Predictors of effectiveness of a tailored behaviour change programme with multiple delivery modes

Abstract

Background. The aim of the present study was to determine the predictors of surfing depth and changes in weekly physical activity and daily fat intake after 6 months. Methods. 208 highly educated adults received access to a website (with tailored feedback) and individual coaching. Website logs and linear regression analyses were used. Results. Positive changes were found for physical activity and fat intake. Surfing depth (visiting deeper laying pages of the website) was predicted by individual coaching and not being in line with the norm for sports (p<.001;p<.05). An increase of physical activity and a decrease of fat intake were predicted by online tailored feedback (p<.01;p<.05). Individual coaching for nutrition was effective in reducing fat intake (p<.05). Conclusion. Online tailored feedback for physical activity was effective in changing both behaviours; individual coaching was more important for nutrition, independent of the delivery mode (telephone, e-mail, face-to-face).