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Table 4 Data collected for proposed outcome data

From: A feasibility study of ‘The StepSmart Challenge’ to promote physical activity in adolescents

OutcomeT0 (Baseline)T1 (22 weeks)T2 (52 weeks)
InterventionControlInterventionControlInterventionControl
Accelerometer outcomesn = 126, median (IQR)n = 64, median (IQR)n = 126, median (IQR)n = 64, median (IQR)n = 126, median (IQR)n = 64, median (IQR)
 MVPA (min/day)33.3 (23.6–49.0)43.6 (31.0–69.3)33.0 (20.0–46.2)47.4 (32.7–65.1)33.4 (19.2–49.2)37.2 (26.5–53.1)
 Light intensity PA (min/day)336.1 (232.4–435.6)306.2 (237.0–422.6)225.4 (175.2–283.2)236.1 (183.2–295.1)201.0 (167.6–256.0)189.5 (145.6–241.8)
 Moderate intensity PA (min/day)27.1 (18.2–37.7)35.1 (25.2–49.8)25.8 (17.1–33.2)33.4 (25.4–44.2)25.0 (16.2–34.8)29.1 (21.7–38.6)
 Vigorous intensity PA (min/day)6.6 (3.0–11.9)8.6 (3.3–18.7)6.2 (2.4–11.8)12.2 (5.6–19.8)5.9 (2.0–13.0)7.4 (4.5–13.8)
 Daily sedentary time (min/day)469.6 (416.5–524.3)466.3 (410.0–534.9)454.7 (405.7–517.8)453.5 (399.8–529.6)461.9 (400.6–519.4)462.9 (399.2–531.3)
 Steps per day8019 (6549.6–9738.9)9160 (7485.5–11,975.5)8298 (6370.5–10,641.0)11,162 (7957.7–13,888.4)7064 (5620.3–9440.0)7856 (5847.1–12,473.8)
Wellbeingn = 139, mean (SD)n = 74, mean (SD)n = 124, mean (SD)n = 71, mean (SD)n = 126, mean (SD)n = 69, mean (SD)
 WEMWBS51.8 (8.4)51.9 (8.3)50.0 (9.1)50.1 (10.9)51.1 (9.0)49.3 (10.4)
Strength and difficultiesn = 134, mean (SD)n = 22, mean (SD)n = 133, mean (SD)n = 35, mean (SD)n = 132, mean (SD)n = 81, mean (SD)
 SDQ4.7 (5.1)13.6 (8.1)4.1 (5.2)12.5 (6.9)6.5 (5.1)7.5 (9.0)
 Pro social sub scale8.5 (1.5)6.4 (2.8)8.8 (1.8)4.7 (2.9)8.4 (2.0)7.0 (2.7)
Perceived social supportn = 137, median (IQR)n = 75, median (IQR)n = 130, median (IQR)n = 67, median (IQR)n = 125, median (IQR)n = 66, median (IQR)
 Peer support3.3 (3.0–3.6)3.0 (2.6–3.6)3.0 (2.6–3.3)3.0 (2.6–3.3)3.0 (2.6–3.3)3.0 (2.3–3.3)
 Parental support2.6 (2.3–3.0)2.8 (2.3–3.0)2.6 (2.3–3.0)2.6 (2.3–3.0)2.6 (2.3–3.0)2.6 (2.3–3.0)
 Parental encouragement3.5 (3.0–4.0)3.5 (3.0–4.0)3.5 (3.0–4.0)3.5 (3.0–4.0)3.5 (3.0–4.0)3.0 (2.5–4.0)
 Teacher support2.3 (2.0–2.6)2.3 (1.7–2.6)2.3 (2.0–3.0)2.3 (1.6–3.0)2.3 (1.6–2.6)2.0 (1.6–2.6)
Time preferencesn = 122, median (IQR)n = 62, median (IQR)n = 119, median (IQR)n = 71, median (IQR)n = 123, median (IQR)n = 70, median (IQR)
 Planning horizon7.0 (6.0–8.0)7.0 (5.0–8.0)6.0 (6.0–8.0)6.0 (5.0–8.0)7.0 (5.0–8.0)7.0 (5.7–8.0)
 Impulsivity6.0 (5.0–8.0)6.0 (5.0–8.0)6.0 (5.0–7.0)5.0 (4.0–7.0)6.0 (5.0–7.0)6.0 (4.0–7.0)
  1. All other outcomes were non-normally distributed and presented as median and IQR. Exploratory analysis was conducted on the association between friendship within teams and physical activity, using R version 3.3.2 (The R Foundation for Statistical Computing., 2016). The accelerometer data was processed using the ActiGraph software package version 1.0.1 [11]. Feasibility studies are not designed to investigate the effectiveness of interventions [29]. Thus, no significance testing was conducted