Using the Health and Retirement Study linked to Medicare claims for 2000 to 2019, researchers examined 4,527 discharges to the community after short rehabilitative stays (under 100 days) in a skilled nursing home. There were 714 readmissions within 30 days (15.8%), and 42.2% of the population had a dementia diagnosis in claims.
Dementia was not associated with readmission. Female sex, being married and living in the Midwest or Western United States went with lower odds. Hospital or emergency visits in the year before the nursing home admission and higher Charlson comorbidity scores went with higher odds.
The authors suggest a dementia diagnosis could still prompt enhanced discharge support, and that prior hospital use, comorbidity and social support are the factors discharge planners should respond to. The data are American Medicare claims and may not carry to Indian care settings, where post-acute rehabilitation is organised differently.
- 15.8% were readmitted within 30 days of discharge home.
- A dementia diagnosis was not associated with readmission.
- Prior hospital or emergency visits and higher comorbidity raised the odds.
- Being married and female sex were linked to lower odds.
- Build discharge plans around prior utilisation, comorbidity and who is at home.
Why it matters
It challenges the assumption that dementia is the main driver of readmission after rehabilitation.
Don't overread it
Associations from US claims data cannot show that targeting prior utilisation or comorbidity would prevent readmissions.
The statistics, in plain English
Not associated with readmission means the study found no detectable difference, not that dementia is harmless. Claims-based dementia diagnoses miss many people with undiagnosed dementia, which could blur any real difference.
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