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Table 1 Physical activity over time stratified by treatment arm

From: Objectively-assessed physical activity and weight change in young adults: a randomized controlled trial

  

Assessment Periods

p-values

 

Treatment Group

Baseline Mean ± Std dev

Median (IQR)

BL – 4 mo changea

BL – 1 year changea

BL – 2 year changea

Treatment Group

Time

Treatment Group x Time

Daily Steps

Control

8866 ± 3146

8267

(6674, 10,872)

342

(−42, 727)

−135

(−537, 268)

−179

(−635, 277)

0.7434

0.0118*

0.2976

Small Change

8450 ± 2997

8032

(6337, 9933)

139

(−253, 531)

221

(−198, 641)

−71

(−534, 392)

Large Change

8622 ± 3051

8383

(6366, 10,513)

260

(−138, 658)

−258

(−668, 153)

−205

(−668, 259)

Bout-related MVPA (min/week)

Control

260.4 ± 254.7

177.6

(88.0, 352.3)

54.5

(20.1, 89.0)

12.2

(−26.4, 50.8)

20.8

(−26.7, 68.3)

0.6604

0.0442*

0.1569

Small Change

253.4 ± 246.6

180.0

(85.8, 329.0)

37.8

(2.8, 72.8)

43.9

(3.8, 84.1)

24.0

(−23.8, 71.8)

Large Change

276.5 ± 237.8

211.4

(84.0, 400.0)

66.5

(30.8, 102.1)

11.2

(−28.0, 50.4)

63.6

(15.4111.7)

Weight (kg)

Control

71.4 ± 10.2

70.7

(63.6, 78.1)

−0.8

(−1.2, −0.3)

−0.4

(−1.0, 0.3)

0.7

(0.0, 1.4)

<0.0001**

<0.0001**

0.0160*

Small Change

71.9 ± 11.0

70.0

(63.6, 79.5)

−1.6

(−2.0, −1.1)

−1.4

(−2.0,-0.7)

−1.0

(−1.8, −0.3)

Large Change

70.8 ± 11.0

69.2

(63.4, 76.4)

−3.5

(−3.9, −3.0)

−2.5

(−3.1, −1.9)

−1.6

(−2.3, −0.8)

  1. aLeast Square Means (95% confidence interval); Steps and MVPA models adjust for clinic, gender, race, armband wear time, and baseline value of outcome measure. Weight model adjusts for clinic, gender, race, and baseline weight. Adjusted change values are presented. Boldface indicates statistical significance (*p < 0.05, **p < 0.001)