Impact of physical activity on hospitalization in older adults: a nationwide cohort from Taiwan.

The aim of the present study was to explore the effect of baseline physical activity on hospitalization over one year in a representative sample of older adults in Taiwan. We conducted a prospective study of persons aged 65 and above (N = 2064) participating in the National Health Interview Survey in Taiwan, 2001. A total of 1521 participants had complete data on physical activity and were successfully linked to 2002 National Health Insurance claims data.