mental health National Center for Biotechnology Information NCBI NLM MEDLINE Health Care humans pubmed abstract nih national institutes of health national library of medicine logistic models research support u.s. gov't male Forecasting aged middle aged Comorbidity Comparative Study Prospective Studies P.H.S. risk factors follow-up studies Activities of Daily Living outcome assessment pneumonia hospitalization hospitals odds ratio health status analysis of variance hospital units smoking / adverse effects drug-related side effects and adverse reactions veterans m s terpenning nursing homes ambulatory care oral health eating / physiology deglutition / physiology enteral nutrition / adverse effects pmid:9513300 doi:10.1007/pl00009559 s e langmore w j loesche deglutition disorders / complications* dental care for aged dental caries / complications esophagus / physiology oropharynx / physiology aspiration / etiology*