Factors associated with health care utilization by the elderly in a public health care system

The objective was to determine the factors associated with the use of health care services by the elderly residing in the community. A cross-sectional study on 787 elderly people over 64 years of age from Albacete City (Castilla-La Mancha, Spain). The study was carried out by personal home interviews during a 9-month period. The dependent variables were: health care utilization, and characteristics. The independent variables were: self-reported health status, self-reported morbidity, medication use, functional status, mental health, lifestyle habits, social support, and sociodemographic status. The health care services were used by 74.5% in the last 3 months of which 59.4% were general practitioner visits, 18.4% were to nursing staff, and 16.5% were specialist visits. Laboratory tests were performed in 39.2% and radiological examinations in 24.9%. Emergency visits accounted for 2.4%, and hospitalization, 2.9%. Users of health care services among the elderly population were objectively more ill, although there was a group of healthy individuals who also visited the physician and a large group of elderly with considerable health problems who never saw their physician. In the multivariate analysis, general practitioner utilization was independently associated with a perceived unmet need for care (OR = 3.15), a negative self-reported health status (OR = 2.51), and a lower educational level (OR = 2.41). Subjective factors as perceived need for care, a negative self-reported health status and lower educational level are important factors that influence in the utilization of health care services.