Effect of a group health education program in the workplace at the age of 35: a population approach.

Using a population approach, we investigated whether a group health education program exerted a preventive effect on checkup items at five years later. Workers turning 35 years old before the initial implementation of the program were entered in the control group (n = 422) and those turning 35 years on this date or after were entered in the intervention group (n = 206). These groups were compared using data obtained from routine health checkups at 35 and 40 years of age.

Symptoms related to glaucomatous visual field abnormalities among male Japanese workers in a population-based setting.

Purpose: To identify symptoms potentially related to glaucomatous visual field abnormalities (VFAs) in a population-based setting, and to assess the applicability of using these symptoms to identify persons at risk of developing glaucoma.

Methods: In this study, 10,214 Japanese male general workers (mean age, 45.3±8.