Demographic, Behavioral, and Psychosocial Correlates of Using the Website Component of a Worksite Physical Activity and Healthy Nutrition Promotion Program: A Longitudinal Study

Suzan JW Robroek   ^{1 †} , MSc ;   Wendy Brouwer   ^{1 †} , MSc ;   Dennis Lindeboom   ^{2 †} , MSc ;   Anke Oenema   ^{1 †} , PhD ;   Alex Burdorf   ^{1 †} , PhD

¹ Department of Public Health, Erasmus MC, University Medical Center, Rotterdam, Netherlands

² Lifeguard Inc, Utrecht, Netherlands