Table 1.

 Change in body mass index (BMI), centile SD scores (z scores), and waist SD scores (z scores) at 12 months and 3 years after baseline

	Control	Intervention	Mean difference (95% CI), P value
BMI*
Baseline (n=486)	17.5 (2.36)	17.2 (2.14)	0.24 (−0.16 to 0.64), P=0.24
After 12 months (n=474)	18.3 (2.85)	17.8 (2.45)	0.59 (0.11 to 1.06), P=0.02
After 3 years (n=434)	19.7 (3.36)	19.0 (3.21)	0.68 (0.06 to 1.30), P=0.03
Change in BMI from baseline†
After 12 months (n=455)	0.71 (1.45)	0.62 (0.79)	0.10 (−0.11 to 0.31), P=0.36
After 3 years (n=418)	2.14 (1.64)	1.88 (1.71)	0.26 (−0.07 to 0.58), P=0.12
Centile z score (SD score)*
Baseline (n=486)	0.53 (0.98)	0.44 (0.98)	0.08 (−0.09 to 0.26), P=0.36
After 12 months (n=474)	0.63 (1.07)	0.44 (1.01)	0.20 (0.01 to 0.38), P=0.04
After 3 years (n=434)	0.63 (1.12)	0.39 (1.17)	0.24 (0.02 to 0.46), P=0.03
Change in centile z score (SD score)† from baseline
After 12 months (n=455)	0.05 (0.57)	0.03 (0.30)	0.02 (−0.06 to 0.11), P=0.60
After 3 years‡ (n=418)	0.10 (0.53)	−0.01 (0.58)	0.10 (−0.00 to 0.21), P=0.06
Waist circumference z score (SD score)*
Baseline (n=486)	0.85 (0.94)	0.83 (0.91)	0.03 (−0.14 to 0.19), P=0.76
After 12 months (n=474)	0.99 (0.93)	0.88 (0.87)	0.11 (−0.05 to 0.27), P=0.19
After 3 years (n=434)	0.96 (1.22)	0.80 (1.07)	0.15 (−0.06 to 0.37), P=0.17
Change in waist circumference z score (SD score) from baseline†
After 12 months (n=455)	0.08 (0.64)	0.08 (0.47)	0.01 (−0.09 to 0.12), P=0.81
After 3 years (n=418)	0.099 (0.99)	0.01 (0.66)	0.09 (−0.06 to 0.26), P=0.25

*Based on maximum number of children in each cluster.

†Based on children with data at baseline and 12 months or 3 years.

‡Primary outcome.