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Table 1 Demographic data of studied groups

From: Evaluation of liver enzyme levels in workers exposed to vinyl chloride vapors in a petrochemical complex: a cross-sectional study

  Case (n = 52) Control (n = 48) P-Value
Age    
Mean (yr) 30.8 30.69 >0.05
Median (yr) 30.5 30.5  
Range (yr) 22–41 23–43  
Work experience    
Mean (yr) 8.1 9 >0.05
Median (yr) 7.5 8  
Range (yr) 3–15 2–14  
BMI    
Mean (kg/m2) 22.07 22.29 >0.05
Median (kg/m2) 22 22  
Range (kg/m2) 19–24 19–26