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Table 3 Change in physical activity levels between first and second trimesters (median, interquartile range)

From: Objectively measured physical activity during pregnancy: a study in obese and overweight women

  First trimester Second trimester Change first-second trimester p value
Accelerometry data:   Change in physical activity levels between first and second trimesters n = 26*   
Total recorded time (mins/day) 780 (725, 838) 742 (693, 800) -44 (-91.4, 9.3) 0.018
Sedentary time (mins/day) 631 (570, 673) 585 (524, 637) -25 (-84, 12.4) 0.023
Light activity (mins/day) 122 (95, 152) 122 (101, 154) -9 min (-17.2, 12.0) 0.304
MVPA (mins/day) 36 (26, 66) 33 (27, 52) -2 min (-8.9,+1.8) 0.269
Counts per minute 262 (199, 384) 259 (226, 338) 3 (-40.6, 34.8) 0.909
30+ mins/day MVPA (number)(%) 17 (65%) 16 (62%) -  
RPAQ data:   n = 26*   
Total (METhrs/day) 26.4 (23.0, 29.0) 25.7 (22.8, 29.1) -0.35 (-2.12, 1.28) 0.638
Home (METhrs/day) 16.4 (13.1, 20.5) 17.2 (13.0, 19.7) 0.29 (-1.41, 1.77) 0.990
Transport (METhrs/day) 0.25 (0.11, 0.66) 0.21 (0.07, 0.76) 0 (-0.07, 0.10) 0.906
Work (METhrs/day) 8.3 (5.7, 11.3) 8.0 (5.6, 10.1) 0 (-2.06, 0.04) 0.037
Recreational (METhrs/day) 0.71 (0.0, 1.25) 0.88 (0.28, 2.21) 0.36 (-0.37, 1.58) 0.055
  1. *Paired analysis of those participating in first and second trimester data collection
  2. Recent Physical Activity Questionnaire[30]