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Effectiveness of a Web-based Intervention Aimed at Healthy Dietary and Physical Activity Behavior: A Randomized Controlled Trial About Users and Usage

Effectiveness of a Web-based Intervention Aimed at Healthy Dietary and Physical Activity Behavior: A Randomized Controlled Trial About Users and Usage

The model showed that increased age and not having a chronic condition increased the odds of having used the application (Cox & Snell R 2 = .24, Nagelkerke R 2 = .32, Model χ2 18 = 34.15, P = .01). Logistic regression model to predict usage of the HWA Furthermore, we performed a linear regression to investigate whether satisfaction with the intervention HWA predicted the number of logins (Table 6).

Saskia M. Kelders, Julia E.W.C. Van Gemert-Pijnen, Andrea Werkman, Nicol Nijland, Erwin R. Seydel

J Med Internet Res 2011;13(2):e32