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Table 1 Characteristics of study subjects by gendera

From: Long working hours and overweight and obesity in working adults

Variable N (%), Mean ± SD
Women(N = 411) Men(N = 300)
General characteristics   
 Age group   
  40–49 220(53.5) 141(47)
  50–59 123(37.5) 111(37)
   ≥ 60 57(17.4) 48(16)
 Marital status   
  Unmarried 10(2.5) 8(2.7)
  Married 367(91.5) 277(93.9)
  Divorced/Widow/Widower 24(6.0) 10(3.4)
 Educational level   
  Low 200(48.7) 129(43)
  Middle 191(46.5) 136(45.3)
  High 20(4.9) 35(11.7)
 Household income (US$/Month)   
   < 2,000 21(5.8) 18(6.3)
  2,000–3,000 18(5) 17(6.0)
   ≥ 3,000 321(89.2) 249(87.7)
 Smoking   
  Non-smoker 396(96.3) 86(28.7)
  Smoker 15(3.7) 214(71.3)
 Alcohol consumption   
  Non-drinking 284(69.1) 54(18)
  Drinking 127(30.9) 246(82)
Anthropometric characteristics   
 BMI(kg/m2)* 23.2 ± 2.9 24.5 ± 2.7
  Prevalence of overweight(%)+ 102(24.8 %) 85(28.3 %)
  Prevalence of obesity(%)+ 97 (23.6 %) 134(44.7 %)
 PBF(%)* 27.3 ± 5.3 23.9 ± 4.5
  Prevalence of overweight(%)+ 156 (38.0 %) 115 (38.3 %)
  Prevalence of obesity(%)+ 48 (11.7 %) 136(45.3 %)
 Lean body mass(kg)* 36.9 ± 3.5 48.9 ± 4.5
  1. *Values are Mean ± SD
  2. +Abbreviations. BMI: Body mass index (Cut-off limits of overweight: 23 ≤ BMI (kg/m2) < 25, Cut-off limits of obesity: BMI (kg/m2) ≥25), PBF: Percent body fat (Cut-off limits of overweight: 20 = <PBF (%) < 25 in men and 30 ≤ PBF (%) < 35 in women, Cut-off limits of obesity: men’s PBF (%) ≥ 25; women’s PBF (%) ≥ 35)
  3. aDifferences between sexes: *P < 0.05 obtained by students t-test, **P < 0.05 obtained by χ 2-test