Table 5.

Average 2-year change in BMI in relation to baseline fruit juice and milk sub-types (per daily serving) in Growing Up Today Study II participants, stratified by baseline weight status (2004–2008)

	Boys						Girls
Beverages	Normal weight (n=4,082 observations)			Obese/overweight (n=1,434 observations)			Normal weight (n=5,844 observations)			Obese/overweight (n=1,249 observations)
	β	SE	P	β	SE	P	β	SE	P	β	SE	P
Orange juice	0.079	0.057	0.169	−0.207	0.182	0.255	−0.105	0.054	0.052	−0.388	0.206	0.060
Other fruit juice	−0.073	0.063	0.247	0.019	0.199	0.924	−0.047	0.059	0.420	−0.154	0.215	0.472
Low fat milk1	0.002	0.024	0.941	0.000	0.062	1.000	0.006	0.019	0.753	0.009	0.078	0.906
High fat milk2	−0.012	0.028	0.666	0.004	0.096	0.965	−0.016	0.024	0.501	0.081	0.115	0.480

¹Includes skim and 1% milk.

²Includes whole and 2% milk. Weight status was classified among participants with complete BMI data using cutoffs defined by the U.S. Centers for Disease Control and Prevention (normal: 5^th≤BMI percentile<85; overweight/obese: BMI percentile≥85^th). Standard error was calculated from participants with complete BMI only. Baseline intake of fruit juice and milk were included simultaneously in a multiple mixed regression model with 2-year BMI change as the outcome. Adjusted for race, age, baseline BMI, baseline and 2-year change in total energy intake, and baseline and 2-year change in physical activity. Significance testing assesses whether the beverages contribute to 2-year change in BMI.

Abbreviations: BMI: body mass index.