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Table 4 Number of working hours per week and the risk of self-reported hypertension stratified by gender

From: Effect of Long Working Hours on Self-reported Hypertension among Middle-aged and Older Wage Workers

Sex Models Number of working hours per week p for trend
≤40 41–50 51–60 ≥61
(n = 421) (n = 337) (n = 178) (n = 143)
Males Number of workers 286 223 117 77  
Model 1s (95% CI) 1.00 (reference) 1.61 (0.85-3.03) 1.49 (0.68-3.26) 1.79 (0.77-4.15) 0.151
Model 2s (95% CI) 1.00 (reference) 1.61 (0.85-3.03) 1.50 (0.69-3.29) 1.61 (0.68-3.83) 0.217
Model 3s (95% CI) 1.00 (reference) 1.73 (0.91-3.28) 1.72 (0.78-3.79) 1.63 (0.68-3.93) 0.163
Model 4s (95% CI) 1.00 (reference) 2.19 (1.03-4.63) 2.56 (0.91-7.15) 2.54 (0.90-7.15) 0.093
Females Number of workers 135 114 61 66  
Model 1s (95% CI) 1.00 (reference) 2.23 (0.83-6.03) 2.27 (0.73-7.05) 2.35 (0.79-6.99) 0.128
Model 2s (95% CI) 1.00 (reference) 2.01 (0.74-5.47) 2.21 (0.71-6.90) 2.15 (0.72-6.42) 0.166
Model 3s (95% CI) 1.00 (reference) 2.29 (0.83-6.29) 2.76 (0.86-8.85) 2.76 (0.90-8.43) 0.112
Model 4s (95% CI) 1.00 (reference) 2.86 (0.79-10.34) 3.13 (0.74-13.17) 2.19 (0.49-9.84) 0.066
  1. Model 1s was not adjusted.
  2. Model 2s was adjusted for age.
  3. Model 3s was adjusted for age, and health-related factors including smoking habit, alcohol habit, regular exercise, and body mass index(BMI).
  4. Model 4s was adjusted for age, health-related factors, education and occupational factors including income, occupation, form of employment, and working days per week.
  5. All hazard ratios were calculated using a Cox proportional hazards model with weight cases.
  6. CI = Confidence interval.