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Table 1 Baseline characteristics by gender and occupation among cohort populations in Guangzhou, China, 1983-1984

From: Adverse trends of cardiovascular risk factors among low risk populations (1983-1994) - a cohort study of workers and farmers in Guangzhou, China

  Males Females
  Workers Farmers Workers Farmers
  Mean or % SD Mean or % SD Mean or % SD Mean or % SD
Age (years) 42.1 8.7 42.4 8.9 41.1 8.2 41.7 9.6
Education (%)    *     *  
   Never school 2.1   8.3   11.5   57.4  
   Primary school 36.8   75.3   34.3   40.4  
   Middle school 35.7   14.1   25.0   1.8  
   High school or above 25.4   2.3   29.2   0.5  
Current smoker (%) 71.7   81.8*   2.8   5.3*  
Cigarettes per day         
   Total 12.7 11.8 18.6* 14.8 0.2 1.8 0.5* 2.9
   Current smoker 17.7 10.3 22.7* 13.2 8.4 7.2 9.7 8.2
Current alcohol drinker (%) 24.9   61.0*   1.8   7.7*  
Alcohol intake (g/per day)         
   Total 10.6 28.9 51.8* 74.0 0.4 4.5 1.3* 7.3
   Drinker 42.4 44.8 84.9* 78.5 20.4 27.4 17.3 20.5
Systolic blood pressure (mmHg) 115.0 14.8 115.5 14.0 114.4 17.2 109.8* 13.9
Diastolic blood pressure (mmHg) 74.6 9.8 72.3* 9.5 74.0 10.5 68.8* 9.1
Hypertension (%) 9.7   7.4*   10.5   3.8*  
Taking antihypertensive medication (%)        
   Total 1.3   0.3*   1.3   0.3*  
   Hypertensive 13.8   3.6*   12.1   6.7  
Body mass index (kg/m2) 20.5 2.4 19.9* 1.9 21.4 3.0 19.7* 2.0
Weight category (%)    *     *  
   Normal 95.3   99.1   88.3   98.9  
   Overweight 4.7   0.9   10.8   1.0  
   Obesity 0.0   0.1   1.0   0.1  
Total cholesterol (mg/dl) 181.9 32.0 158.6* 30.3 187.2 33.2 155.4* 28.7
Low density cholesterol (mg/dl) 112.2 28.4 94.0* 25.3 114.5 29.2 92.4* 25.0
High density cholesterol (mg/dl) 49.6 12.1 49.1 12.2 53.4 12.4 47.9* 10.4
Triglycerides (mg/dl) 104.9 86.4 80.8* 77.6 100.3 90.5 76.1* 44.0
  1. *P < 0.01 comparing workers and farmers within the same gender