Table 2

Age-adjusted mean of body mass index (BMI), waist to hip ratio (WHR) and serum lipids in rural and urban residents, by sex

Women
mean (95% CI)
Men
mean (95% CI)
P value
BMI (kg/m2)
 Rural (n=6667)/(n=4990)23.3 (23.2 to 23.4)21.6 (21.5 to 21.6)
 Urban (n=8169)/(n=4282)25.8 (25.7 to 25.9)22.7 (22.6 to 22.8)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
WHR
 Rural (n=6674)/(n=4990)0.85 (0.85 to 0.85)0.86 (0.86 to 0.86)
 Urban (n=8169)/(n=4282)0.81 (0.81 to 0.81)0.85 (0.85 to 0.85)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
TC (mmol/L)
 Rural (n=7096)/(n=5000)4.00 (3.98 to 4.02)3.73 (3.70 to 3.75)
 Urban (n=8563)/(n=4284)4.11 (4.08 to 4.13)3.98 (3.95 to 4.01)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
LDL-C (mmol/L)
 Rural (n=7096)/(n=5000)2.62 (2.61 to 2.64)2.39 (2.37 to 2.41)
 Urban (n=8563)/(n=4284)2.73 (2.71 to 2.75)2.64 (2.62 to 2.67)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
HDL-C (mmol/L)
 Rural (n=7096)/(n=5000)1.15 (1.14 to 1.16)1.09 (1.08 to 1.10)
 Urban (n=8563)/(n=4284)1.20 (1.19 to 1.21)1.15 (1.14 to 1.16)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
TG (mmol/L)
 Rural (n=7096)/(n=5000)0.85 (0.84 to 0.86)1.02 (1.00 to 1.04)
 Urban (n=8563)/(n=4284)0.94 (0.93 to 0.95)1.13 (1.11 to 1.16)
 P value for difference between sex<0.001
 P value for difference between areas<0.001
  • HDL-C, high density lipoprotein-cholesterol; LDL-C, low density lipoprotein-cholesterol; TC, total cholesterol; TG, triglycerides.