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Table 1 General characteristics of the subjects (No(%))

From: The Association between Shift Work and the Metabolic Syndrome in Female Workers

Characteristics Daytime workers (n = 71) Shift workers (n = 183) p-value
Age (years) 18-39 46 (64.8) 22 (12.0) <0.001*
  40-49 17 (23.9) 102 (55.7)  
  ≥50 8 (11.3) 59 (32.2)  
  Mean ± SD    36.4 ± 12.5    49.7 ± 8.6 <0.001
Smoking Yes 1 (1.4) 2 (1.1) 1.000
  No 70 (98.6) 181 (98.9)  
Alcohol drinking Yes 36 (50.7) 67 (36.6) 0.040*
  No 35 (49.3) 116 (63.4)  
Exercise Yes 61 (85.9) 129 (70.5) 0.011*
  No 10 (14.1) 54 (29.5)  
Hypertension Yes 3 (4.2) 23 (12.6) 0.049
  No 68 (95.8) 160 (87.4)  
DM Yes 1 (1.4) 2 (1.1) 1.000
  No 70 (98.6) 181 (98.9)  
Dyslipidemia Yes 0 (0.0) 1 (0.5) 1.000
  No 71 (100.0) 182 (99.5)  
  1. *calculated by chi-squared test, † calculated by Fisher's exact test, ‡ calculated by t-test.
  2. SD, standard deviation; DM, diabetes mellitus.