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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)