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Table 2 Physical activity outcomes

From: Effectiveness of the Walking in ScHools (WISH) Study, a peer-led walking intervention for adolescent girls: results of a cluster randomised controlled trial

Outcome

 

Intervention

Control

Between-group differences (1–0)d

 

Time

N (%)

Median (IQR)

N (%)

Median (IQR)

EMMa

95% CI

ICC

Total physical activity (cpm)

T0

248 (87)

695 (243)

287 (95)

673 (217)

   

T1

235 (82)

682 (261)

265 (88)

681 (273)

-22.5

-67.4 to 22.3

0.07

T2b

194 (68)

683 (299)

263 (87)

675 (268)

-33.5

-88.1 to 21.2

0.09

T3

201 (70)

608 (274)

254 (84)

626 (249)

7.5c

-28.5 to 43.6

0.05

MVPA (min/d)

T0

248 (87)

36.1 (23.0)

287 (95)

35.3 (19.8)

   

T1

235 (82)

36.6 (25.6)

265 (88)

38.2 (22.8)

-1.1

-5.6 to 3.4

0.07

T2b

194 (68)

38.6 (29.5)

263 (87)

36.8 (22.3)

-1.5

-6.6 to 3.6

0.08

T3

201 (70)

33.3 (25.1)

254 (84)

32.8 (22.2)

0.1

-6.3 to 6.5

0.17

Vigorous physical activity (min/d)

T0

248 (87)

8.4 (9.6)

287 (95)

8.5 (9.1)

   

T1

235 (82)

9.1 (11.9)

265 (88)

9.1 (11.3)

-0.8

-2.9 to 1.3

0.06

T2b

194 (68)

9.1 (12.0)

263 (87)

8.8 (10.0)

-0.6

-2.4 to 1.2

0.02

T3

201 (70)

6.8 (9.7)

254 (84)

7.4 (11.6)

-0.1

-2.8 to 2.7

0.12

Moderate physical activity (min/d)

T0

248 (87)

27.7 (15.1)

287 (95)

25.9 (12.5)

   

T1

235 (82)

27.6 (14.8)

265 (88)

25.9 (15.0)

-0.2

-3.2 to 2.8

0.08

T2b

194 (68)

28.1 (16.4)

263 (87)

26.5 (12.3)

-0.8

-4.6 to 3.0

0.11

T3

201 (70)

24.5 (14.4)

254 (84)

24.6 (13.7)

0.1

-3.8 to 4.1

0.14

Light physical activity (min/d)

T0

248 (87)

191 (55)

287 (95)

187 (60)

   

T1

235 (82)

176 (54)

265 (88)

185 (59)

-8.6

-16.9 to -0.3

0.02

T2b

194 (68)

174 (60)

263 (87)

185 (66)

-8.6

-21.6 to 4.4

0.07

T3

201 (70)

167 (54)

254 (84)

171 (54)

1.6

-10.3 to 13.5

0.09

Sedentary behaviour (min/day)

T0

248 (87)

539 (81)

287 (95)

544 (101)

   

T1

235 (82)

534 (91)

265 (88)

542 (112)

-3.3c

-10.6 to 17.2

0.02

T2b

194 (68)

548 (104)

263 (87)

547 (119)

1.4

-19.4 to 22.1

0.05

T3

201 (70)

545 (96)

254 (84)

554 (89)

-5.5

-23.9 to 13.0

0.05

  1. IQR Interquartile range, CI Confidence interval, ICC Intraclass Correlation Coefficient, EMM Estimated marginal means, MVPA Moderate-to-vigorous physical activity, T0 Baseline, T1 Mid-intervention, T2 End of intervention, T3 12-month follow-up
  2. aEstimated marginal means at each timepoint were adjusted for baseline measure of the outcome (e.g., total physical activity in cpm) at baseline, BMI z-score, and baseline age
  3. bPrimary outcome
  4. cRobust linear mixed model analysis estimates reported
  5. dComplete case analysis for T0-T2: n435 pupils overall (n179 intervention group; n256 control group); T0-T1: n471 pupils overall (n212 intervention group; n259 control group); T0-T3: n439 pupils overall (n190 intervention group; n249 control group)
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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