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Table 2 Absolute differences between median parent-reported and accelerometer-measured child physical activity and sedentary time

From: Validation of parent-reported physical activity and sedentary time by accelerometry in young children

 

Parent-reported

Accelerometer-measured

Median

Min

Max

Median

Min

Max

Difference in median

p value*

Total physical activity (min/day)

90

0

381

221

27

366

131

<0.001

Daily sedentary time (min/day)

99

0

429

406

293

554

306

<0.001

  1. * p value from Wilcoxon signed-rank test