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Table 1 Baseline demographic characteristics of participants of C-STRIDE Study (Nov 2011–Mar 2016)

From: Prevalence and risk factors for cardiovascular disease among chronic kidney disease patients: results from the Chinese cohort study of chronic kidney disease (C-STRIDE)

Variable CVD   P
Total Yes No Missing value
(n = 3168) (n = 311) (n = 2857)
Age (yr) 48.21 ± 13.70 58.59 ± 10.51 47.08 ± 13.53 0 <0.001
Gender     0  
 Male 1876 (59.22) 215 (69.13) 1661 (58.14)   <0.001
 Female 1292 (40.78) 96 (30.87) 1196 (41.86)  
Annual income     139  
  ≤ 30 000 yuan 1092 (36.05) 119 (39.53) 973 (35.67)   0.18
  > 30 000 yuan 1937 (63.95) 182 (60.47) 1755 (64.33)  
Educational attainment     22  
 Junior high school degree or below 1384 (43.99) 150 (48.39) 1234 (43.51)   0.10
 High school degree or above 1762 (56.01) 160 (51.61) 1602 (56.49)  
Region     0  
 South 916 (28.91) 60 (19.29) 856 (29.96)   <0.001
 North 2252 (71.09) 251 (80.71) 2001 (70.04)  
 BMI (kg/m2) 24.47 ± 3.63 25.04 ± 3.35 24.41 ± 3.65 242 <0.001
 BMI category (kg/m2)     242  
  < 24 1364 (46.62) 96 (35.29) 1268 (47.78)   <0.001
  ≥ 24 1562 (53.38) 176 (64.71) 1386 (52.22)  
Tobacco use     62  
 Yes 1185 (38.15) 156 (50.98) 1029 (36.75)   <0.001
Exercise (hours/week)     758  
  ≥ 3.5 1239 (51.41) 124 (52.99) 1115 (51.24)   0.61
  < 3.5 1171 (48.59) 110 (47.01) 1061 (48.76)  
 eGFR (ml/min/1.73 m2) 50.72 ± 30.03 36.71 ± 18.87 52.25 ± 30.62 0 <0.001
  1. Continuous variables are presented as mean ± SD. Categorical data are presented as numbers (n) of patients and percentages. BMI body mass index