Impact of a facility-based corporate fitness program on the number of absences from work due to illness.

This study examined the relationship between participation in a facility-based fitness program and the number of reported absences from work due to illness. Employees who became members had a history of fewer absences before the program began in 1987 than employees who did not become members. Comparing 1988 with 1986, members experienced a significant decrease in absences, whereas nonmembers did not. Male and female members experienced 0.42 and 1.0 fewer days absent in 1988 than in 1986, respectively. Controlling for gender and previous absences, members could be expected to have 1.2 fewer absences in 1988 than nonmembers. On average, those who participated most frequently experienced the greatest improvement in attendance. A significant interaction between participation and 1986 absences indicated that a member's decrease in absences depended both on how many absences the member had to begin with, and how much he or she participated. Members having a high number of absences in 1986 could expect the greatest benefit from frequent participation.