Results: Between baseline and 6-month follow-up, 47% of children (mean change = -0.37, SD = 2.48) and 63% of parents (mean change = -0.88, SD = 3.53) decreased their BMI. Parent-child dyad BMI change was significantly correlated (r = .53, P = .001). In linear modeling, those preadolescents in the control group were more likely to lose absolute BMI units (-0.96, P = .03); whereas those who had parents who gained BMI over the time interval were more likely to increase their BMI (0.17, P = .008).

Conclusions: Obesity interventions should focus on the parent-child dyad.

Identify the following;

1. Population;
2. the sample;
3. the sample size;
4. the variables of interest;
5. State the Descriptive Statistics used in this research (i.e. mean, standard deviation ...)