Skip to main content

Table 2 Changes in relative weight and weight-related behaviors from the school year (baseline) to midsummer among children randomized to attend a daily summer camp or to experience summer as usual (SAU)

From: Testing the effect of summer camp on excess summer weight gain in youth from low-income households: a randomized controlled trial

  SAU CAMP Group Difference
(effect estimate; p-value)
Change in BMI z-score (BMIz) (n = 44 in SAU; n = 43 in CAMP)
 Schoola 1.25 + 0.17 1.43 + 0.18  
 Mid-Summera 1.34 + 0.19 1.41 + 0.19
 Changeb + 0.07 + 0.03 −0.03 + 0.03 b = 0.10; p = .07
Change in percent time spent in Moderate to Vigorous Activity (n = 33 in SAU; n = 36 in CAMP)
 Schoola 9.7 + 0.6% 9.4 + 0.6%  
 Mid-Summera 8.1 + 0.8% 7.5 + 0.8%
 Changeb −1.9 + 0.7% 2.3 + 0.7% b = 0.40; p = .65
Change in percent time spent Sedentary (n = 33 in SAU; n = 36 in CAMP)
 Schoola 61.8 + 1.1% 62.3 + 1.2%  
 Mid-Summera 65.9 + 1.7% 66.8 + 1.8%
 Changeb + 4.7 + 1.6% + 5.3 + 1.7% b = − 0.64; p = .75
Change in Energy Intake (n = 40 in SAU; n = 35 in CAMP)
 Schoola 1495.9 + 91.6 1519.1 + 98.0  
 Mid-Summera 1682.8 + 165.4 1464.3 + 171.0
 Changeb + 247.8 + 130.4 −52.5 + 135.4 b = 300.3; p = .07
Change in Dietary Quality (HEI-2015 total score) (n = 40 in SAU; n = 35 in CAMP)
 Schoola 47.9 + 2.0 46.9 + 2.2  
 Mid-Summera 48.6 + 1.9 48.5 + 1.8
 Changeb + 0.49 + 1.8 + 0.12 + 1.9 b = 0.4; p = .87
  1. aAdjusted means from linear mixed model adjusted for clustering by family and controlling for year, age and race/ethnicity
  2. bAdjusted means from linear mixed model adjusted for clustering by family and controlling for year, age, race/ethnicity and baseline values