a 1:1 propensity score match based on age and sex. There were no significant differences between the two groups in terms of age, sex, weight, body mass index, history of rheumatoid arthritis, history of hypertension, history of cerebrovascular accident, eGFR, serum creatinine, serum albumin, white blood cell count, hemoglobin, corrected calcium, phosphorus, intact parathyroid hormone, left femoral neck BMD, right femoral neck BMD, left femoral neck T-score, or right femoral neck T-score. However, the out-of-pocket pharmaceutical therapy group had a significantly greater height (155.2 vs. 154.5 cm; P = 0.020), higher proportion of patients with a history of osteoarthritis (59.8% vs. 51.6%; P = 0.003), lower proportion of patients with a history of diabetes mellitus (17.8% vs. 22.5%; P = 0.037), lower alkaline phosphatase levels (91.0 vs. 93.0 mg/dL; P < 0.001), lower lumbar spine BMD (0.845 vs. 0.867 g/cm²; P < 0.001), lower lumbar spine T-scores ( 2.7 vs. 2.5; P < 0.001), higher ten-year major osteoporotic fracture risk (16.2% vs. 15.3%; P = 0.035), and higher ten-year hip fracture risk (6.7% vs. 6.3%; P = 0.028). Additionally, a significantly higher proportion of patients in the out-of-pocket pharmaceutical therapy group received patient education from nurse case managers than those in the conservative treatment group (32.0% vs. 8.1%; P < 0.001).
Table 1
Comparison of clinical characteristics between out-of-pocket pharmaceutical therapy and conservative treatment
Clinical characteristics
Conservative treatment
(n = 640)
Out-of-pocket treatment
(n = 640)
P value
Age (years)
66.0
(59.0–74.0)
65.0
(59.0–71.0)
0.183
 
Male sex
50
(7.8%)
50
(7.8%)
1.000
 
Height (cm)
154.5
(150.4–158.3)
155.2
(151.7–159.9)
0.020*
 
Weight (kg)
54.1
(48.3–61.1)
55.0
(49.9–60.9)
0.179
 
Body mass index(kg/m2)
22.8
(20.5–25.4)
22.8
(20.5–25.2)
0.925
 
History of OA
330
(51.6%)
383
(59.8%)
0.003**
 
History of RA
75
(11.7%)
72
(11.3%)
0.793
 
History of DM
144
(22.5%)
114
(17.8%)
0.037*
 
History of HTN
173
(27.0%)
172
(26.9%)
0.950
 
History of CVA
63
(9.8%)
49
(7.7%)
0.166
 
eGFR (mL/min/1.73 m2)
85.8
(66.5–97.5)
88.5
(72.1–97.5)
0.103
 
Serum creatinine (mg/dL)
0.77
(0.67–0.93)
0.75
(0.66–0.89)
0.086
 
Serum albumin (g/dL)
4.3
(4.0–4.5)
4.3
(4.1–4.5)
0.329
 
ALK-p (mg/dL)
93.0
(76.0–114.0)
91.0
(71.0–118.0)
< 0.001**
 
Corrected calcium (mg/dL)
9.10
(8.90–9.48)
9.20
(8.90–9.50)
0.579
 
Phosphorus (mg/dL)
3.6
(3.3–4.1)
3.6
(3.3–3.9)
0.356
 
i-PTH (pg/mL)
60.4
(42.0–99.8)
59.4
(40.5–87.9)
0.334
 
WBC count (109/L)
6210
(4810–7870)
5980
(4910–7700)
0.481
 
Hemoglobin (g/dL)
12.7
(11.3–13.6)
12.7
(11.4–13.7)
0.534
 
Lumbar spine BMD (g/cm2)
0.867
(0.803–0.958)
0.845
(0.778–917)
< 0.001**
 
Left femoral neck BMD (g/cm2)
0.679
(0.632–0.716)
0.671
(0.619–0.712)
0.089
 
Right femoral neck BMD (g/cm2)
0.670
(0.630–0.709)
0.671
(0.619–0.713)
0.721
 
Lumbar spine T-score
2.5
( 3.1 – 1.8)
2.7
( 3.3 – 2.1)
< 0.001**
 
Left femoral neck T-score
2.6
( 2.9 – 2.3)
2.6
( 3.0 – 2.3)
0.081
 
Right femoral neck T-score
2.6
( 2.9 – 2.4)
2.6
( 3.0 – 2.3)
0.616
 
FRAX® (MOF)
15.3
(11.0–20.6)
16.2
(11.4–22.4)
0.035*
 
FRAX® (hip)
6.3
(3.7–9.4)
6.7
(4.1–10.6)
0.028*
 
PE by Nurse Case Manager
52
(8.1%)
205
(32.0%)
< 0.001**
 
For continuous variables, the independent-samples t-test was used if the data were normally distributed, and if not, the Mann–Whitney U test was used. Categorical data were compared using the chi-square test. Values are expressed as number (percentage) or median (interquartile range). *p < 0.05, **p < 0.01. OA, osteoarthritis; RA, rheumatoid arthritis; DM, diabetes mellitus; HTN, hypertension; CVA, cerebrovascular accident; eGFR, estimated glomerular filtration rate calculated using the 2021 Chronic Kidney Disease Epidemiology Collaboration creatinine equation; ALK-p, alkaline phosphatase; i-PTH, intact parathyroid hormone; WBC, white blood cell; BMD, bone mineral density; MOF, major osteoporotic fracture; PE, patient education
Table 2 summarizes the results of the logistic regression analysis of the patients’ decision to opt for out-of-pocket pharmaceutical therapy. In the univariate regression, a high height (crude odds ratio [cOR] = 1.02; P = 0.014), history of osteoarthritis (cOR = 1.40; P = 0.003), high eGFR (cOR = 1.01; P = 0.049), higher serum albumin levels (cOR = 1.87; P < 0.001), lumbar spine T-score ≤ − 2.5 (cOR = 1.08; P < 0.001), high risk of major osteoporotic fracture (cOR = 1.28; P = 0.049), and patient education by nurse case managers (cOR = 5.33; P < 0.001) were associated with patient’s decision to choose out-of-pocket pharmaceutical therapy. Conversely, patients with a history of diabetes mellitus (cOR = 0.75; P = 0.037), serum albumin levels < 3.5 (cOR = 0.38; P = 0.002), or higher lumbar spine BMD (cOR = 0.19; P < 0.001) were less likely to choose out-of-pocket anti-osteoporotic pharmaceutical therapy. The multivariate regression model indicated that a history of osteoarthritis (adjusted odds ratio [aOR] = 1.53; P = 0.013) and patient education by nurse case managers (aOR = 5.13; P < 0.001) were significantly associated with patients’ decision to opt for out-of-pocket pharmaceutical therapy.
Table 2
Factors influencing a patient’s decision on out-of-pocket pharmaceutical therapy
 
Univariate
Multivariate
cOR
95% CI
P value
aOR
95% CI
P value
Age > 65
0.93
(0.75 − 1.16)
0.536
   
Male sex
1.00
(0.67–1.50)
1.000
   
Height (cm)
1.02
(1.01–1.04)
0.014*
1.02
(0.99–1.04)
0.159
Weight (kg)
1.01
(0.99–1.02)
0.329
   
Body mass index < 18.5 kg/m2
0.72
(0.47–1.11)
0.135
   
History of OA
1.40
(1.22–1.75)
0.003**
1.53
(1.09–2.15)
0.013*
History of RA
0.96
(0.68–1.35)
0.793
   
History of DM
0.75
(0.57–0.98)
0.037*
0.72
(0.48–1.07)
0.106
History of HTN
0.99
(0.78–1.27)
0.950
   
History of CVA
0.76
(0.51–1.12)
0.167
   
eGFR (mL/min/1.73 m2)
1.01
(1.00–1.01)
0.049*
1.00
(0.99–1.01)
0.838
Serum creatinine (mg/dL)
0.98
(0.92–1.05)
0.532
   
Serum albumin (g/dL)
1.87
(1.35–2.61)
< 0.001**
1.27
(0.69–2.35)
0.445
Serum albumin < 3.5
0.38
(0.21–0.69)
0.002**
0.59
(0.18–1.89)
0.373
ALK-p (mg/dL)
1.00
(0.99–1.00)
0.076
   
Corrected calcium (mg/dL)
1.07
(0.85–1.35)
0.578
   
Phosphorus (mg/dL)
0.88
(0.72–1.08)
0.220
   
i-PTH (pg/mL)
1.00
(0.99–1.00)
0.190
   
WBC count(109/L)
1.00
(0.99–1.00)
0.188
   
Hemoglobin (g/dL)
1.05
(0.96–1.14)
0.301
   
Lumbar spine BMD (g/cm2)
0.19
(0.08–0.44)
< 0.001**
0.25
(0.04–1.67)
0.151
Left femoral neck BMD (g/cm2)
0.34
(0.08–1.39)
0.132
   
Right femoral neck BMD (g/cm2)
0.70
(0.17–2.87)
0.619
   
Lumbar spine T-score ≤ − 2.5
1.62
(1.28–2.05)
< 0.001**
1.13
(0.69–1.85)
0.620
Left femoral neck T-score ≤ − 2.5
1.08
(0.85–1.37)
0.532
   
Right femoral neck T-score ≤ − 2.5
0.89
(0.70–1.13)
0.331
   
FRAX® (MOF)
1.01
(0.99–1.02)
0.126
   
Low risk
0.92
(0.68–1.23)
0.551
   
Moderate risk
0.86
(0.68–1.07)
0.178
   
High risk
1.28
(1.00–1.65)
0.049*
1.40
(0.96–2.05)
0.083
FRAX® (hip)
1.01
(0.99–1.03)
0.123
   
Low risk
1.24
(0.67–2.28)
0.497
   
Moderate risk
0.73
(0.52–1.01)
0.061
   
High risk
1.24
(0.91–1.67)
0.169
   
PE by Nurse Case Manager
5.33
(3.84–7.40)
< 0.001**
5.13
(3.38–7.78)
< 0.001**
*p < 0.05; **p < 0.01. Logistic regression.
cOR, Crude odds ratio; aOR, Adjusted odds ratio; CI, confidence interval; OA, osteoarthritis; RA, rheumatoid arthritis; DM, diabetes mellitus; HTN, hypertension; CVA, cerebrovascular accident; eGFR, estimated glomerular filtration rate; ALK-p, alkaline phosphatase; i-PTH, intact parathyroid hormone; WBC, white blood cell; BMD, bone mineral density; MOF, major osteoporotic fracture; PE, patient education

Discussion

The results of our study showed that after the implementation of an integrated care program in 2018, there was a significant increase in the number of patients with a T-score of ≤ − 2.5 who are ineligible for the NHI coverage, opting for out-of-pocket anti-osteoporotic pharmaceutical therapy, with the percentage increasing from 16 to 22%. Denosumab is the most commonly used out-of-pocket anti-osteoporotic medication. This might be because denosumab is administered as a subcutaneous injection every six months, which eliminates the need for daily oral medication or intravenous infusions. Furthermore, pharmacokinetic studies have shown that denosumab does not require dose adjustments in patients with chronic kidney disease, including those undergoing hemodialysis, making it an appropriate option for individuals with impaired kidney function. A history of osteoarthritis and patient education provided by nurse case managers were the main factors influencing the decision to choose out-of-pocket treatment. In our cohort, osteoarthritis was the most common comorbidity in patients with osteoporosis [41]. As a prevalent musculoskeletal disorder, patients are more likely to be concerned about their osteoporotic status. Table 1 shows that the majority of our study participants have a ten-year hip fracture probability more than 3%, with most FRAX® (hip) scores exceeding this threshold. This suggests that our participants were at high risk for fragility fractures. Patients who received education from nurse case managers were more than five times more likely to choose out-of-pocket anti-osteoporotic pharmaceutical therapy than those who did not receive such education. This suggests that targeted patient education and SDM facilitated by nurse case managers play a crucial role in encouraging high-risk patients with osteoporosis to pursue effective treatment options despite the lack of insurance coverage.
Fracture liaison services is a multidisciplinary approach designed to prevent secondary fractures. This program typically involves a coordinator that helps manage patient care through a team of specialists. Meta-analyses have shown that FLS improves patient compliance, increases the rates of BMD examinations and treatment, and generally improves patient outcomes. Notably, FLS is associated with reduced refracture rates and mortality [23, 24]. The FLS programs have also been shown to improve osteoporosis management, decrease fall incidents, and decrease mortality and refracture rates in Taiwan [4244]. Chang et al. [43] evaluated the effectiveness of an osteoporosis liaison service (OLS) program within a healthcare system over a one-year period. The OLS program consisted of two components: Medication Management Services (MMS) to enhance medication adherence and FLS for the prevention of secondary fractures. The MMS program included patients who had issues with osteoporosis medication, although they did not necessarily have fragility fractures. The study found that the OLS program improved osteoporosis care by increasing medication adherence and reducing falls. Many studies have reported that the coordinators or case managers of these programs are often nurses.
Several studies have highlighted the importance of nurse case managers and practitioners in improving osteoporosis care and enhancing the patients’ experiences [1522]. For example, Wozniak et al. [15] conducted a randomized controlled trial to explore patients’ experiences with nurse case-managed osteoporosis care. The study found that patients perceived this care as acceptable, accessible, and appropriate. It included both patients with previous fractures and those with low bone density but no history of fractures. Majumdar et al. [16] conducted a randomized controlled pilot trial to compare the effectiveness of a nurse case manager approach to a multifaceted intervention in enhancing osteoporosis care for patients with wrist fractures. They found that a nurse case manager was more effective than a multifaceted intervention in increasing the rate of appropriate osteoporosis care among high-risk patients following a wrist fracture. Similarly, Seuffert et al. [17] evaluated whether an educational intervention led by a nurse practitioner could improve treatment adherence in patients with low BMD in orthopedic practice. Their findings showed that nurse practitioner-led educational interventions improved the initiation of calcium, vitamin D, and other active treatments in these patients. Similar to these studies, our study shows that nurse case managers play a key role in influencing patients’ decisions. Medical practitioners should consider incorporating nurse case managers into their teams to provide targeted education and facilitate SDM, particularly in high-risk populations. However, Seuffert et al. also noted that even with education, a significant proportion of patients did not adhere to osteoporosis treatment recommendations, which is consistent with our findings. These findings suggest that, although educational interventions by healthcare providers can improve treatment adherence to some extent, ongoing efforts are required to address barriers to optimal osteoporosis care, such as patient concerns about treatment side effects and costs. Developing more comprehensive strategies, including patient education, follow-up, and support, may be necessary to enhance adherence and improve patient outcomes.
In addition to using a PDA to facilitate SDM, we also implemented an osteoporosis case management information system that allows nurse case managers to track patients’ follow-up appointments. When a patient misses a follow-up, our nurse case managers will contact them to understand the reason for their absence, assist with rescheduling the appointment, and educate them on the importance of medication adherence for treatment. Cornelissen et al. [20] described a study protocol evaluating the cost-effectiveness of combining a decision aid and motivational interviewing to improve medication persistence in osteoporosis patients treated at the FLS. Their study will compare a multi-component adherence intervention with standard care in a quasi-experimental design. The multi-component adherence intervention involves two nurse-led consultations: the first facilitates shared decision-making using the decision aid, and the follow-up employs motivational interviewing to support adherence. This study protocol further highlights the crucial role of nursing staff in enhancing patient compliance.
Discussions about costs during patient-clinician encounters, especially regarding out-of-pocket options, are often brief and rarely address affordability or cost-value considerations [45]. Shared decision-making provides a natural framework for these discussions, allowing patients to share their values and preferences while treatment options are explained by clinicians. Together, they can select the optimal course of action. Additionally, SDM has proven to be effective in enhancing decision-making and promoting health equity. Incorporating cost information into SDM helps patients understand trade-offs and align treatment choices with their preferences [46]. However, challenges, such as time constraints, can hinder these discussions [47]. Studies suggest that clinical staff can effectively communicate cost information; however, this may require additional training [48, 49]. Because osteoporosis-qualified nurse case managers have received specialized training in osteoporosis cases, we believe that they are well suited to assist with SDM and provide cost information at our hospital. Healthcare providers using PDAs should consider the financial costs to ensure that they align with the goals of SDM. Health systems should prioritize the dissemination of SDM materials that incorporate cost data. Maas et al. [50] reported on a study that focused on developing a decision aid to assist patients visiting FLS after a recent fracture, helping them decide whether to start anti-osteoporosis medication. In contrast, our study focuses on patients with osteoporosis who are at high risk, but have not yet fractured any bone and are not eligible for NHI coverage. Therefore, our PDA also provides cost information to patients. The use of PDA as part of an integrated care program was effective in our study. Healthcare providers should incorporate PDAs widely to help patients understand their options and make informed decisions, particularly regarding out-of-pocket treatments.
This study has a few limitations that must be acknowledged. First, the retrospective nature of the study may have introduced some unrecognized confounding factors, potentially biasing the results. We did not have data on the patients’ socioeconomic status, which was likely related to their decision to opt for out-of-pocket pharmaceutical therapy. Our study revealed that a substantial number of patients chose conservative treatment. Future studies can focus on understanding the barriers to treatment uptake, such as financial concerns, lack of awareness, or cultural factors, to develop more targeted interventions. Second, although we followed Taiwan’s existing guidelines to provide patient recommendations, we did not assess the long-term outcomes of these patients. Although our study showed increased uptake of out-of-pocket therapy, it would be valuable to conduct longitudinal studies to evaluate the long-term health outcomes and cost-effectiveness of these treatments in populations not covered by the NHI in Taiwan. This would provide more comprehensive data on the benefits of expanding coverage and integrating care programs. Third, the study population was limited to a single location, which may have introduced a selection bias. Further multicenter studies are needed to confirm the conclusion that patients who receive education from nurse case managers are significantly more likely to choose out-of-pocket anti-osteoporotic pharmaceutical therapy.

Conclusions

Patients who received education from nurse case managers at our hospital were significantly more likely to choose out-of-pocket anti-osteoporotic pharmaceutical therapy. Our study highlights the impact of nurse case managers on decision-making regarding out-of-pocket therapy among patients who are not eligible for NHI reimbursement. We propose that increase in out-of-pocket expenses following education indicates that informed personalized patient education by case managers can help bridge the gap between insurance coverage and medical guidelines.

Acknowledgements

The authors thank the Biostatistics Task Force of Taichung Veterans General Hospital and Chien-Yi Hsu for their consultations on the statistical analysis. The authors thank the Osteoporosis Prevention and Treatment Center of Taichung Veterans General Hospital for providing the osteoporosis database.

Declarations

This study was approved by the Institutional Review Board of the Taichung Veterans General Hospital (TCVGH-IRB No. CE22167A; Date of Approval: April 18, 2022), following the relevant institutional guidelines and regulations. Patient informed consent was waived because of the retrospective nature of the data analysis.
Not applicable.

Competing interests

The authors declare no competing interests.
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Metadaten
Titel
Impact of patient education by nurse case managers on decision making for out-of-pocket anti-osteoporotic pharmaceutical therapy: a single-center retrospective study
verfasst von
Ya-Lian Deng
Hsu-Tung Lee
Shih-Yi Lin
Tan-Hsiu Liao
Chia-Tien Hsu
Publikationsdatum
01.12.2024
Verlag
BioMed Central
Erschienen in
BMC Nursing / Ausgabe 1/2024
Elektronische ISSN: 1472-6955
DOI
https://doi.org/10.1186/s12912-024-02467-x