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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