Deriving a Model of the Necessity to Hospitalize Nursing Home Residents

Abstract

Although often important to recover from acute medical problems and exacerbations of chronic illness, hospitalizations can be traumatic for nursing home residents and costly for payers. It is important that unnecessary hospitalizations are avoided wherever possible. The authors derived and validated a diagnosis-based model to estimate the clinical necessity of hospitalizing nursing home residents with common conditions using data from an expert panel survey. Model validation involved a linked minimum data set—hospitalization claims data set. The expert panel of 12 experienced geriatricians rated the necessity of hospitalization for 1,948 clinical scenarios containing diagnoses, cognitive and functional status, age, gender, and advance directives. Primary diagnoses with the highest average necessity scores were respiratory failure, acute myocardial infarction, hip fracture, and brain injury. The secondary diagnosis-primary diagnosis interaction with the greatest impact was gastrointestinal bleed on gastroenteritis. Poor cognitive function and presence of an advance directive lowered the risk of hospitalization.