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Table 3 Sedentary time, prolonged sedentary bouts and physical activity for office (n=127), call centre (n=31) and customer service (n=23) employees during work hour a

From: Prolonged sedentary time and physical activity in workplace and non-work contexts: a cross-sectional study of office, customer service and call centre employees

  Adjusted mean (95% CI) p
  Office Call centre Customer service  
Number of work days 525 124 98  
Mean wear time (hrs) 8.8 8.2 7.5  
Mean work time (hrs) 8.9 8.2 7.5  
% of worn time spent b     
All sedentary 75.8 (74.5, 77.1) 83.4 (81.3, 85.2) † 73.7 (70.2, 76.8) ‡ <.0001
 Prolonged sedentary, ≥20 min bouts 33.4 (30.8, 36.0) 42.5 (36.8, 48.2) † 20.6 (14.5, 26.7) †‡ <0.001
 Prolonged sedentary, ≥30 min bouts 21.4 (19.0, 23.7) 29.7 (24.6, 34.7) † 9.6 (4.3, 15.0) †‡ <0.001
Light -intensity physical activity 20.6 (19.5, 21.8) 15.3 (13.6, 17.3) † 24.4 (21.5, 27.8) †‡ <.0001
Moderate-vigorous physical activity 2.4 (1.9, 2.8) 0.7 (0.4, 0.9) † 1.3 (0.8, 1.7) †‡ <.0001
  1. † Different to office employees (p<0.05) ‡ Different to call centre employees (p<0.05).
  2. a Table of marginal means (95% CI) from linear mixed models that account for repeated measures and adjust for age (years), gender, BMI (overweight or obese: yes/no), marital status (married or defacto: yes/no), education (post school qualification: yes/no). Data were excluded for days with <75% of time at work unobserved (n=20 days) and for participants without self-reported covariate data (n=13 participants).
  3. b Marginal means (95% CI) back-transformed for percentage worn time spent (sedentary [inverse log], in prolonged sedentary bouts of ≥20 minutes or ≥30 minutes, in light-intensity activity [log], and in MVPA (log of [MVPA % +0.001].