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Table 4 Variance component analyses of sitting time, standing time, and time spent on moderate-to-vigorous physical activity (MVPA) per day as well as for total steps per day at work, in leisure time and in total (work and leisure time combined)

From: Intra-individual variability in day-to-day and month-to-month measurements of physical activity and sedentary behaviour at work and in leisure-time among Danish adults

Modela Constantb 95% CI RSDc ICCd Intra-individual variatione
work sit (min) 323 300–347 0.23 0.46 54%
work stand (min) 102 82–121 0.62 0.49 51%
work steps 3761 3211–4310 0.40 0.50 50%
work MVPA (min) 27 22–31 0.43 0.49 51%
leisure sit (min) 282 264–300 0.21 0.42 58%
leisure stand (min) 97 86–109 0.38 0.46 54%
leisure steps 5682 4919–6446 0.48 0.37 63%
leisure MVPA (min) 47 40–54 0.52 0.41 59%
total sit (min) 606 574–637 0.16 0.50 50%
total stand (min) 199 173–225 0.39 0.57 43%
total steps 9349 8357–10340 0.34 0.43 57%
total MVPA (min) 73 65–81 0.38 0.44 56%
  1. aMultilevel linear regression model with the activity of interest as dependent variable adjusted for sex, age, educational level and BMI
  2. bConstant representing mean value for a male participant aged 45 with tertiary education and a BMI below 25
  3. cRelative standard deviation = standard deviation/mean
  4. dInterclass correlation coefficient: part of total variance explained by difference between individuals
  5. ePercentage of total variance explained by variation within individual