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Table 1 Characteristics of study participants according to urban-rural categories

From: Prevalence of overweight and obesity among Chinese Yi nationality: a cross-sectional study

Characteristics Urban residents (n = 621) Rural residents (n = 634) p value
Sex (F/M) 376/245 332/302  
Age 44.6 ± 14.7 45.1 ± 14.2 NS
Smokers (%, n)
Current smokers 23.0(143) 38.0(241) < 0.001
Ex-smokers 10.0(62) 1.7(11)  
Drinkers (%, n) 38.6(240) 30.3(192) < 0.001
Regular leisure-time physical activity 63.5(393) 10.4(66) < 0.001
Education (%, n)
College or above 36.7(228) 3.0(19) < 0.001
Middle school 37.7(234) 12.5(79)  
Primary school or below 25.6(159) 84.5(536)  
Family annual income (%, n)
≥ 10000 yuan 58.8(365) 5.8(37) < 0.001
   < 10000 yuan 41.2(256) 94.2(597)  
Body mass index (kg/m2) 24.0 ± 3.5 21.1 ± 3.1 < 0.001
Waist circumference (cm) 84.3 ± 11.2 76.3 ± 8.5 < 0.001
Family history of obesity (%, n) 17.6(109) 3.2(20) < 0.001
Systolic blood pressure (mmHg) 117.8 ± 18.8 109.8 ± 16.5 < 0.001
Diastolic blood pressure (mmHg) 80.3 ± 12.6 74.2 ± 10.9 < 0.001
fasting plasma glucose (mmol/L) 5.3 ± 1.7 4.9 ± 1.0 < 0.001
0.5-hr plasma glucose (mmol/L) 8.6(7.1, 10.1) 7.3(6.1, 8.7) < 0.001
2-hr plasma glucose (mmol/L) 6.6(5.6, 8.8) 5.3(4.4, 6.5) < 0.001
TC(mmol/L) 4.5 ± 1.0 4.1 ± 0.9 < 0.001
TG(mmol/L) 1.34(0.93, 2.05) 1.26(0.89,1.78) 0.019
HDL-C(mmol/L) 1.3 ± 0.3 1.1 ± 0.2 < 0.001
LDL-C(mmol/L) 2.6 ± 0.7 2.4 ± 0.6 < 0.001
  1. Data were expressed as means ± SD, median (interquartile range) and percentage (number of cases) in normally distributed continuous, abnormally distributed continuous and categorical variables, respectively. Log-transformed values for abnormally distributed continuous variables were used for analysis. Between-groups comparisons were conducted using Student t tests or χ2 tests. NS indicates not significant. TC: total cholesterol; TG: triglyceride; HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol