Comorbid Conditions Among Adults 50 Years and Older With Traumatic Brain Injury: Examining Associations With Demographics, Healthcare Utilization, Institutionalization, and 1-Year Outcomes.
Raj G Kumar, Jennifer Olsen, Shannon B Juengst and 4 others
PMID 30829819WHAT IT FOUND
Older adults with TBI and acute hospital complications had longer stays and higher rehospitalization rates.
Those with chronic disease burdens also faced higher rehospitalization risks. Substance abuse clusters were linked to institutionalization but not 1-year functional outcomes. These patterns highlight distinct risk profiles for discharge planning.
Key findings
01Higher weight in the acute hospital complications cluster was associated with longer acute and rehabilitation stays, longer post-traumatic amnesia, and lower functional improvement efficiency.
02Both acute complications and chronic disease clusters were associated with increased odds of rehospitalization within one year post-injury.
03The substance abuse cluster was associated with increased odds of post-rehabilitation institutionalization and longer post-traumatic amnesia, but also better functional improvement efficiency.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The TBIMS cohort is under-representative of patients over age 65, limiting generalizability to the oldest adults. Sicker individuals with high chronic disease burdens may not have survived to enroll in the study, potentially underestimating the impact of this cluster. Comorbidity data relied on ICD-9 codes from medical records, which may not capture the full clinical picture or severity. The study design is observational and cannot establish causality between comorbidity clusters and outcomes.
Declared interests
The study was supported by the National Institute on Disability Independent Living and Rehabilitation Research (NIDILRR). No specific financial conflicts of interest for the authors were declared in the provided text.
The easy way to misread this
Do not interpret the shorter hospital stays associated with the chronic disease cluster as evidence of better health or recovery. This finding likely reflects a referral or survival bias where sicker patients did not enter the rehabilitation system, and these patients still had higher rates of rehospitalization.