Incidence of Hip Fracture in U.S. Nursing Homes

Cholinesterase Inhibitor Initiation Does Not Increase the Risk of Fall-Related Injury in Older Adults Treated With Beta-Blockers: A Self-Controlled Case Series Design

BACKGROUND

Prescribing cholinesterase inhibitors (ChEIs) concurrently with beta-blockers might cause syncope that increases the risk of fall-related injuries (FRIs). This self-controlled case series study assesses the risk of FRIs associated with initiating ChEIs while receiving beta-blockers among Medicare fee-for-service-insured nursing home (NH) residents in the United States.

METHODS

We identified individuals at their first dispensing of a beta-blocker between 2016 and 2019 after at least 45 days of long-stay NH residency. Individuals were followed from the first day of beta-blocker use until beta-blocker discontinuation, Medicare disenrollment, death, or study end. ChEI initiation was classified as the first 60 days of new ChEI dispensing after 45 days of no ChEI exposure. FRIs were assessed during beta-blocker use periods, and age-adjusted incidence rate ratios (IRR) for ChEI-initiation days versus other days were calculated using conditional Poisson regression models. Analyses were weighted for event-dependent observation periods due to the high risk of mortality after an FRI in this population. Subgroup analyses were conducted for several key time-fixed variables, including sex, age, ChEI type, ChEI dose, beta-blocker selectivity, and beta-blocker dose.

RESULTS

The FRI risk after ChEI initiation was not elevated among 837 residents who experienced an FRI while using beta-blockers (IRR=0.90 [95%CLs 0.71, 1.15]). Analyses of ChEI initiation in several subgroups yielded similar results.

CONCLUSIONS

There was no substantial difference in FRI risk when initiating ChEIs among older NH residents receiving beta-blocker therapy versus periods without ChEI initiation, suggesting that there is no clinically significant pharmacodynamic drug-drug interaction between beta-blockers and ChEIs.

Comparative safety and cardiovascular effectiveness of sodium-glucose cotransporter-2 inhibitors and glucagon-like peptide-1 receptor agonists in nursing homes

AIM

Studies examining the safety and effectiveness of sodium-glucose cotransporter-2 inhibitors (SGLT2is) versus glucagon-like peptide-1 receptor agonists (GLP-1RAs) among community-dwelling adults may not generalize to nursing home (NH) residents, who are typically older and more multimorbid. We compared the safety and cardiovascular effectiveness of SGLT2is and GLP-1RAs among US NH residents.

MATERIALS AND METHODS

Eligible individuals were aged ≥66 years with type 2 diabetes mellitus and initiated an SGLT2i or GLP-1RA in an NH between 2013 and 2018. Safety outcomes included fall-related injuries, hypoglycaemia, diabetic ketoacidosis (DKA), urinary tract infection or genital infection, and acute kidney injury in the year following treatment initiation. Cardiovascular effectiveness outcomes included death, major adverse cardiovascular events and hospitalization for heart failure. Per-protocol adjusted hazard ratios (HR) were calculated using stabilized inverse probability of treatment and censoring weighted cause-specific hazard regression models accounting for 127 covariates.

RESULTS

The study population included 7710 residents (31.08% SGLT2i, 68.92% GLP-1RA). Compared with GLP-1RA initiators, SGLT2i initiators had higher rates of DKA (HR 1.95, 95% confidence limits 1.27, 2.99) and death (HR 1.18, 95% confidence limits 1.02, 1.36). Rates of urinary tract infection or genital infection, acute kidney injury, major adverse cardiovascular events, and heart failure were also elevated, while rates of fall-related injuries and hypoglycaemia were reduced, but all estimates were imprecise and highly compatible with no difference.

CONCLUSIONS

SGLT2is do not have superior, and may have inferior, effectiveness compared with GLP-1RAs for cardiovascular and mortality outcomes in NH residents. Residents initiating SGLT2is should be monitored closely for DKA.

Hip fracture rate and osteoporosis treatment in Ontario: A population-based retrospective cohort study

This population-based study analyzes hip fracture and osteoporosis treatment rates among older adults, stratified by place of residence prior to fracture. Hip fracture rates were higher among older adults living in the community and discharged to long-term care (LTC) after fracture, compared to LTC residents and older adults living in the community. Only 23% of LTC residents at high fracture risk received osteoporosis treatment.

PURPOSE

This population-based study examines hip fracture rate and osteoporosis management among long-term care (LTC) residents > 65 years of age compared to community-dwelling older adults at the time of fracture and admitted to LTC after fracture, in Ontario, Canada.

METHODS

Healthcare utilization and administrative databases were linked using unique, encoded identifiers from the ICES Data Repository to estimate hip fractures (identified using the Public Health Agency of Canada algorithm and International Classification of Diseases (ICD)-10 codes) and osteoporosis management (pharmacotherapy) among adults > 66 years from April 1, 2014 to March 31, 2018. Sex-specific and age-standardized rates were compared by pre-fracture residency and discharge location (i.e., LTC to LTC, community to LTC, or community to community). Fracture risk was determined using the Fracture Risk Scale (FRS).

RESULTS

At baseline (2014/15), the overall age-standardized hip fracture rate among LTC residents was 223 per 10,000 person-years (173 per 10,000 females and 157 per 10,000 males), 509 per 10,000 person-years (468 per 10,000 females and 320 per 10,000 males) among the community to LTC cohort, and 31.5 per 10,000 person-years (43.1 per 10,000 females and 25.6 per 10,000 males). During the 5-year observation period, the overall annual average percent change (APC) for hip fracture increased significantly in LTC (AAPC =  + 8.6 (95% CI 5.0 to 12.3; p = 0.004) compared to the community to LTC group (AAPC =  + 2.5 (95% CI - 3.0 to 8.2; p = 0.248)) and the community-to-community cohort (AAPC - 3.8 (95% CI - 6.7 to - 0.7; p = 030)). However, hip fracture rate remained higher in the community to LTC group over the study period. There were 33,594 LTC residents identified as high risk of fracture (FRS score 4 +), of which 7777 were on treatment (23.3%).

CONCLUSION

Overall, hip fracture rates have increased in LTC and among community-dwelling adults admitted to LTC after fracture. However, hip fracture rates among community-dwelling adults have decreased over time. A non-significant increase in osteoporosis treatment rates was observed among LTC residents at high risk of fracture (FRS4 +). Residents in LTC are at very high risk for fracture and require individualized based on goals of care and life expectancy.

Prescriber Perspectives and Experiences with Deprescribing Versus Continuing Bisphosphonates in Older Nursing Home Residents with Dementia

BACKGROUND

Few guidelines address fracture prevention medication use in nursing home (NH) residents with dementia.

OBJECTIVE

We sought to identify factors that influence prescriber decision-making for deprescribing of bisphosphonates for older NH residents with dementia.

METHODS

We conducted 12 semi-structured interviews with prescribers who care for older adults with dementia in NHs.

MAIN MEASURES

Interview prompts addressed experiences treating fractures, benefits, and harms of bisphosphonates, and experiences with deprescribing. Coding was guided by the social-ecological framework including patient-level (intrapersonal) and external (interpersonal, system, community, and policy) influences.

RESULTS

Most prescribers were physicians (83%); 75% were female and 75% were White. Most (75%) spent less than half of their clinical effort in NHs and half were in the first decade of practice. Among patient-level influences, prescribers uniformly agreed that a prior bisphosphonate treatment course of several years, emergence of adverse effects, and changing goals of care or limited life expectancy were compelling reasons to deprescribe. External influences were frequently discussed as barriers to deprescribing. At the interpersonal level, prescribers noted that family/informal caregivers are diverse in their involvement in decision-making, and frequently concerned about the adverse effects of bisphosphonates, but perceive deprescribing as "withdrawing care." At the health system level, prescribers felt that frequent transitions make it difficult to determine duration of prior treatment and to implement deprescribing. At the policy level, prescribers highlighted the lack of guidelines addressing residents with limited mobility and dementia or criteria for deprescribing, including uncertainty in the setting of prior fractures and lack of bone densitometry in NHs.

CONCLUSION

Systems-level barriers to evaluating bone densitometry and treatment history in NHs may impede person-centered decision-making for fracture prevention. Further research is needed to evaluate the residual benefits of bisphosphonates in medically complex residents with limited mobility and dementia to inform recommendations for deprescribing versus continued use.

Perceptions and practices of aged care pharmacists regarding osteoporosis management: a qualitative study

BACKGROUND

Osteoporosis is a common but sub-optimally managed disease among aged care residents. Although pharmacists are one of the key healthcare providers responsible for osteoporosis medication management there is limited research on their involvement.

AIM

This study explored the perceptions and practices of Australian pharmacists regarding osteoporosis management for aged care residents.

METHOD

Semi-structured interviews were conducted with aged care pharmacists. Interviews were recorded, transcribed, and analysed using a constructivist grounded theory approach.

RESULTS

Twenty-one aged care pharmacists were interviewed. Three main themes were identified: osteoporosis is highly prevalent but given low priority, factors affecting pharmacists' management of osteoporosis, and optimism for the future role of pharmacists in osteoporosis management. The complexity of aged care residents' healthcare needs and the silent, insidious nature of osteoporosis contribute to the low priority it is afforded. Barriers identified by pharmacists included their current practice model, limited access to residents' medical histories and difficulties accessing bone mineral density (BMD) testing. Interdisciplinary collaboration and education regarding osteoporosis management were seen as facilitators. Pharmacists were optimistic that an embedded practice model would improve their capacity to influence osteoporosis management.

CONCLUSION

The high prevalence and low priority of osteoporosis in the aged care setting presents pharmacists with an opportunity to improve medication management and reduce fracture risk. Barriers to osteoporosis management identified by pharmacists can be addressed by interdisciplinary collaboration and education. Pharmacists being embedded in aged care could enable more opportunities to contribute to the interdisciplinary team and become champions of osteoporosis management.

Racial and ethnic difference in the risk of fractures in the United States: a systematic review and meta-analysis

This systematic review and meta-analysis examined the association between race and ethnicity and fracture risk in the United States. We identified relevant studies by searching PubMed and EMBASE for studies published from the databases' inception date to December 23, 2022. Only observational studies conducted in the US population that reported the effect size of racial-ethnic minority groups versus white people were included. Two investigators independently conducted literature searches, study selection, risk of bias assessment, and data abstraction; discrepancies were resolved by consensus or consultation of a third investigator. Twenty-five studies met the inclusion criteria, and the random-effects model was used to calculate the pooled effect size due to heterogeneity between the studies. Using white people as the reference group, we found that people of other races and ethnic groups had a significantly lower fracture risk. In Black people, the pooled relative risk (RR) was 0.46 (95% confidence interval (CI), 0.43-0.48, p < 0.0001). In Hispanics, the pooled RR was 0.66 (95% CI, 0.55-0.79, p < 0.0001). In Asian Americans, the pooled RR was 0.55 (95% CI, 0.45-0.66, p < 0.0001). In American Indians, the pooled RR was 0.80 (95% CI, 0.41-1.58, p = 0.3436). Subgroup analysis by sex in Black people revealed the strength of association was greater in men (RR = 0.57, 95% CI = 0.51-0.63, p < 0.0001) than in women (RR = 0.43, 95% CI = 0.39-0.47, p < 0.0001). Our findings suggest that people of other races and ethnic groups have a lower fracture risk than white people.

Development and validation of the fall-related injury risk in nursing homes (INJURE-NH) prediction tool

BACKGROUND

Existing models to predict fall-related injuries (FRI) in nursing homes (NH) focus on hip fractures, yet hip fractures comprise less than half of all FRIs. We developed and validated a series of models to predict the absolute risk of FRIs in NH residents.

METHODS

Retrospective cohort study of long-stay US NH residents (≥100 days in the same facility) between January 1, 2016 and December 31, 2017 (n = 733,427) using Medicare claims and Minimum Data Set v3.0 clinical assessments. Predictors of FRIs were selected through LASSO logistic regression in a 2/3 random derivation sample and tested in a 1/3 validation sample. Sub-distribution hazard ratios (HR) and 95% confidence intervals (95% CI) were estimated for 6-month and 2-year follow-up. Discrimination was evaluated via C-statistic, and calibration compared the predicted rate of FRI to the observed rate. To develop a parsimonious clinical tool, we calculated a score using the five strongest predictors in the Fine-Gray model. Model performance was repeated in the validation sample.

RESULTS

Mean (Q1, Q3) age was 85.0 (77.5, 90.6) years and 69.6% were women. Within 2 years of follow-up, 43,976 (6.0%) residents experienced ≥1 FRI. Seventy predictors were included in the model. The discrimination of the 2-year prediction model was good (C-index = 0.70), and the calibration was excellent. Calibration and discrimination of the 6-month model were similar (C-index = 0.71). In the clinical tool to predict 2-year risk, the five characteristics included independence in activities of daily living (ADLs) (HR 2.27; 95% CI 2.14-2.41) and a history of non-hip fracture (HR 2.02; 95% CI 1.94-2.12). Performance results were similar in the validation sample.

CONCLUSIONS

We developed and validated a series of risk prediction models that can identify NH residents at greatest risk for FRI. In NH, these models should help target preventive strategies.

Pain trajectories of nursing home residents

BACKGROUND

Understanding changes in nursing home (NH) resident pain over time would provide a more informed perspective, allowing opportunities to alter the course of illness, plan care, and set priorities. Therefore, the purpose of this analysis was to identify and characterize clinically meaningful, dynamic pain trajectories in NH residents.

METHODS

Retrospective longitudinal analysis of NH resident pain scores with a length of stay >100 days (N = 4864). Group-based trajectory modeling was applied to Minimum Data Set 3.0 assessments to identify pain trajectories. Trajectories were then characterized using unadjusted and adjusted cross-sectional associations between residents' demographic and clinical characteristics and their pain trajectory.

RESULTS

We identified four distinct trajectories: (1) consistent pain absence (48.9%), (2) decreasing-increasing pain presence (21.8%), (3) increasing-decreasing pain presence (15.3%), and (4) persistent pain presence (14.0%). Demographics of younger age and living in a rural area were associated with the persistent pain presence trajectory. Clinical variables of obesity and intact cognition were associated with being in the persistent pain presence trajectory. A smaller proportion of residents with moderately or severely impaired cognition were in any of the trajectory groups with pain.

CONCLUSIONS

We identified and characterized four pain trajectories among NH residents, including persistent pain presence which was associated with demographic characteristics (younger, female, rural) and clinical factors (obese, fracture, contracture). Moreover, residents with a diagnosis of Alzheimer's disease or dementia were less likely to be in any of the three trajectories with pain, likely representing the difficulty in evaluating pain in these residents. It is important that NH staff understand, recognize, and respond to the factors associated with the identified pain trajectories to improve mitigation of potentially persistent pain (e.g., hip fracture, contracture) or improve proxy pain assessment skills for residents at risk for under reporting of pain (e.g., Alzheimer's Disease).

Nonoperative versus operative management of frail institutionalized older patients with a proximal femoral fracture: a cost-utility analysis alongside a multicenter prospective cohort study

Hip fractures are associated with significant healthcare costs. In frail institutionalized patients, the costs of nonoperative management are less than operative management with comparable short-term quality of life. Nonoperative management of hip fractures in patients at the end of life should be openly discussed with SDM.

PURPOSE

The aim was to describe healthcare use with associated costs and to determine cost-utility of nonoperative management (NOM) versus operative management (OM) of frail institutionalized older patients with a proximal femoral fracture.

METHODS

This study included institutionalized patients with a limited life expectancy aged ≥ 70 years who sustained a proximal femoral fracture in the Netherlands. Costs of hospital- and nursing home care were calculated. Quality adjusted life years (QALY) were calculated based on EuroQol-5D-5L utility scores at day 7, 14, and 30 and at 3 and 6 months. The incremental cost-effectiveness ratio (ICER) was calculated from a societal perspective.

RESULTS

Of the 172 enrolled patients, 88 (51%) patients opted for NOM and 84 (49%) for OM. NOM was associated with lower healthcare costs at 6 months (NOM; €2425 (SD 1.030), OM; €9325 (SD 4242), p < 0.001). The main cost driver was hospital stay (NOM; €738 (SD 841) and OM; €3140 (SD 2636)). The ICER per QALY gained in the OM versus NOM was €76,912 and exceeded the threshold of €20,000 per QALY. The gained QALY were minimal in the OM group in patients who died within 14- and 30-day post-injury, but OM resulted in more than triple the costs.

CONCLUSION

OM results in significant higher healthcare costs, mainly due to the length of hospital stay. For frail patients at the end of life, NOM of proximal femoral fractures should be openly discussed in SDM conversations due to the limited gain in QoL.

TRIAL REGISTRATION

Netherlands Trial Register (NTR7245; date 10-06-2018).

National trends in osteoporosis medication use among Medicare beneficiaries with and without Alzheimer's disease/related dementias

BACKGROUND

Osteoporotic fractures  are a leading cause of disability and premature death in the elderly. Patients with Alzheimer's and related dementia (ADRD) have high rates of osteoporosis (OP) and substantial risk of osteoporotic fractures. Yet research is sparse on trends and predictors of OP medication use in ADRD.

METHODS

Medicare beneficiaries with OP aged ≥ 67 years have Medicare parts A/B/D without HMO from 2016 to 2018. Our outcome was receipt of OP medications in 2018. A multivariable logistic regression assessed association between ADRD and OP drug prescribing, adjusted for age, sex, race, region, Medicare entitlement, dual Medicaid eligibility, chronic conditions, number of provider visits/hospitalizations, and nursing home (NH) resident status. Age/ADRD and NH residency/ADRD interactions were tested.

RESULTS

Our sample consisted of 47,871 people with OP and ADRD and 201,840 with OP without ADRD. OP drug use was 38.6% in ADRD patients vs. 52.7% in non-ADRD. After adjustment for demographics, chronic conditions, and previous hospitalizations/physician visits, the OR for OP drug in ADRD vs. non-ADRD was 0.85 (95% CI: 0.83-0.87). NH residents had lower odds for OP medication (OR: 0.61, 95% CI: 0.58-0.64). There were significant interactions between ADRD and age, and between ADRD and NH residency. The OR for OP drug use associated with ADRD was 0.88 (95% CI: 0.86-0.90) among community-dwelling elders and 0.66 (95% CI: 0.64-0.69) among NH residents.

CONCLUSIONS

ADRD patients received OP drugs at a lower rate than their non-ADRD counterparts. More research is needed on when to prescribe or deprescribe OP drugs in the context of different ADRD severity, patient preferences, remaining life expectancy, and time-to-benefit from OP drugs.

A Scoping Review of Adverse Incidents Research in Aged Care Homes: Learnings, Gaps, and Challenges

Background: Adverse incidents are well studied within acute care settings, less so within aged care homes. The aim of this scoping review was to define the types of adverse incidents studied in aged care homes and highlight strengths, gaps, and challenges of this research. Methods: An expanded definition of adverse incidents including physical, social, and environmental impacts was used in a scoping review based on the PRISMA Extension for Scoping Reviews Checklist. MEDLINE, CINAHL, and EBSCOhost were searched for English language, peer-reviewed studies conducted in aged care home settings between 2000 and 2020. Forty six articles across 12 countries were identified, charted, and analyzed using descriptive statistics and narrative summary methods. Results: Quantitative studies (n = 42, 91%) dominated adverse incidents literature. The majority of studies focused on physical injuries (n = 29, 63%), with fewer examining personal/interpersonal (15%) and environmental factors (22%). Many studies did not describe the country's aged care system (n = 26, 56%). Only five studies (11%) included residents' voices. Discussion: This review highlights a need for greater focus on resident voices, qualitative research, and interpersonal/environmental perspectives in adverse event research in aged care homes. Addressing these gaps, future research may contribute to better understanding of adverse incidents within this setting.

Trajectories of cognitive and physical performance after accidental falls in nursing home residents: A prospective study

This prospective study evaluated cognitive and physical trajectories of nursing home (NH) residents after fall occurrence and their predictors. In 167 residents aged ≥60, we considered the closest pre-fall assessment and up to the first three post-fall assessments of cognitive and physical functions performed through Mini-Mental State Examination (MMSE) and Tinetti tests. Mixture models identified three post-fall cognitive and physical trajectories: stability, slow decline, and rapid decline. At logistic regression, older age, fewer informal visits, and falls within one month from institutionalization increased the probability of experiencing a decline in MMSE and Tinetti scores. Worse pre-fall cognitive function increased the likelihood of cognitive and physical decline, while worse pre-fall Tinetti score negatively impacted only physical decline. In conclusion, the impact of falls on the cognitive and physical health of NH residents may be modulated by their pre-fall cognitive function and some modifiable factors, such as social interactions and physical function.

Identification of Fall-Related Injuries in Nursing Home Residents Using Administrative Claims Data

BACKGROUND

Fall-related injuries (FRIs) are a leading cause of morbidity, mortality, and costs among nursing home (NH) residents. Carefully defining FRIs in administrative data is essential for improving injury-reduction efforts. We developed a series of novel claims-based algorithms for identifying FRIs in long-stay NH residents.

METHODS

This is a retrospective cohort of residents of NH residing there for at least 100 days who were continuously enrolled in Medicare Parts A and B in 2016. FRIs were identified using 4 claims-based case-qualifying (CQ) definitions (Inpatient [CQ1], Outpatient and Provider with Procedure [CQ2], Outpatient and Provider with Fall [CQ3], or Inpatient or Outpatient and Provider with Fall [CQ4]). Correlation was calculated using phi correlation coefficients.

RESULTS

Of 153 220 residents (mean [SD] age 81.2 [12.1], 68.0% female), we identified 10 104 with at least one FRI according to one or more CQ definition. Among 2 950 residents with hip fractures, 1 852 (62.8%) were identified by all algorithms. Algorithm CQ4 (n = 326-2 775) identified more FRIs across all injuries while CQ1 identified less (n = 21-2 320). CQ2 identified more intracranial bleeds (1 028 vs 448) than CQ1. For nonfracture categories, few FRIs were identified using CQ1 (n = 20-488). Of the 2 320 residents with hip fractures identified by CQ1, 2 145 (92.5%) had external cause of injury codes. All algorithms were strongly correlated, with phi coefficients ranging from 0.82 to 0.99.

CONCLUSIONS

Claims-based algorithms applied to outpatient and provider claims identify more nonfracture FRIs. When identifying risk factors, stakeholders should select the algorithm(s) suitable for the FRI and study purpose.

Prevention of hip fractures in older adults residing in long-term care facilities with a hip airbag: a retrospective pilot study

Background

Hip and pelvic fractures do commonly occur among older adults. This pilot study aimed to evaluate the effect of introduction of the WOLK hip airbag on the incidence of hip fractures.

Methods

A retrospective study was performed among 969 participants residing within 11 long-term care facilities for older patients, belonging to one large healthcare organization in The Netherlands. The intervention concerned application of 45 WOLK hip-airbags, distributed among selected residents of the long-term care facilities. Inclusion criteria; physically active participants with a pelvic circumference between 90-125 cm able to wear the hip airbag. Exclusion criteria; participants who continuously removed the hip airbag themselves or participants who depended on a wheelchair for mobility. Main outcome measures were the occurrence of falls and hip, pelvic and other fractures.

Results

The incidence of hip and pelvic fractures declined from 3.3/100 person years to 1.8/100 person years during the study for an Incidence Rate Ratio (IRR) of 0.55 (95% confidence interval (95%CI) 0.34–0.87) in the entire study population. The incidence of other fractures did not decline during the study period (IRR 0.72;95%CI 0.37–1.40). The incidence of falls declined to some extent during the study (IRR 0.88; 95%CI 0.83–0.93).

Conclusions

After introduction of the WOLK hip airbag a reduction of the incidence of hip and pelvic fractures by almost half was observed in older patients residing in long-term care facilities, even though only 45 hip airbags were distributed among the 969 residents. As selection bias cannot be ruled out in this study, the results of this pilot study warrant replication by a future clinical trial to determine true effectiveness of this intervention.

Patterns of oral bisphosphonate deprescribing in older nursing home residents with dementia

In a national sample of Medicare nursing home residents with dementia treated with bisphosphonates, 20% had bisphosphonates deprescribed. Residents with clinical characteristics representing decreased likelihood for long-term benefit were more likely to have bisphosphonates deprescribed. Future studies are needed to evaluate outcomes of deprescribing bisphosphonates in this population.

INTRODUCTION

To determine incidence of deprescribing bisphosphonates among nursing home (NH) residents with dementia and identify factors associated with deprescribing.

METHODS

2015-2016 Medicare claims, Part D prescriptions, Minimum Data Set (MDS) 3.0, and Nursing Home Compare for non-skilled NH residents aged 65 + with dementia and prescriptions for oral bisphosphonates overlapping the first 14 days of the stay. Our primary definition for deprescribing was a 90-day gap in medication supply; we also explored the reliability of different deprescribing definitions (30-, 90-, 180-day gaps). We estimated associations of NH, provider, and resident characteristics with deprescribing bisphosphonates using competing risks regression models.

RESULTS

Most NH residents with dementia treated with bisphosphonates (n = 5312) were ≥ 80 years old (72%), white (81%), and female (90%); about half were dependent for transfers (50%) or mobility (45%). Using a 90-day gap in supply, the 180-day cumulative incidence of deprescribing bisphosphonates was 14.8%. This increased to 32.1% using a 30-day gap and decreased to 11.7% using a 180-day gap. Factors associated with increased likelihood for bisphosphonate deprescribing were age ≥ 90 years, newly admitted (vs. prevalent stay), dependent for mobility, swallowing difficulty, > 1 hospitalization in the prior year, CCRC facility, and nurse practitioner primary provider (vs. physician). Cancer and western geographic region were associated with reduced likelihood for deprescribing.

CONCLUSION

In a national sample of NH residents with dementia, bisphosphonate deprescribing was uncommon, and associated with clinical characteristics signifying poor prognosis and decreased likelihood for long-term benefit. Future studies should evaluate clinical outcomes of deprescribing bisphosphonates in this population.

Decrease in incidence of proximal femur fractures in the elderly population during the Covid-19 pandemic: a case-control study

Background

The World Health Organization classified Covid-19 as a pandemic during the first months of 2020 as lockdown measures were implemented globally to mitigate the increasing incidence of Covid-19-related morbidity and mortality. The purpose of this study was to evaluate the effect of national lockdown measures on proximal femur fracture epidemiology. Our hypothesis was that due to the prolonged period of stay-at-home orders, we would observe a decrease in the incidence of proximal femur fractures during the years 2020–21.

Methods

A retrospective case–control study of 2784 hip fractures admitted to the emergency department at one hospital between January 1, 2010, and March 31, 2021, was conducted. Cases were stratified weekly, and an analysis was conducted comparing cases occurring during government-imposed lockdown periods of 2020–21 to corresponding periods during 2010–2019. Furthermore, the trend of cases throughout the year of 2020 was observed.

Results

Of all proximal femur fracture cases included, 2522 occurred between 2010–2019 and 261 during the Covid-19 period. There was no significant difference in age (81.95 vs. 82.09; P = 0.78) or gender (P = 0.12). There was a total decrease of 21.64% in proximal femur fracture per week during the entirety of the Covid-19 pandemic period compared to the previous years (3.64 ± 1.99 vs. 4.76 ± 0.83; P = 0.001). During all three lockdown periods, there was a significant decrease in proximal femur fracture cases per week (3.55 ± 2.60 vs. 4.87 ± 0.95; P = 0.04), and the most pronounced decrease occurred during the third lockdown period (2.89 ± 1.96 vs. 5.23 ± 1.18; P = 0.01).

Conclusion

We observed a total decrease in the number of proximal femur fractures occurring during the Covid-19 era compared to previous years and specifically a decrease of cases occurring during the government-imposed lockdown periods. The decrease in cases was more pronounced during the second and third lockdown periods.

Does Zoledronic Acid Improve Appendicular Lean Mass in Older Women with Osteoporosis? A Sub-Analysis of a Randomized Clinical Trial

BACKGROUND

Coexistence of osteoporosis and sarcopenia (osteosarcopenia), is associated with increased risk for fractures, falls, and mortality. Although there are multiple medications for management of osteoporosis, there are no approved pharmacotherapy for sarcopenia.

OBJECTIVES

We examined the effect of zoledronic acid on muscle mass indices including ALM (Appendicular Lean Mass) and ALM/Height2 in a cohort of older women with osteoporosis who were residents of Long-Term Care Communities (LTCCs).

DESIGN

A secondary analysis of a 2-year double-blind, randomized, placebo-controlled clinical trial.

SETTING

Residents of LTCCs.

PARTICIPANTS

Sixty-two postmenopausal women with osteoporosis.

INTERVENTION

Participants either received 5 mg infusion of zoledronic acid or placebo, once at the start of the study.

MEASUREMENTS

Participant's ALM/Height2, ALM, total hip BMD (Bone Mineral Density) and spine BMD were measured in 6, 12 and 24 months.

RESULTS

On average, participants were 86.7 years old and had a BMI of 27.4 kg/m2. There was no significant difference in change from baseline (mean ± SE) between the treatment group and the placebo group in ALM/Height2: (-0.15 vs -0.02, p = 0.541) and (-0.17 vs 0.001, p = 0.315) and (-0.29 vs -0.19, p = 0.646) or ALM: (-0.38 vs -0.09, p = 0.455) and (-0.45 vs -0.005, p = 0.216) and (-0.70 vs -0.48, p = 0.553) at 6, 12, and 24 months respectively. In addition, after adjusting for a possible confounding, the ALM/Height2 or ALM did not have significant improvements from baseline at 6 months, 12 months, and 24 months either in the treatment group or in the placebo group. However, there were significant improvements in the BMD at the total hip and the spine in the treatment group compared with the placebo group at all three time points.

CONCLUSIONS

Among older women residing in LTCCs, a single dose of zoledronic acid did not increase ALM/Height2 and ALM, despite improving the BMD at the total hip and the spine at the 2-year follow-up.

Falls may trigger body weight decline in nursing home residents

OBJECTIVES

The effect of falls on changes in body weight is still unknown. This study investigated the extent to which falls can modify the course of body weight in nursing home residents, and aimed to identify the factors that might modulate this effect.

METHODS

The sample included 132 residents aged ≥60 y who had experienced at least one fall after nursing home admission. Body weight was measured monthly in the 6 mo after the fall in the entire sample, and also in the 6 mo prefall in a subsample (n = 111). Sociodemographic and health data were obtained from medical records. Linear mixed models were used to estimate the average monthly changes in body weight after the fall in the total sample, and as a function of the sociodemographic and medical factors.

RESULTS

Falls modified the course of body weight in the total sample (β = -0.28, 95% confidence interval, -0.44 to -0.12, for the change in slope before and after fall) in all age classes and especially in individuals with severe cognitive impairment who received less-frequent informal visits (β = -0.55, 95% confidence interval, -0.87 to -0.22). Individuals aged ≥90 y and those with severe cognitive impairment had a steeper monthly weight decline in the 6 mo postfall, of 0.23 and 0.35 kg greater, respectively, than their younger and cognitively healthier counterparts.

CONCLUSIONS

Falls may trigger a body weight loss in nursing home residents, especially in the oldest old people and those with severe cognitive impairment who receive little support from informal caregivers. These findings highlight the importance of monitoring nutritional status of people who live in institutions after falls.

Comparative effectiveness of denosumab, teriparatide, and zoledronic acid among frail older adults: a retrospective cohort study

The comparative effects of zoledronic acid, denosumab, and teriparatide for preventing hip fractures in frail older adults, especially those in nursing homes, were unknown. We found that denosumab and zoledronic acid may be as effective as teriparatide for hip fracture prevention in nursing home residents.

INTRODUCTION

Several non-oral drugs exist for osteoporosis treatment, including zoledronic acid (ZA), denosumab, and teriparatide. Little data exist on the comparative effectiveness of these drugs for hip fracture prevention in frail older adults. We examined their comparative effectiveness in one of the frailest segments of the US population-nursing home (NH) residents.

METHODS

We conducted a national retrospective cohort study of NH residents aged ≥ 65 years using 2012 to 2016 national US Minimum Data Set clinical assessment data and linked Medicare claims. New parenteral ZA, denosumab, and teriparatide use was assessed via Medicare Parts B and D; hip fracture outcomes via Part A; and 125 covariates for confounding adjustment via several datasets. We used inverse probability weighted (IPW) competing risk regression models to compare hip fracture risk between groups with teriparatide as the reference.

RESULTS

The study cohort (N = 2019) included 1046 denosumab, 578 teriparatide, and 395 ZA initiators. Mean age was 85 years, 90% were female, and 68% had at least moderate functional impairment. Seventy-two residents (3.6%) had a hip fracture and 1100 (54.5%) died over a mean follow-up of 1.5 years. Compared to teriparatide use, denosumab use was associated with a 46% lower risk of hip fracture (HR 0.54, 95% CI 0.29-1.00) and no difference was observed for ZA (HR 0.70, 95% CI 0.26-1.85).

CONCLUSIONS

Denosumab and ZA may be as effective as teriparatide for hip fracture prevention in frail older adults. Given their lower cost and easier administration, denosumab and ZA are likely preferable non-oral treatments for most frail, older adults.

Priority-Setting to Address the Geriatric Pharmacoparadox for Pain Management: A Nursing Home Stakeholder Delphi Study

BACKGROUND

Evidence to guide clinical decision making for pain management in nursing home residents is scant.

OBJECTIVE

Our objective was to explore the extent of consensus among expert stakeholders regarding what analgesic issues should be prioritized for comparative-effectiveness studies of beneficial and adverse effects of analgesic regimens in nursing home residents.

METHODS

Two stakeholder panels (nurses only and a mix of clinicians/researchers) were engaged (n = 83). During a three-round online modified Delphi process, participants rated and commented on the need for new evidence on nonopioid analgesic regimens and opioid regimens, short-term adverse effects, long-term adverse effects, comorbid conditions, and other factors in the nursing home setting (9-point scale; 1 = not essential to 9 = very essential to obtain new evidence). The quantitative data were analyzed to determine the existence of consensus using an approach from the RAND/UCLA Appropriateness Method User's Manual. The qualitative data, consisting of participant explanations of their numeric ratings, were thematically analyzed by an experienced qualitative researcher.

RESULTS

For nursing home residents, evidence generation was deemed essential for opioids, gabapentin (alone or with serotonin norepinephrine reuptake inhibitors [SNRIs]), and nonsteroid anti-inflammatory drugs with SNRIs. Experts prioritized the following outcomes as essential: long-term adverse effects, including delirium, cognitive decline, and decline in activities of daily living (ADLs). Kidney disease and depression were deemed essential conditions to consider in studies of pain medications. Coprescribing analgesic regimens with benzodiazepines, sedating medications, serotonergic medications, and non-SNRI antidepressants were considered essential areas of study. Experts noted that additional study was essential in residents with moderate/severe cognitive impairment and limitations in ADLs.

CONCLUSIONS

Stakeholder priorities for more evidence reflect concerns related to treating medically complex residents with complex drug regimens and included long-term adverse effects, coprescribing, and sedating medications. Carefully conducted observational studies are needed to address the vast evidence gap for nursing home residents.

An Outreach Rehabilitation Program for Nursing Home Residents After Hip Fracture May Be Cost-Saving

BACKGROUND

We compared the cost-effectiveness of 10 weeks of outreach rehabilitation (intervention) versus usual care (control) for ambulatory nursing home residents after hip fracture.

METHODS

Enrollment occurred February 2011 through June 2015 in a Canadian metropolitan region. Seventy-seven participants were allocated in a 2:1 ratio to receive a 10-week rehabilitation program (intervention) or usual care (control) (46 intervention; 31 control). Using a payer perspective, we performed main and sensitivity analyses. Health outcome was measured by quality-adjusted life years (QALYs), using the EQ5D, completed at study entry, 3-, 6-, and 12-months. We obtained patient-specific data for outpatient visits, physician claims, and inpatient readmissions; the trial provided rehabilitation utilization/cost data. We estimated incremental cost and incremental effectiveness.

RESULTS

Groups were similar at study entry; the mean age was 87.9 ± 6.6 years, 54 (71%) were female and 58 (75%) had severe cognitive impairment. EQ5D QALYs scores were nonsignificantly higher for intervention participants. Inpatient readmissions were two times higher among controls, with a cost difference of -$3,350/patient for intervention participants, offsetting the cost/intervention participant of $2,300 for the outreach rehabilitation. The adjusted incremental QALYs/patient difference was 0.024 favoring the intervention, with an incremental cost/patient of -$621 for intervention participants; these values were not statistically significant. A sensitivity analysis reinforced these findings, suggesting that the intervention was likely dominant.

CONCLUSION

A 10-week outreach rehabilitation intervention for nursing home residents who sustain a hip fracture may be cost-saving, through reduced postfracture hospital readmissions. These results support further work to evaluate postfracture rehabilitation for nursing home residents.

Are Nursing Home Residents With Dementia Appropriately Treated for Fracture Prevention?

Clinicians struggle with whether to prescribe osteoporosis medications for fracture prevention for older nursing home (NH) residents with dementia, given the lack of evidence in this population. To better understand real-world clinical practice, we conducted a retrospective cohort study examining patterns of fracture prevention medication use for older NH residents with dementia and high fracture risk. Data sources included 2015-16 Medicare claims, Part D prescriptions, and Minimum Data Set (MDS) assessments. Among NH residents aged 65+ with dementia and prior fracture or high fracture risk based on the MDS FRAiL (Fracture Risk Assessment in Long-term care), we assessed medications for fracture prevention using prescription data from 1 year prior through 90 days after the first MDS assessment. Multivariable logistic regression was used to evaluate factors associated with receiving treatment. Most of the sample (n = 72,639) was >80 years (78%), female (82%), and white (88%); 63% had moderate/severe dementia and 60% had an osteoporosis diagnosis. Only 11.6% received fracture prevention medications. In adjusted analyses, treated residents were more likely to be female, Hispanic or other non-black minority, <90 years old, and newly admitted to the NH. Other associated factors included osteoporosis diagnosis, walker or wheelchair use, bone disorders (eg, Paget disease), >5 medications, steroid or proton pump inhibitor use, and regions outside of the Northeast. Resident characteristics suggestive of comorbidity burden and worsening dementia were associated with reduced likelihood of treatment. Low use of fracture prevention medications for NH residents with dementia may reflect an attempt by prescribers reconcile medication use with changing goals of care, or inappropriate underuse in patients who still have high fracture risk. Additional research is needed to help clinicians better evaluate when to use these medications in this heterogeneous and vulnerable population.

Effectiveness of community-based rehabilitation interventions incorporating outdoor mobility on ambulatory ability and falls-related self-efficacy after hip fracture: a systematic review and meta-analysis

There is limited evidence from 11 randomised controlled trials on the effect of rehabilitation interventions which incorporate outdoor mobility on ambulatory ability and/or self-efficacy after hip fracture. Outdoor mobility should be central (not peripheral) to future intervention studies targeting improvements in ambulatory ability.

PURPOSE

Determine the extent to which outdoor mobility is incorporated into rehabilitation interventions after hip fracture. Synthesise the evidence for the effectiveness of these interventions on ambulatory ability and falls-related self-efficacy.

METHODS

Systematic search of MEDLINE, Embase, PsychInfo, CINAHL, PEDro and OpenGrey for published and unpublished randomised controlled trials (RCTs) of community-based rehabilitation interventions incorporating outdoor mobility after hip fracture from database inception to January 2021. Exclusion of protocols, pilot/feasibility studies, secondary analyses of RCTs, nonrandomised and non-English language studies. Duplicate screening for eligibility, risk of bias, and data extraction sample. Random effects meta-analysis. Statistical heterogeneity with inconsistency-value (I²).

RESULTS

RCTs (n = 11) provided limited detail on target or achieved outdoor mobility intervention components. There was conflicting evidence from 2 RCTs for the effect on outdoor walking ability at 1-3 months (risk difference 0.19; 95% confidence intervals (CI): 0.21, 0.58; I² = 92%), no effect on walking endurance at intervention end (standardised mean difference 0.05; 95% CI: - 0.26, 0.35; I² = 36%); and suggestive (CI crosses null) of a small effect on self-efficacy at 1-3 months (standardised mean difference 0.25; 95% CI: - 0.29, 0.78; I² = 87%) compared with routine care/sham intervention.

CONCLUSION

It was not possible to attribute any benefit observed to an outdoor mobility intervention component due to poor reporting of target or achieved outdoor mobility and/or quality of the underlying evidence. Given the low proportion of patients recovering outdoor mobility after hip fracture, future research on interventions with outdoor mobility as a central component is warranted.

TRIAL REGISTRATION

PROSPERO registration: CRD42021236541.

Effects of a Multicomponent Program on Fall Incidence, Fear of Falling, and Quality of Life among Older Adult Nursing Home Residents

Background

Falling is one of the most common problems in older adults and can lead to additional health problems. This study aimed to determine the effects of a multicomponent program on fall incidence and quality of life in older adult nursing home residents.

Methods

This was a quasi-experimental study with a pretest and post-test design. The study population comprised 55 older adults residing in nursing homes. The intervention was a multicomponent program including physical activities, training sessions, and physical environment modifications in nursing homes that was conducted for 8 weeks. The data collection tools included a socio-demographic characteristics form and questionnaires pertaining to the quality of life and fear of falls, which were completed by the participants before and after the intervention.

Results

The mean age of the participants was 68.48 years, and most (90%) were illiterate. We observed a significant difference between the mean number of falls and the scores for fear of falling before and after the intervention (p<0.001). We also observed a significant difference between the total quality of life scores and all of the related dimensions before and after the intervention, indicating that the quality of life of the older adults had improved after the intervention (p<0.001).

Conclusion

The results of this study indicated that the multicomponent fall prevention program was effective in improving the quality of life, fall rate, and fear of falling among older residents in nursing homes. Further studies are needed to explore the long-term effects of these interventions.

The Effect of Fall Biomechanics on Risk for Hip Fracture in Older Adults: A Cohort Study of Video-Captured Falls in Long-Term Care

Over 95% of hip fractures in older adults are caused by falls, yet only 1% to 2% of falls result in hip fracture. Our current understanding of the types of falls that lead to hip fracture is based on reports by the faller or witness. We analyzed videos of real-life falls in long-term care to provide objective evidence on the factors that separate falls that result in hip fracture from falls that do not. Between 2007 and 2018, we video-captured 2377 falls by 646 residents in two long-term care facilities. Hip fracture was documented in 30 falls. We analyzed each video with a structured questionnaire, and used generalized estimating equations (GEEs) to determine relative risk ratios (RRs) for hip fracture associated with various fall characteristics. All hip fractures involved falls from standing height, and pelvis impact with the ground. After excluding falls from lower than standing height, risk for hip fracture was higher for sideways landing configurations (RR = 5.50; 95% CI, 2.36-12.78) than forward or backward, and for falls causing hip impact (3.38; 95% CI, 1.49-7.67). However, hip fracture risk was just as high in falls initially directed sideways as forward (1.14; 95% CI, 0.49-2.67), due to the tendency for rotation during descent. Falling while using a mobility aid was associated with lower fracture risk (0.30; 95% CI, 0.09-1.00). Seventy percent of hip fractures involved impact to the posterolateral aspect of the pelvis. Hip protectors were worn in 73% of falls, and hip fracture risk was lower in falls where hip protectors were worn (0.45; 95% CI, 0.21-0.99). Age and sex were not associated with fracture risk. There was no evidence of spontaneous fractures. In this first study of video-captured falls causing hip fracture, we show that the biomechanics of falls involving hip fracture were different than nonfracture falls for fall height, fall direction, impact locations, and use of hip protectors. © 2020 The Authors. Journal of Bone and Mineral Research published by American Society for Bone and Mineral Research.

Secular Trends in the Incidence of Hip Fracture Among Nursing Home Residents

A recent study suggested a decline in the incidence of hip fracture among US women between 2002 and 2012, followed by a leveling in the incidence rate from 2013 to 2015. Newly admitted nursing home residents are particularly vulnerable to hip fracture, and it is unclear whether that trend is observed in this high risk group. The purpose of our study was to describe trends in hip fracture rates and postfracture mortality among 2.6 million newly admitted US nursing home residents from 2007 to 2015, and to examine whether these trends could be explained by differences in resident characteristics. Medicare claims data were linked with the Minimum Data Set (MDS), a clinical assessment performed quarterly on all nursing home residents. In each year (2007-2015), we identified newly admitted long-stay (ie, 100 days in the same facility) nursing home residents. Hip fracture was defined using Medicare Part A diagnostic codes. Follow-up time was calculated from the index date until the first event of hospitalized hip fracture, Medicare disenrollment, death, or until 1 year. Poisson regression was used to adjust rates of hip fracture for age and sex. The number of newly admitted nursing home residents ranged from 324,508 in 2007 to 257,350 in 2015. Although mean age remained similar (83 years), residents were more functionally dependent over time. There was a small absolute decrease in the incidence rate of hip fracture between 2007 (3.32/100 person-years) and 2013 (2.82/100 person-years), with an increase again in 2015 (3.03/100 person-years). Adjusting for patient characteristics somewhat attenuated these trends. One-year mortality was high following fracture in all years (42.6% in 2007, 42.1% in 2014). In summary, we observed a recent slight rise in the incidence rates of hip fracture among nursing home residents that was at least partially explained by differences in resident characteristics over time. © 2020 American Society for Bone and Mineral Research.

Rehabilitation After Hip Fracture for Nursing Home Residents: A Controlled Feasibility Trial

BACKGROUND

This study compared functional outcomes at 3 months after hip fracture surgery between nursing home residents participating in a 10-week outreach rehabilitation program and those receiving usual care. Function, health-related quality of life, and mortality were also compared over 12 months, and outreach program feasibility was assessed.

METHODS

A feasibility trial was undertaken in Canadian nursing homes; of 77 participants, 46 were allocated to Outreach and 31 to Control prior to assessing function or cognition. Outreach participants received 10 weeks of rehabilitation (30 sessions), and Control participants received usual posthospital fracture care in their nursing homes. The primary outcome was the Functional Independence Measure Physical Domain (FIMphysical) score 3 months post-fracture; we also explored FIM Locomotion and Mobility. Secondary outcomes were FIM scores, EQ-5D-3L scores, and mortality over 12 months. Program feasibility was also evaluated.

RESULTS

The mean age was 88.7 ± 7.0 years, 55 (71%) were female, and 58 (75%) had severe cognitive impairment with no significant group differences (p > .14). Outreach participants had significantly higher FIM Locomotion than usual care (p = .02), but no significant group differences were seen in FIMphysical or FIM Mobility score 3 months post-fracture. In adjusted analyses, Outreach participants reported significant improvements in all FIM and EQ-5D-3L scores compared with Control participants over 12 months (p < .05). Mortality did not differ by group (p = .80). Thirty (65%) Outreach participants completed the program.

CONCLUSIONS

Our feasibility trial demonstrated that Outreach participants achieved better locomotion by 3 months post-fracture compared with participants receiving usual postfracture care; benefits were sustained to 12 months post-fracture. In adjusted analyses, Outreach participants also showed sustained benefits in physical function and health-related quality of life.

Validation of the FRAiL model to predict non-vertebral and hip fractures in nursing home residents

OBJECTIVE

Tools were unavailable to assess fracture risk in nursing homes (NH); therefore, we developed the Fracture Risk Assessment in Long term care (FRAiL) model. The objective of this validation study was to assess the performance of the FRAiL model to predict 2-year risk of non-vertebral and hip fractures in a separate large cohort of NH residents.

METHODS

This retrospective cohort study included most long-stay NH residents in the United States (N = 896,840). Hip and non-vertebral fractures were identified using Medicare claims. The Minimum Data Set (MDS) was used to identify characteristics from the original FRAiL model. Multivariable competing risk regression was used to model risk of fracture.

RESULTS

Mean age was 83.8 years (±8.2 years) and 70.7% were women. Over a mean follow-up of 1.52 years (SD 0.65), 41,531 residents (4.6%) were hospitalized with non-vertebral fracture (n = 30,356 hip fractures). In the fully adjusted model, 14/15 model characteristics remained significant predictors of non-vertebral fracture. Female sex (HR = 1.55, 95% CI 1.52, 1.59), wandering (HR = 1.30, 95% CI 1.26, 1.34), and falls (HR = 1.28, 95% CI 1.26, 1.31) were strongly associated with non-vertebral fracture rate. Total dependence in ADLs (versus independence) was associated with a decrease in non-vertebral fracture rate (HR = 0.57, 95% CI 0.52, 0.64). Discrimination was moderate in men (C-index = 0.68 for hip, 0.66 for non-vertebral) and women (C-index = 0.68 for hip, 0.65 for non-vertebral), and calibration was excellent.

CONCLUSIONS

Our model comprised entirely from routinely collected data was able to identify NH residents at greatest risk for non-vertebral fracture.

Predictors of Hip Fracture Despite Treatment with Bisphosphonates among Frail Older Adults

OBJECTIVES

Bisphosphonates are effective at preventing hip fractures among older adults, yet many patients still fracture while on treatment and may benefit from additional preventive interventions. Little data are specifically available to target such efforts among bisphosphonate users. We aimed to identify predictors of hip fracture unique to frail older adults initiating pharmacologic treatment for osteoporosis.

DESIGN

Retrospective cohort using 2008-2013 linked national Minimum Data Set assessments, Medicare claims, and nursing home (NH) facility data.

SETTING

NHs in the United States.

PARTICIPANTS

Long-stay NH residents 65 years or older who initiated treatment with a bisphosphonate (N = 17 753). Estimates for bisphosphonate initiators were contrasted with those for calcitonin initiators (control group; N = 5348).

MEASUREMENTS

Hospitalized hip fracture outcomes were measured using Part A claims. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated for 36 a priori selected potential predictors.

RESULTS

The mean (SD) age of the study population was 84 (8) years, 85% were women, and 51% had moderate to severe cognitive impairment. Predictors associated with a higher risk of hip fracture despite bisphosphonate use included age 75 years or older to 85 years (vs ≥65 to <75 y; HR = 1.25; 95% CI = 1.02-1.55), female sex (HR = 1.33; 95% CI = 1.06-1.67), white race (vs black race (HR = 1.87; 95% CI = 1.36-2.58), and body mass index = 18.5-24.9 (vs ≥30; HR = 1.93; 95% CI = 1.53-2.42). Independent ability to transfer (vs total dependence; HR = 3.11; 95% CI = 1.83-5.30) and occasional urinary incontinence (vs frequent; HR = 1.45; 95% CI = 1.18-1.78) were also important predictors. Dementia, diabetes, psychoactive drug use, and other characteristics were not associated with post-prescribing hip fracture. Predictors did not differ between bisphosphonate and calcitonin users.

CONCLUSION

Predictors of hip fracture among frail older adults did not differ between those who were new users of bisphosphonates vs calcitonin. Given the absence of risk factors unique to bisphosphonate users, targeting of fracture prevention efforts should extend beyond pharmacologic therapy to include existing nonpharmacologic therapies, particularly fall prevention strategies. J Am Geriatr Soc 68:256-260, 2020.

Influenza Illness and Hip Fracture Hospitalizations in Nursing Home Residents: Are They Related?

Background

Influenza illness may impact the risk of falls and fractures during acute illness due to unsteady gait or dizziness. We evaluated the association between influenza and hip fracture hospitalizations in long-stay (LS) nursing home (NH) residents.

Methods

We analyzed weekly rates of hospitalization in a retrospective cohort of LS NH residents between January 1, 2000 to December 31, 2009. Hip fracture and influenza like illness (ILI) hospitalizations were identified with Medicare fee-for-service part A claims. We evaluated unadjusted and adjusted models with the primary exposures, weekly rate of influenza-like illness hospitalizations, city-wide mortality, and NH influenza vaccination rate and primary outcome of weekly rate of hip fracture hospitalizations.

Results

There were 9,237 incident hip fractures in the cohort. Facility wide ILI hospitalization rate was associated with the hip fracture hospitalization rate in the unadjusted (incidence rate ratio [IRR] 1.13, 95% confidence interval [CI]: 1.08, 1.17) and adjusted (IRR 1.13, 95% CI: 1.09, 1.18) analyses. City-wide influenza mortality was associated with hip fracture hospitalization rates for the unadjusted (IRR 1.03, 95% CI: 1.02, 1.04), and adjusted (IRR 1.02, 95% CI: 1.01, 1.03) analyses. NH influenza vaccination rates were not associated with changes in hip fracture hospitalization rates.

Conclusions

ILI hospitalizations are associated with a 13% average increase in hip fracture hospitalization risk. In a given NH week, an increase in the number ILI hospitalizations from none to two was associated with an approximate one percentage point increase in hip fracture hospitalization risk. Strategies to reduce influenza risk should be investigated to reduce hip fracture risk.

Incidence of hip fracture in Native American residents of U.S. nursing homes

OBJECTIVES

To compare the standardized incidence rates (IRs) of hip fracture for Native Americans versus other racial groups in U.S. nursing homes (NHs).

METHODS

We studied Medicare fee-for-service NH residents aged ≥65 years who became long-stay (index date) between 1/1/2008 and 12/31/2009 (n = 1,136,544). Residents were followed from the index date until occurrence of hip fracture, death, Medicare disenrollment, or study end (12/31/2013). We calculated hip fracture IRs by race and used inverse probability weighting to standardize the rates for baseline demographic and clinical characteristics collected from the Minimum Data Set and Medicare claims data. We compared characteristics of NHs used by residents of different races using Online Survey, Certification and Reporting (OSCAR) data.

RESULTS

Among long-stay U.S. NH residents, the standardized IR of hip fracture per 100 person-years was highest in Native Americans [2.16; 95% confidence interval (CI) 1.91-2.44] and white residents (2.05; 2.03-2.06), and lowest in black residents (0.82; 0.79-0.85). NHs caring for Native American residents were more likely to be rurally located as compared to other racial group.

CONCLUSIONS

In U.S. NHs, Native Americans and whites have the highest standardized IR of hip fracture and should receive particular attention in fracture prevention efforts.

Fracture Risk Assessment in Long-term Care (FRAiL): Development and Validation of a Prediction Model

Background

Strategies used to predict fracture in community-dwellers may not be useful in the nursing home (NH). Our objective was to develop and validate a model (Fracture Risk Assessment in Long-term Care [FRAiL]) to predict the 2-year risk of hip fracture in NH residents using readily available clinical characteristics.

Methods

The derivation cohort consisted of 419,668 residents between May 1, 2007 and April 30, 2008 in fee-for service Medicare. Hip fractures were identified using Part A diagnostic codes. Resident characteristics were obtained using the Minimum Data Set and Part D claims. Multivariable competing risk regression was used to model 2-year risk of hip fracture. We validated the model in a remaining 1/3 sample (n = 209,834) and in a separate cohort in 2011 (n = 858,636).

Results

Mean age was 84 years (range 65-113 years) and 74.5% were female. During 1.8 years mean follow-up, 14,553 residents (3.5%) experienced a hip fracture. Fifteen characteristics in the final model were associated with an increased risk of hip fracture including dementia severity, ability to transfer and walk independently, prior falls, wandering, and diabetes. In the derivation sample, the concordance index was 0.69 in men and 0.71 in women. Calibration was excellent. Results were similar in the internal and external validation samples.

Conclusions

The FRAiL model was developed specifically to identify NH residents at greatest risk for hip fracture, and it identifies a different pattern of risk factors compared with community models. This practical model could be used to screen NH residents for fracture risk and to target intervention strategies.

Risk factors for hip fracture in New Zealand older adults seeking home care services: a national population cross-sectional study

BACKGROUND

Hip fractures are a common injury in older people. Many studies worldwide have identified various risk factors for hip fracture. However, risk factors for hip fracture have not been studied extensively in New Zealand. The interRAI home care assessment consists of 236 health questions and some of these may be related to hip fracture risk.

METHODS

The cohort consisted of 45,046 home care clients aged 65 years and older, in New Zealand. Assessments ranged from September 2012 to October 2015. Hip fracture diagnosis was identified by linking ICD (International Classification of Diseases) codes from hospital admissions data (September 2012 to December 2015) to the interRAI home care data. Unadjusted and adjusted competing risk regressions, using the Fine and Gray method were used to identify risk factors for hip fracture. Mortality was the competing event.

RESULTS

The cohort consisted of 61% female with a mean age of 82.7 years. A total of 3010 (6.7%) of the cohort sustained a hip fracture after assessment. After adjusting for sociodemographic and potentially confounding variables falls (SHR (Subhazard Ratio) = 1.17, 95% CI (Confidence interval): 1.05-1.31), previous hip fracture (SHR = 4.16, 95% CI: 2.93-5.89), female gender (SHR = 1.38, 95% CI: 1.22-1.55), underweight (SHR = 1.67, 95% CI = 1.39-2.02), tobacco use (SHR = 1.56, 95% CI = 1.25-1.96), Parkinson's disease (SHR = 1.45, 95% CI: 1.14-1.84), and Wandering (SHR = 1.36, 95% CI: 1.07-1.72) were identified as risk factors for hip fracture. Shortness of breath (SHR = 0.80, 95% CI: 0.71-0.90), was identified as being protective against hip fracture risk. Males and females had different significant risk factors.

CONCLUSIONS

Risk factors for hip fracture similar to international work on risk factors for hip fracture, can be identified using the New Zealand version of the interRAI home care assessment.

Comparison of hospitalised trends, treatment cost and health outcomes of fall-related hip fracture for people aged ≥ 65 years living in residential aged care and the community

This study compared hip fracture rates and health outcomes of older people living in residential aged care facilities (RACFs) to the community. The RACF resident age-standardised hospitalisation rate was five times higher than the community rate and declining. RACF residents experience overall worse health outcomes and survival post-hip fracture.

INTRODUCTION

To compare hospitalisation trends, characteristics and health outcomes following a fall-related hip fracture of older people living in residential aged care facilities (RACFs) to older people living in the community.

METHODS

A retrospective analysis of fall-related hip fracture hospitalisations of people aged ≥ 65 years during 1 July 2008 and 30 June 2013 in New South Wales (NSW), Australia's largest populated state. Linked hospitalisation, RACF and Aged Care Assessment Appraisal data collections were examined. Negative binomial regression examined the significance of hospitalisation temporal trends.

RESULTS

There were 28,897 hip fracture hospitalisations. One-third were of older people living in RACFs. The hospitalisation rate was 2180 per 100,000 (95%CI: 2097.0-2263.7) for RACF residents and 390 per 100,000 (95%CI 384.8-395.8) for older people living in the community. The hospitalisation rate for RACF residents was estimated to decline by 2.9% annually (95%CI: - 4.3 to - 1.5). Hospital treatment cost for hip fractures was AUD$958.5 million. Compared to older people living in the community, a higher proportion of RACF residents were aged ≥ 90 years (36.1% vs 17.2%), were female (75.3% vs 71.8%), had > 1 Charlson comorbidity (37.6% vs 35.6%) and 58.2% had dementia (vs 14.4%). RACF residents had fewer in-hospital rehabilitation episodes (18.7% vs 60.9%) and a higher proportion of unplanned readmissions (10.6% vs 9.1%) and in-hospital mortality (5.9% vs 3.3%) compared to older people living in the community.

CONCLUSIONS

RACF residents are a vulnerable cohort of older people who experience worse health outcomes and survival post-hip fracture than older people living in the community. Whether access to individualised hip fracture rehabilitation for RACF residents could improve their health outcomes should be examined.

Effect of Bisphosphonates on Fracture Outcomes Among Frail Older Adults

BACKGROUND

Bisphosphonates are seldom used in frail, older adults, in part due to lack of direct evidence of efficacy in this population and increasing concerns about safety.

OBJECTIVE

We estimated the effects of bisphosphonates on hip fractures, nonvertebral fractures, and severe esophagitis among frail, older adults.

DESIGN

Population-based retrospective cohort using 2008 to 2013 linked national Minimum Data Set assessments; Online Survey Certification and Reporting System records; and Medicare claims.

SETTING

US nursing homes (NHs).

PARTICIPANTS

Long-stay NH residents 65 years and older without recent osteoporosis medication use (N = 24,571). Bisphosphonate initiators were 1:1 propensity score matched to calcitonin initiators (active comparator).

MEASUREMENTS

Hospitalized hip fracture, nonvertebral fracture, and esophagitis outcomes were measured using part A claims. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated, controlling for over 100 baseline characteristics.

RESULTS

The matched cohort included 5209 new bisphosphonate users and an equal number of calcitonin users (mean age [SD] = 85 [8] years; 87% female; 52% moderate-severe cognitive impairment). Over a mean follow-up of 2.5 (SD = 1.7) years, 568 residents (5.5%) had a hip fracture, 874 (8.4%) had a nonvertebral fracture, and 199 (1.9%) had a hospitalized esophagitis event. Users of bisphosphonates were less likely than calcitonin users to experience hip fracture (HR = 0.83; 95% CI = 0.71-0.98), with an average gain in time without fracture of 28.4 days (95% CI = 6.0-50.8 days). Bisphosphonate and calcitonin users had similar rates of nonvertebral fracture (HR = 0.91; 95% CI = 0.80-1.03) and esophagitis events (HR = 1.11; 95% CI = 0.84-1.47). The effects of bisphosphonates on fractures and esophagitis were generally homogeneous across subgroups, including those defined by age, sex, history of prior fracture, and baseline fracture risk.

CONCLUSIONS

Use of bisphosphonates is associated with a meaningful reduction in hip fracture among frail, older adults, but little difference in nonvertebral fracture or severe esophagitis. J Am Geriatr Soc 67:768-776, 2019.

Commonly Initiated Opioids and Risk of Fracture Hospitalizations in United States Nursing Homes

OBJECTIVES

The aim of this study was to estimate the comparative safety of initiating commonly used opioids among older, long-stay United States nursing home residents with fracture hospitalizations.

METHODS

We conducted a new-user retrospective cohort study of nursing home residents initiating short-acting oxycodone, hydrocodone, or tramadol by merging the 2011-2013 Minimum Data Set 3.0 to Medicare hospitalization and pharmacy claims. Residents (≥ 65 years, no cancer or hospice use) contributed treatment episodes (> 120 days with no prior opioid claims) and were followed for 180 days until incident fracture hospitalization (hip, femur, humerus, pelvis, radius/ulna), death (competing risk), treatment changes (e.g., discontinuation), or administrative censoring. Competing risks models with inverse probability of treatment weighting were used to estimate subdistribution hazard ratios (HR_SD) and 95% confidence intervals (CI).

RESULTS

Overall, 110,862 residents contributed 134,432 treatment episodes: 14,373 oxycodone; 69,182 hydrocodone; and 50,877 tramadol initiators. The incidences of fracture hospitalizations per 100 person-years were 9.4 (95% CI 7.5-11.7) for oxycodone, 7.9 (95% CI 7.1-8.8) for hydrocodone, and 5.0 (95% CI 4.3-5.7) for tramadol initiators. In weighted models, oxycodone initiators had a similar rate of fractures to hydrocodone initiators (HR_SD 1.08, 95% CI 0.79-1.48). Tramadol initiators had lower fracture rates than hydrocodone initiators (HR_SD 0.67, 95% CI 0.56-0.80).

CONCLUSIONS

The lower rate of fractures that we documented among tramadol initiators compared with hydrocodone initiators is consistent, albeit attenuated compared with prior studies among community-dwelling older adults. However, overall fracture rates were lower than in community settings, potentially due to the limited risk of falling in this population with limited mobility.

Outcomes of "diabetes-friendly" vs "diabetes-unfriendly" β-blockers in older nursing home residents with diabetes after acute myocardial infarction

AIMS

To assess whether nursing home (NH) residents with type 2 diabetes mellitus (T2D) preferentially received "T2D-friendly" (vs "T2D-unfriendly") β-blockers after acute myocardial infarction (AMI), and to evaluate the comparative effects of the two groups of β-blockers.

MATERIALS AND METHODS

This new-user retrospective cohort study of NH residents with AMI from May 2007 to March 2010 used national data from the Minimum Data Set and Medicare system. T2D-friendly β-blockers were those hypothesized to increase peripheral glucose uptake through vasodilation: carvedilol, nebivolol and labetalol. Primary outcomes were hospitalizations for hypoglycaemia and hyperglycaemia in the 90 days after AMI. Secondary outcomes were functional decline, death, all-cause re-hospitalization and fracture hospitalization. We compared outcomes using binomial and multinomial logistic regression models after propensity score matching.

RESULTS

Of 2855 NH residents with T2D, 29% initiated a T2D-friendly β-blocker vs 24% of 6098 without T2D (P < 0.001). For primary outcomes among residents with T2D, T2D-friendly vs T2D-unfriendly β-blockers were associated with a reduction in hospitalized hyperglycaemia (odds ratio [OR] 0.45, 95% confidence interval [CI] 0.21-0.97), but unassociated with hypoglycaemia (OR 2.05, 95% CI 0.82-5.10). For secondary outcomes, T2D-friendly β-blockers were associated with a greater rate of re-hospitalization (OR 1.26, 95% CI 1.01-1.57), but not death (OR 1.06, 95% CI 0.85-1.32), functional decline (OR 0.91, 95% CI 0.70-1.19), or fracture (OR 1.69, 95% CI 0.40-7.08).

CONCLUSIONS

In older NH residents with T2D, T2D-friendly β-blocker use was associated with a lower rate of hospitalization for hyperglycaemia, but a higher rate of all-cause re-hospitalization.

Cost-effectiveness of single-dose zoledronic acid for nursing home residents with osteoporosis in the USA

OBJECTIVE

To evaluate the cost-effectiveness of routine administration of single-dose zoledronic acid for nursing home residents with osteoporosis in the USA.

DESIGN

Markov cohort simulation model based on published literature from a healthcare sector perspective over a lifetime horizon.

SETTING

Nursing homes.

PARTICIPANTS

A hypothetical cohort of nursing home residents aged 85 years with osteoporosis.

INTERVENTIONS

Two strategies were compared: (1) a single intravenous dose of zoledronic acid 5 mg and (2) usual care (supplementation of calcium and vitamin D only).

PRIMARY AND SECONDARY OUTCOME MEASURES

Incremental cost-effectiveness ratio (ICER), as measured by cost per quality-adjusted life year (QALY) gained.

RESULTS

Compared with usual care, zoledronic acid had an ICER of $207 400 per QALY gained and was not cost-effective at a conventional willingness-to-pay threshold of $100 000 per QALY gained. The results were robust to a reasonable range of assumptions about incidence, mortality, quality-of-life effects and the cost of hip fracture and the cost of zoledronic acid. Zoledronic acid had a potential to become cost-effective if a fracture risk reduction with zoledronic acid was higher than 23% or if 6-month mortality in nursing home residents was lower than 16%. Probabilistic sensitivity analysis showed that the zoledronic acid would be cost-effective in 14%, 27% and 44% of simulations at willingness-to-pay thresholds of $50 000, $100 000 or $200 000 per QALY gained, respectively.

CONCLUSIONS

Routine administration of single-dose zoledronic acid in nursing home residents with osteoporosis is not a cost-effective use of resources in the USA but could be justifiable in those with a favourable life expectancy.

Analysis of kyphosis, vertebral fracture and bone mineral density measurement in women living in nursing homes

OBJECTIVES

To analyze the relationship between vertebral fracture, degree of kyphosis, and BMD in women living in nursing homes.

METHODS

This cross-sectional study was carried out in the Department of Physical Medicine and Rehabilitation, Hitit University Hospital, Corum, Turkey, betweenJanuary 2014 and January 2015. Of the 126 female patients who participated in the study, 48 lived in nursing homes (nursing-home-group [NHG]), 78 lived in non-nursing home settings (control-group [CG]). Vertebral fractures were evaluated via the semi-quantitative Genant method. Cases in which a Cobb angle measured 40 degrees or more resulted in a diagnosis of kyphosis.

RESULTS

The mean age of participants in the NHG was 77.2±7.6 years and 76.8±6.2 years in the CG (p greater than 0.05). The kyphosis rate in the NHG was found to be higher at 52.1% compared to 27.7% for the CG (p less than 0.001). In the NHG, 68.7% had osteoporosis, 31.3% had osteopenia; in the CG, 55.2% had osteoporosis, 32% had osteopenia, 12.8% had normal values (p less than 0.05).The vertebral fracture rate was 37.5% in the NHG and 24.3% in the CG (p greater than 0.05). The Cobb angle had correlation with the number of fractures in both groups (p less than 0.05).

CONCLUSIONS

The osteoporosis and kyphosis rates of women living in NHG were higher than those of women living in CG. As kyphosis and the number of fractures are correlated, it is important to analyze kyphosis in women residing in NHG.

Association of Clinical Outcomes With Surgical Repair of Hip Fracture vs Nonsurgical Management in Nursing Home Residents With Advanced Dementia

IMPORTANCE

The decision whether to surgically repair a hip fracture in nursing home (NH) residents with advanced dementia can be challenging.

OBJECTIVE

To compare outcomes, including survival, among NH residents with advanced dementia and hip fracture according to whether they underwent surgical hip fracture repair.

DESIGN, SETTING, AND PARTICIPANTS

We conducted a retrospective cohort study of 3083 NH residents with advanced dementia and hip fracture, but not enrolled in hospice care, using nationwide Medicare claims data linked with Minimum Data Set (MDS) assessments from January 1, 2008, through December 31, 2013.

METHODS

Residents with advanced dementia were identified using the MDS. Medicare claims were used to identify hip fracture and to determine whether the fracture was managed surgically. Survival between surgical and nonsurgical residents was compared using multivariable Cox proportional hazards with inverse probability of treatment weighting (IPTW). All analyses took place between November 2015 and January 2018. Among 6-month survivors, documented pain, antipsychotic drug use, physical restraint use, pressure ulcers, and ambulatory status were compared between surgical and nonsurgical groups.

RESULTS

Among 3083 residents with advanced dementia and hip fracture (mean age, 84.2 years; 79.2% female [n = 2441], 28.5% ambulatory [n = 879]), 2615 (84.8%) underwent surgical repair. By 6-month follow-up, 31.5% (n = 824) and 53.8% (n = 252) of surgically and nonsurgically managed residents died, respectively. After IPTW modeling, surgically managed residents were less likely to die than residents without surgery (adjusted hazard ratio [aHR], 0.88; 95% CI, 0.79-0.98). Among 2007 residents who survived 6 months, residents with surgical vs nonsurgical management had less docmented pain (29.0% [n = 465] vs 30.9% [n = 59]) and fewer pressure ulcers (11.2% [n = 200] vs 19.0% [n = 41]). In IPTW models, surgically managed residents reported less pain (aHR, 0.78; 95% CI, 0.61-0.99) and pressure ulcers (aHR, 0.64; 95% CI, 0.47-0.86). There was no difference between antipsychotic drug use and physical restraint use between the groups. Few survivors remained ambulatory (10.7% [n = 55] of surgically managed vs 4.8% [n = 1] without surgery).

CONCLUSIONS AND RELEVANCE

Surgical repair of a hip fracture was associated with lower mortality among NH residents with advanced dementia and should be considered together with the residents' goals of care in management decisions. Pain and other adverse outcomes were common regardless of surgical management, suggesting the need for broad improvements in the quality of care provided to NH residents with advanced dementia and hip fracture.

Epidemiology of hip fracture in nursing home residents with multiple sclerosis

BACKGROUND

Hip fracture risk is high in young people with multiple sclerosis (MS), but has not been examined in an institutionalized aging population with MS.

OBJECTIVE

We aimed to compare the hip fracture risk in nursing home (NH) residents with and without MS; and (2) examine risk factors for hip fracture in those with MS.

METHODS

We conducted a retrospective cohort study using national NH clinical assessment and Medicare claims data. Participants included age-, sex- and race-matched NH residents with/without MS (2007-2008). Multivariable competing risk regression was used to compare 2-year hip fracture risk, and to examine risk factors.

RESULTS

A total of 5692 NH residents with MS were matched to 28,460 without MS. Approximately 80% of residents with MS vs. 50% of those without MS required extensive assistance in walking at NH admission. The adjusted incidence rate of hip fracture was 7.1 and 18.6 per 1000 person-years in those with or without MS, respectively. Wandering and anxiolytic exposure were the main hip fracture risk factors in transfer independent residents with MS; while pneumonia and antidepressant use were the main factors in dependent residents with MS.

CONCLUSIONS

In contrast to prior comparisons from non-NH populations, the incidence of hip fracture was lower in NH residents with MS as compared with matched controls. Residents with MS were much more functionally dependent, which likely explains these findings. Fracture prevention strategies should focus on fall prevention in independent residents; and possibly improvement of health status and facility quality of care in dependent residents.

Facility and State Variation in Hip Fracture in U.S. Nursing Home Residents

OBJECTIVES

To quantify the variation in hip fracture incidence across U.S. nursing home (NH) facilities and states and examine how hip fracture incidence varies according to facility- and state-level characteristics.

DESIGN

Retrospective cohort using linked national Minimum Data Set assessments; Online Survey, Certification and Reporting records; and Medicare claims.

SETTING

U.S. NHs with 100 or more beds.

PARTICIPANTS

Long-stay NH residents between May 1, 2007, and April 30, 2008, from 1,481 facilities and 46 U.S. states (N = 201,892).

MEASUREMENTS

Incident hip fractures were ascertained using Medicare Part A diagnostic codes. Each resident was followed for up to 2 years.

RESULTS

The mean adjusted incidence rate of hip fractures for all facilities was 3.13 (95% confidence interval (CI) = 3.01-3.26) per 100 person-years (range 1.20, 95% CI = 1.15-1.26 to 6.40, 95% CI = 6.07-6.77). Facilities with the highest rates of hip fracture had greater percentages of residents taking psychoactive medications (top tertile 27.2%, bottom tertile 24.8%), and fewer nursing (top tertile 3.43, bottom tertile 3.53) and direct care (top tertile 3.22, bottom tertile 3.29) hours per day per resident. The combination of state and facility characteristics explained 6.7% of the variation in hip fracture, and resident characteristics explained 7.6%.

CONCLUSION

Much of the variation in hip fracture incidence remained unexplained, although these findings indicate that potentially modifiable state and facility characteristics such as psychoactive drug prescribing and minimum staffing requirements could be addressed to help reduce the rate of hip fracture in U.S. NHs.

Incidence Rates of and Mortality after Hip Fracture among German Nursing Home Residents

Little is known about hip fracture rates and post-fracture mortality among nursing home residents. This retrospective cohort study examined incidence rates (IR) of and mortality after hip fracture in this population focusing on sex differences. A cohort of >127,000 residents ≥65 years, newly admitted to German nursing homes between 2010 and 2014 were used to calculate age-, sex-, care-need- and time after admission-specific IR. To determine mortality, the Kaplan-Meier-method was applied. Using Cox regression, we studied mortality and estimated time-dependent hazard ratios (HRs). For this purpose, to each person with a hip fracture, one resident without a hip fracture was matched by sex, age and care-need using risk-set sampling. 75% were women (mean age: 84.0 years). During 168,588 person-years (PY), 8537 residents with at least one hip fracture were observed. The IR for women and men were 52.9 and 42.5/1000 PY. For both sexes, IR increased with rising age and decreased with increasing care-level. IR were highest in the first months after admission and subsequently declined afterwards. The impact of hip fractures on mortality was time-dependent. Mortality of residents with hip fracture was highest in the first two months after fracture compared to those without (HR): 2.82; 95% CI 2.57–3.11) and after six months, no differences were found (HR: 1.10; 95% CI 0.98–1.22) Further research should always include analyses stratified by sex, age and time period after admission.

Pain Treatments After Hip Fracture Among Older Nursing Home Residents

OBJECTIVES

To examine the association between use of opioids versus other analgesics with death and functioning after hip fracture in older nursing home (NH) residents.

DESIGN

Retrospective cohort using national Medicare fee-for-service claims linked to the Minimum Data Set.

SETTING

US NHs.

PARTICIPANTS

NH residents aged ≥65 years who became a long-stay resident (>100 days in the NH) between January 2008 and December 2009, had a hospitalized hip fracture, and returned to the NH.

EXPOSURE

New use of opioid versus nonopioid analgesics (acetaminophen or nonsteroidal anti-inflammatory drugs) within 14 days post hip fracture.

MEASUREMENTS

Follow-up began on the index date and continued until the first occurrence of death, significant functional decline (3-point increase on MDS Activities of Daily Living scale), or 120 days of follow-up. Odds ratios (ORs) with 95% confidence intervals (CIs) for outcomes were estimated using inverse probability of treatment-weighted multinomial logistic regression models.

RESULTS

Among the 2755 NH residents with a hip fracture included in our study, 1155 (41.9%) were opioid users, and 1600 (58.1%) were nonopioid analgesic users. The mean age was 86.3 years, 73.8% were female, and 86.0% were white. Opioid use was associated with a significantly lower likelihood of death (OR = 0.47, 95% CI 0.39-0.56) and a nonsignificant decrease in functional decline (OR = 0.77, 95% CI 0.58-1.03).

CONCLUSION

A rigorous study that addresses the limitations of this study is critical to validate our preliminary findings and provide evidence about the effect of using opioid versus nonopioid analgesics to optimize acute pain in NH residents with a hip fracture.

Defining hip fracture with claims data: outpatient and provider claims matter

Medicare claims are commonly used to identify hip fractures, but there is no universally accepted definition. We found that a definition using inpatient claims identified fewer fractures than a definition including outpatient and provider claims. Few additional fractures were identified by including inconsistent diagnostic and procedural codes at contiguous sites.

INTRODUCTION

Medicare claims data is commonly used in research studies to identify hip fractures, but there is no universally accepted definition of fracture. Our purpose was to describe potential misclassification when hip fractures are defined using Medicare Part A (inpatient) claims without considering Part B (outpatient and provider) claims and when inconsistent diagnostic and procedural codes occur at contiguous fracture sites (e.g., femoral shaft or pelvic).

METHODS

Participants included all long-stay nursing home residents enrolled in Medicare Parts A and B fee-for-service between 1/1/2008 and 12/31/2009 with follow-up through 12/31/2011. We compared the number of hip fractures identified using only Part A claims to (1) Part A plus Part B claims and (2) Part A and Part B claims plus discordant codes at contiguous fracture sites.

RESULTS

Among 1,257,279 long-stay residents, 40,932 (3.2%) met the definition of hip fracture using Part A claims, and 41,687 residents (3.3%) met the definition using Part B claims. 4566 hip fractures identified using Part B claims would not have been captured using Part A claims. An additional 227 hip fractures were identified after considering contiguous fracture sites.

CONCLUSIONS

When ascertaining hip fractures, a definition using outpatient and provider claims identified 11% more fractures than a definition with only inpatient claims. Future studies should publish their definition of fracture and specify if diagnostic codes from contiguous fracture sites were used.

A prospective study about the preoperative total blood loss in older people with hip fracture

Purpose

Our study is to confirm that hemoglobin (Hb) level is significantly reduced before operation in elderly patients with hip fracture and to specify potential amounts of bleeding and Hb decline in different types of fractures.

Methods

A prospective analysis was made on the clinical data of 349 patients with both a diagnosis of hip fracture and an operative delay of greater than 72 hours between April 2014 and February 2016. Hb concentration was measured on a daily basis before the surgery. Patients were grouped according to the type of fracture (intracapsular and extracapsular) for calculation of the total blood loss (TBL). All data analyses were done by SPSS version 21 software.

Results

There was a significant decrease preoperatively in the Hb concentration of nearly 21.55 g/L (standard error of the mean [SEM] 7.67) in patients with extracapsular hip fractures and nearly 15.63 g/L (SEM 6.01) in patients with intracapsular hip fractures. The preoperative TBL in patients with extracapsular fracture was significantly larger compared to that in patients with intracapsular fracture (790.3 mL and 581.7 mL, respectively, P<0.05 using Student’s t-test). We found no significant difference in the preoperative TBL between the male and female groups.

Conclusion

Hip fracture patients have an obvious blood loss after the injury, yet prior to the surgery the Hb levels were found to be normal. Anesthetic and orthopedic staff should pay additional attention to the problem of low preoperative Hb concentration, even if the initial Hb level was apparently normal.

Geographic Variation in Hip Fracture Among United States Long-Stay Nursing Home Residents

INTRODUCTION

Despite high rates of hip fracture among United States (US) nursing home (NH) residents, little is known about geographic variation in hip fracture incidence. We used nationally representative data to identify geographic variation in hip fracture among US NH residents.

DESIGN AND SETTING

Retrospective cohort study using Part A claims for a 100% of Medicare enrollees in 15,289 NHs linked to NH minimum data set and Online Survey, Certification, and Reporting databases.

PARTICIPANTS

A total of 891,085 long-stay (continuous residence of ≥100 days) NH residents ≥65 years old.

MEASUREMENTS

Medicare Part A claims documenting a hip fracture. Mean incidence rates of hip fracture for long-stay NH residents were calculated for each state and US Census Division from 2007 to 2010.

RESULTS

The age-, sex-, and race-adjusted incidence rate of hip fracture ranged from 1.49 hip fractures/100 person-years (Hawaii) to 3.60 hip fractures/100 person-years (New Mexico), with a mean of 2.38 (standard deviation 0.43) hip fractures/100 person-years. The mean incidence of hip fracture was 1.7-fold greater in the highest quintile than the lowest.

CONCLUSIONS

We observed modest US state and regional variation in hip fracture incidence among long-stay NH residents. Future studies should assess whether state policies or NH characteristics explain the variation.