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Table 4 Intention-to-treat analyses for school-day physical activity

From: Promoting physical activity among adolescent girls: the Girls in Sport group randomized trial

 

Baselinea

Follow-upa

Estimate of effect (95%CI)

Time

P values

Intervention

Control

Intervention

Control

Group

Interaction

(n = 630)

(n = 601)

(n = 416)

(n = 332)

Total PA (TPA), Mean (SD)

96.85 (38.93)

98.43 (47.50)

96.83 (44.38)

93.74 (37.12)

1.49 (-13.64, 16.64)

0.6060

0.7445

0.9668

Percentage time sedentary activity, Mean (SD)

63.44 (8.38)

63.53 (9.05)

67.28 (7.59)

67.69 (7.02)

-0.76 (-3.62, 2.10)

<0.0001

0.8819

0.5375

Percentage time light activity, Mean (SD)

31.69 (7.35)

31.36 (7.77)

28.64 (6.67)

28.68 (6.34)

0.21 (-1.77, 2.20)

<0.0001

0.7681

0.9706

Percentage time moderate activity, Mean (SD)

4.52 (2.21)

4.62 (2.47)

3.80 (2.23)

3.37 (1.70)

0.34 (-0.84, 1.52)

0.0002

0.8054

0.5746

Percentage time vigorous activity, Mean (SD)

0.35 (0.46)

0.50 (0.87)

0.29 (0.50)

0.26 (0.39)

0.13 (-0.09, 0.35)

0.0019

0.5580

0.2237

Percentage time moderate-to-vigorous activity, Mean (SD)

4.87 (2.48)

5.12 (2.83)

4.09 (2.48)

3.63 (1.88)

0.46 (-0.93, 1.84)

<0.0001

0.8863

0.5329

  1. Linear mixed models; aunadjusted means and SD