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Table 1 Baseline characteristics of the participants

From: The occupational sitting and physical activity questionnaire (OSPAQ): a validation study with accelerometer-assessed measures

Characteristics Total sample Physically active jobs Sedentary jobs Difference
Mean (SD) or % (n/N) Mean (SD) or % (n/N) Mean (SD) or % (n/N) P-value
Number of participants 401 83.6 (331/396) 16.4 (65/396)  
Sex (% women) 58.4 (234/401) 57.1 (189/331) 64.6 (42/65) 0.28
Age (years) 39.2 (11.0) 38.8 (11.2) 40.9 (10.3) 0.16
Educational level (%)     < 0.001
 Lowª 15.5 (62/401) 18.8 (59/331) 1.5 (1/65)  
 Mediumª 31.7 (127/401) 32.9 (109/331) 24.6 (16/65)  
 Highª 52.9 (212/401) 49.2 (163/331) 73.8 (48/65)  
Seniority (%)     0.03
 Up to 5 years 47 (188/400) 49.6 (164/331) 33.9 (22/65)  
  > 5 years 53 (212/400) 50.4 (167/331) 66.1 (43/65)  
Work schedule (%)     < 0.001
 Day work 41.6 (167/399) 35.6 (118/329) 72.3 (47/65)  
 Shift work 57.9 (232/399) 63.7 (211/329) 27.7 (18/65)  
Workhours per week 37.0 (6.57) 36.7 (6.31) 38.4 (7.70) 0.06
Current smokers (%)     0.04
 Yes 22.1 (310/398) 23.9 (79/331) 12.3 (8/65)  
 No 77.9 (88/398) 76.1 (252/331) 87.7 (57/65)  
BMI group (%)     0.42
 Underweight (BMI < 18.5) 1.2 (5/401) 1.5 (5/331) 0 (0/65)  
 Normal weight (BMI < 25) 57.1 (229/401) 56.2 (186/331) 64.6 (42/65)  
 Overweight (BMI 25–30) 31.7 (127/401) 31.7 (105/331) 29.2 (19/65)  
 Obese (BMI ≥ 30) 10 (40/401) 10.6 (35/331) 6.2 (4/65)  
Accelerometry
 Work (h/day) 7.9 (1.2) 7.9 (1.2) 7.7 (1.2) 0.02
 Wear time (days) 2.7 (0.9) 2.7 (1.0) 3.0 (0.8) 0.29
  1. Data are presented as mean ± SD or % (n/N) . BMI body mass index, h hours. ªEducational level: until primary school as “low”, secondary school and/or 1 to 2 years of specialization as “medium”, and university or university college as “high”