Table 3.

Adjusted odds ratios of overweight/obese (BMI $\ge 85\text{th}$ percentile) at 11 years of age given number of times BMI $\ge 85\text{th}$ percentile or BMI $\ge 50\text{th}$ percentile during preschool, early elementary or late elementary years

Age/BMI	Adjusted OR	95% CI	P-value
Preschool (2–4 years)
BMI $\ge 85th$ percentile
Two or more times	10.58	5.25, 21.32	<0.001
One time	2.12	1.10, 4.09	0.024
BMI $\ge 50th$ percentile
Two or more times	4.82	2.48, 9.37	<0.001
One time	1.31	0.51, 3.37	0.570
Early elementary (5–7 years)
BMI $\ge 85th$ percentile
Two or more times	71.65	30.94, 165.96	<0.001
One time	5.56	2.70, 11.47	<0.001
BMI $\ge 50th$ percentile
Two or more times	17.78	8.27, 38.23	<0.001
One time	0.61	0.15, 2.57	0.505
Late elementary (8–10 years)
BMI $\ge 85th$ percentile
Two or more times	351.05	126.26, 976.07	<0.001
One time	25.82	9.97, 66.87	<0.001
BMI $\ge 50th$ percentile
Two or more times	292.82	36.53, 2347.06	<0.001
One time	5.21	0.44, 61.65	0.190

Abbreviations: BMI, body mass index; CI, confidence interval; OR, odds ratio. Note: Odds ratios account for clustering of children with site and are adjusted for gender, maternal race and education, maternal weight before delivery, SGA, preterm, cocaine, opiate, tobacco, alcohol, marijuana, breast fed at 1 month, birth weight, hours of TV watching at ages 7 and 11, hours of exercise at age 7, days spent doing active games or sports at age 11 and sugar and caloric intake at age 11.