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. Author manuscript; available in PMC: 2015 Nov 20.
Published in final edited form as: J Occup Environ Med. 2012 Nov;54(11):1374–1381. doi: 10.1097/JOM.0b013e31825f2bea

TABLE 3.

Mean Values of Adiposity Measures by Work Hours, Stratified by Sex

Work Hours for Men (n = 300)
Work Hours for Women (n = 108)
<30 (n = 42) 30–39.9 (n = 137) ≥40 (n = 121) P <30 (n = 28) 30–34.9 (n = 47) ≥35 (n = 33) P
Waist circumference, cm
 Model 1 97.9 ± 10.1 99.9 ± 10.6 99.1 ± 10.5 0.725 84.1 ± 12.7 80.8 ± 13.2 76.2 ± 7.9 0.020
 Model 2 97.9 ± 1.8 100.0 ± 1.2 99.0 ± 1.4 0.975 80.9 ± 3.2 79.7 ± 2.4 76.5 ± 2.5 0.255
Abdominal height, cm
 Model 1 21.2 ± 2.5 22.0 ± 2.9 21.7 ± 2.8 0.760 18.4 ± 3.3 18.4 ± 3.4 17.2 ± 2.2 0.103
 Model 2 20.8 ± 0.5 21.8 ± 0.3 21.4 ± 0.4 0.852 19.5 ± 0.8 18.3 ± 0.6 17.4 ± 0.7 0.584
Body mass index, kg/m2
 Model 1 29.6 ± 3.9 30.3 ± 3.7 30.2 ± 3.7 0.698 26.8 ± 5.1 26.4 ± 5.5 25.0 ± 3.1 0.056
 Model 2 29.6 ± 0.7 30.4 ± 0.4 29.9 ± 0.5 0.867 28.5 ± 1.1 27.3 ± 0.9 25.9 ± 0.9 0.189
% Body fat
 Model 1 22.9 ± 4.3 24.3 ± 5.4 24.0 ± 5.2 0.597 32.0 ± 6.4 31.4 ± 5.7 29.1 ± 5.7 0.107
 Model 2 23.3 ± 0.9 24.7 ± 0.6 24.5 ± 0.7 0.475 30.9 ± 1.6 30.7 ± 1.3 29.5 ± 1.3 0.198

P values were obtained from multiple linear regression models.

Model 1, unadjusted (Mean ± SD); Model 2, adjusted for age, physical activity, energy intake, hours of sleep, smoking, police rank, activities after work, household income (Mean ± SE).