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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: J Telemed Telecare. 2013 Jun 14;19(5):266–272. doi: 10.1177/1357633X13490901

Table 4.

Physical activity change from randomization to 9-month follow-up

Value at randomization Change, randomization to 9-month follow-up
Intervention
Median
(25th, 75th
percentile)
n=40
Control
Median
(25th, 75th
percentile)
n=40
Intervention
Median
(25th, 75th
percentile)
Control
Median
(25th, 75th
percentile)
Difference
between
groups
P-valuea
MVPAb, min/day 45.7 (31.8, 88.6) 57.9 (29.3, 128.6) −6.6 (−26.4, 9.3) −11.4 (−47.9, 16.8) 0.49
Walking, min/day 21.4 (10.0, 32.1) 17.1 (6.8, 60.0) −5.0 –(17.9, 2.9) 0.7 (−15.7, 19.3) 0.17
Moderate activity, min/day 7.9 (2.5, 14.6) 8.6 (3.2, 30.0) 0.0 (−6.1, 10.0) −3.6 (−17.1, 0.4) 0.01
Vigorous activity, min/day 17.1 (5.0, 25.7) 15.0 (5.7, 34.3) −4.3 (−17.1, 0.0) −6.4 (−21.4, 12.1) 0.76
Sitting on weekday, min/day 360 (240, 450) 240 (120, 390) 60 (−120, 135) 0 (−120, 75) 0.36
a

From Wilcoxon rank sum test. Only participants with complete physical activity data at baseline, randomization, and 9-month follow-up were included in the analysis.

b

Moderate to vigorous physical activity, sum of time spent walking or in moderate or vigorous activity.