Table 2. Changes in parental body mass index of the parents of 664 children included in obesity treatment.

	Mothers				Fathers
	N	% of total	Delta-BMI, kg/m2	p a	N	% of total	Delta-BMI, kg/m2	p a
All	606	100	-0.5 (-0.8;-0.2)	0.0006	479	100	-0.4 (-0.6;-0.2)	0.0007
Normal weight	183	30	0.8 (0.5;1.1)	<0.0001	96	20	0.6 (0.3;0.8)	0.0001
Overweight	195	32	-0.4 (-0.7;-0.0)	0.04	191	40	-0.4 (-0.6;-0.1)	0.01
Obese	228	38	-1.7 (-2.3;-1.0)	<0.0001	192	40	-0.9 (-1.4;-0.5)	0.0001

Data are given as means with 95% confidence intervals unless stated otherwise.

Normal weight: BMI below 25 kg/m². Overweight: BMI equal to or above 25 kg/m² but below 30 kg/m². Obese: BMI equal to or above 30 kg/m²

^a Paired t-test was used to calculate the p-values.