Table 2

Change from Baseline in Weight and Minutes of Moderate and Vigorous Physical Activity per Week Over 24 Months

Study VisitWeight, Average (95% CI), kgPhysical Activity, Average (95% CI), min/wk
EI GroupSI GroupEI GroupSI Group
Baseline103.8 (99.8 to 107.8)102.8 (98.8 to 106.8)20.6 (0.0 to 44.4)23.0 (0.0 to 46.7)
6 Mo−5.0 (−6.4 to −3.5)−3.4 (−4.9 to −1.9)95.7 (71.9 to 119.4)67.9 (44.2 to 91.6)
12 Mo−5.4 (−6.9 to −3.9)−3.8 (−5.3 to −2.3)126.1 (102.3 to 149.8)73.3 (49.6 to 97.0)
18 Mo−4.4 (−5.9 to −2.9)−4.3 (−5.8 to −2.8)103.6 (80.0 to 127.5)63.3 (39.6 to 87.0)
24 Mo−4.1 (−5.6 to −2.6)−4.0 (−5.5 to −2.5)101.3 (77.6 to 127.4)75.0 (51.3 to 98.7)
Group by Visit Interaction
F ratioF3,620 = 3.17a; P = .02F4,832 = 2.49b; P = .04
  • EI = enhanced intervention; SI = standard intervention.

  • Note: Weight at baseline is actual weight; weights at 6, 12, 18, and 24 months are weight changes from baseline.

  • a Interaction F statistic for change in weight; model adjusted for age, sex, and race/ethnicity.

  • b Interaction F statistic for physical activity minutes; model adjusted for age, sex, and race/ethnicity.