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Table 2 Biochemical characteristics of the study subjects

From: Shift work is associated with metabolic syndrome in male steel workers-the role of resistin and WBC count-related metabolic derangements

Parameter Shift work Day work p value
No 870 862  
Age (years, mean ± SD) 42 ± 8 43 ± 8 0.79
Systolic blood pressure (mmHg) 130 ± 16 126 ± 15 < 0.0001
Diastolic blood pressure (mmHg) 84 ± 12 81 ± 11 < 0.0001
Body mass index (kg/m2) 26.0 ± 4.0 25.6 ± 3.8 0.03
Waist circumference (cm) 88.1 ± 10.1 81.5 ± 10.6 < 0.0001
Fasting glucose (mmol/L) 5.4 ± 0.8 5.2 ± 0.4 0.02
HbA1C (%) 5.6 ± 0.7 5.5 ± 0.7 0.31
Total cholesterol (mmol/L) 5.1 ± 1.1 5.0 ± 0.9 0.30
Triglyceride (mmol/L) 1.7 ± 1.1 1.3 ± 0.9 0.002
HDL-cholesterol (mmol/L) 1.2 ± 0.3 1.3 ± 0.4 0.002
LDL-cholesterol (mmol/L) 2.9 ± 0.9 2.7 ± 0.8 0.19
Uric acid (μmol/L) 392.6 ± 77.3 362.8 ± 89.2 0.02
Total WBC count (109/L) 6.865 ± 1.819 6.304 ± 1.547 < 0.0001
Resistin (ng/mL)a 13 ± 10 10 ± 7 0.02
  1. Data are mean ± SD
  2. HDL high-density lipoprotein, LDL low-density lipoprotein, WBC white blood cell. p values were calculated using the independent sample t test for numerical data
  3. aResistin levels were measured in 107 shift workers and 100 day workers