Table 2

The four kinds of regular evaluation feedback messages provided to all stakeholders by the smartphone mobile app on the basis of data from the regular monitoring of children’s weight, height and behaviours

Results automatically judged according to the heights and weights measured at the regular monitoring intervals
Positive results
(BMI decreases in students who are overweight or obese, or BMI increases in students who are underweight)
Negative results
(BMI increases in students who are overweight or obese, or BMI decreases in students who are underweight)
Results automatically judged according to the diet and physical activity behaviours recorded regularlyFull marks/getting betterFeedback 1: ‘Your child is doing a great job. The weight changes are consistent with the changes in the diet and physical activity behaviours. Keep it up!’Feedback 2: ‘Your child’s weight has not improved, but the diet and physical activity behaviours are good. It might be that weight improvement requires long-term adherence to a reasonable diet and physical activity behaviour, or that the behaviour records are inaccurate. Please continue to improve!’
Unchanged/getting worseFeedback 3: ‘Your child has improved or maintained a healthy body weight, but there is still room for improvement in the diet and physical activity behaviours. Keep working!’Feedback 4: ‘Your child’s weight has not improved, and the diet and physical activity behaviours also need improvement. Please continue to work hard!’
  • BMI, body mass index.