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Table 2 Sedentary behaviour outcomes for education only (EG) and prompt and education groups (PG) at three measurement points

From: A randomised feasibility study to investigate the impact of education and the addition of prompts on the sedentary behaviour of office workers

Time point Baseline Intervention Follow-up
Group EG (n = 8) PG(n = 8) EG (n = 9) PG(n = 8) EG (n = 8) PG (n = 8)
Total sitting all daysa [%] 62.7 ± 8.9 60.9 ± 3.7 60.4 ± 9.0 62.3 ± 12.0 62.9 ± 12.3 60.1 ± 8.2
Difference between groups: mean (95% CI) 1.8 (− 5.5, 9.1) − 1.9 (− 12.2, 9.0) 2.8 (− 8.4, 14.0)
Effect size 0.264 − 0.180 0.268
Total sitting work hoursb [%] 78.7 ± 11.8 71.8 ± 22.0 72.2 ± 15.0 69.4 ± 17.2 77.1 ± 11.7 70.0 ± 17.8
Difference between groups: mean (95% CI) 6.8 (− 12.7, 25.8) 2.8 (− 13.9, 19.4) 7.1 (− 9.0, 23.1)
Effect size 0.387 0.172 0.472
Sitting events per hour at workb [number] 3.2 ± 1.1 3.8 ± 1.3 3.9 ± 1.5 4.2 ± 1.9 3.6 ± 1.5 4.0 ± 1.5
Difference between groups: mean (95% CI) − 0.6 (−1.9, 0.63) − 0.3 (− 2.0, 1.5) − 0.4 (− 1.9, 1.2)
Effect size − 0.543 − 0.168 − 0.240
Mean sitting event duration work hoursb [mins] 16.4 ± 5.2 12.5 ± 5.7 12.4 ± 4.9 11.6 ± 5.5 15.3 ± 7.9 12.6 ± 6.6
Difference between groups: mean (95% CI) 4.0 (− 1.9 2, 9.9) 0.9 (− 4.47, 6.2) 2.7 (− 5.11, 10.4)
Effect size 0.722 0.168 0.368
Time in event > 20 min work hoursb [%] 53.2 ± 15.0 45.6 ± 23.2 40.4 ± 21.0 39.6 ± 23.0 47.6 ± 23.0 43.0 ± 26.5
Difference between groups: mean (95% CI) 7.6 (− 13.4, 28.5) 0.8 (− 21.8, 23.5) 4.6 (22.1, 31.2)
Effect size 0.389 0.039 0.184
Time in event > 30 min work hoursb [%] 39.8 ± 13.4 32.2 ± 21.8 27.8 ± 20.0 28.0 ± 21.5 33.1 ± 23.6 33.6 ± 24.7
Difference between groups: mean (95% CI) 7.6 (− 11.8, 26.9) − 0.2 (− 21.6, 21.2) − 0.5 (26.4, 25.4)
Effect size 0.419 − 0.008 − 0.021
  1. Data displayed in each cell are as follows: mean ± standard deviation were calculated using data on amount of time the activPAL was worn during waking hoursa and working hoursb
  2. Mean difference between groups is calculated as EG-PG (95% CI = 95% confidence intervals of the difference between group means), and effect sizes are calculated using Cohen’s d
  3. EG education only group, PG prompt and education group