Association Between Cognitive Impairment and Repeat Fractures in Medicare Beneficiaries Recently Hospitalized for Hip Fracture.

Abstract

Repeat fractures contribute substantially to fracture incidents in older adults. We examined the association between cognitive impairment and re-fractures during the first 90days after older adults with hip fractures were discharged home from a skilled nursing facility rehabilitation short stay. Multilevel binary logistic regression was used to analyze 100% of U.S.national postacute-care fee-for-service Medicare beneficiaries who had a hospital admission for hip fracture from January 1, 2018, to July 31, 2018; were admitted for a skilled nursing facility stay within 30days of hospital discharge; and were discharged to the community after a short stay. Our primary outcome was rehospitalization for any re-fractures within 90days of skilled nursing facility discharge. Cognitive status assessed at skilled nursing facility admission or before discharge was classified as either intact or having mild or moderate/severe impairment. In 29558 beneficiaries with hip fracture, odds of any re-fracture were higher in those with minor (odds ratio: 1.48; 95% confidence interval: 1.19-1.85; p < .01) and moderate/major cognitive impairment (odds ratio: 1.42; 95% confidence interval: 1.07-1.89; p=.0149) than in those classified as intact. Beneficiaries with cognitive impairment were more likely than their counterparts with no cognitive impairment to experience re-fractures. Community-dwelling older adults with minor cognitive impairment may experience a higher likelihood of experiencing a repeat fracture leading to rehospitalization.