1. From the Departments of Health Behavior and Health Education,
2. Epidemiology, and2Department of Ophthalmology and Visual Sciences, School of Medicine, University of Michigan, Ann Arbor, Michigan; and the
3. Biostatistics, School of Public Health, and the
4. Department of Wellness, Health Promotion, and Injury Prevention, School of Health Sciences, Oakland University, Rochester, Michigan.
5. From the Departments of Health Behavior and Health Education,2Department of Ophthalmology and Visual Sciences, School of Medicine, University of Michigan, Ann Arbor, Michigan; and the