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Table 2 Mean subjective sedentary time and objective sedentary time by accelerometry and other accelerometry variables

From: Development of a questionnaire to assess sedentary time in older persons – a comparative study using accelerometry

  Weekday Mean (SD) Weekend day Mean (SD) p Average day aMean (SD)
Questionnaire     
Sedentary time (hours) 10.2 (3.8) 10.8 (3.5) 0.06 10.4 (3.5)
Accelerometry     
Valid days, n 5.4 (1.2) 2.1 (0.6) - 7.5 (1.5)
Mean wear time (hours) 15.3 (1.1) 14.9 (1.4) <0.01 15.1 (1.1)
Mean counts per minute 227.6 (145.4) 198.2 (111.8) <0.01 219.5 (130.7)
Sedentary time (hours) 10.1 (1.2) 10.3 (1.4) 0.08 10.2 (1.2)
Relative sedentary time (%) 66.4 (8.7) 69.6 (8.1) <0.01 67.3 (8.2)
  1. a Average day = (weekday*5 + weekend day*2)/7.