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Table 3 Difference (95% CI) in parents’ accelerometer-derived outcomes at months 6 and 12a

From: Leveraging family dynamics to increase the effectiveness of incentives for physical activity: the FIT-FAM randomized controlled trial

  Difference from Baseline, by Study Arm Between-arm Comparisons
Child-Based Incentive
(n = 159)
Family-Based Incentive
(n = 157)
Family-Based Incentive vs Child-Based Incentive
MONTH 6
 Steps/day −379 (−778, 19) 234 (− 157, 624) 613* (54, 1171)
 MVPAb, min/day − 0.2 (− 4.4, 3.9) 2.8 (− 0.7, 6.2) 3.0 (− 2.4, 8.4)
 MVPAb bouts, min/day 0.0 (− 3.2, 3.1) 3.5* (0.5, 6.5) 3.5 (− 0.8, 7.9)
 Sedentary behavior, min/day 8.6 (−7.7, 25.0) 12.9 (−4.1, 29.8) 4.2 (− 19.3, 27.7)
 Light physical activity, min/day −12.9 (− 27.4, 1.7) −15.8** (− 27.2, − 4.3) −2.9 (− 21.4, 15.6)
 Moderate physical activity, min/day 0.2 (− 3.5, 4.0) 2.4 (− 0.8, 5.5) 2.1 (− 2.8, 7.0)
 Vigorous physical activity, min/day − 0.5 (− 1.3, 0.4) 0.4 (− 0.7, 1.5) 0.9 (− 0.5, 2.2)
 Total volume of physical activityc, min/day − 13.1 (− 28.9, 2.7) −13.0* (− 25.1, − 0.9) − 0.1 (− 19.8, 20.0)
MONTH 12
 Steps/day −208 (− 620, 203) 160 (− 219, 539) 369 (−191, 928)
 MVPAb, min/ day 0.7 (−3.6, 5.1) 2.9 (− 0.5, 6.3) 2.2 (− 3.4, 7.7)
 MVPAb bouts, min/day 0.6 (− 2.6, 3.8) 2.4 (− 0.3, 5.2) 1.8 (− 2.4, 6.1)
 Sedentary behavior, min/day 11.8 (−6.6, 30.3) 13.2 (− 6.7, 33.2) 1.4 (− 25.7, 28.5)
 Light physical activity, min/ day −14.5* (− 28.7, − 0.2) − 16.5** (− 28.8, − 4.3) −2.1 (− 20.9, 16.7)
 Moderate physical activity, min/day 0.8 (−3.1, 4.7) 2.1 (−1.0, 5.2) 1.3 (− 3.7, 6.3)
 Vigorous physical activity, min/day 0.01 (−1.0, 1.0) 0.8 (− 0.1, 1.6) 0.8 (− 0.5, 2.1)
 Total volume of physical activityc, min/day − 13.7 (− 28.4, 1.1) − 13.6* (− 26.5, − 0.8) 0.0 (− 19.6, 19.6)
  1. a Unadjusted for wear time since wear time was comparable across arms b MVPA is moderate-to-vigorous physical activity c Total volume of physical activity is the sum of light, moderate, and vigorous physical activity minutes Note: * p < 0.05, ** p < 0.01, *** p < 0.001