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Table 1 General characteristics of subjects with normal glucose tolerance (NGT), prediabetes and type 2 diabetes (T2DM)

From: UCP2 and UCP3 variants and gene-environment interaction associated with prediabetes and T2DM in a rural population: a case control study in China

  NGT Prediabetes T2DM χ2, p value
   Mean ± SD   
Age (years) 58.64 ± 11.62 58.73 ± 11.69 58.64 ± 11.82 0.008, 0.992a
   No. (%)   
Male 200 (48.90) 196 (49.75) 195 (49.12) 0.971, 0.615
Income (yuans)     6.025, 0.049
 < 2000 203 (49.63) 179 (45.43) 215 (54.16)  
 ≥ 2000 206 (50.37) 215 (54.57) 182 (45.84)  
Regular exercise     2.223, 0.329
 Yes 78 (19.07) 86 (21.83) 83 (20.91)  
 No 331 (80.93) 308 (78.17) 314 (79.09)  
Smoking     1.946, 0.378
 Yes 74 (18.09) 57 (14.47) 70 (17.63)  
 No 335 (81.91) 337 (85.53) 327 (82.37)  
Excessive drinking     2.460, 0.292
 Yes 36 (8.80) 46 (11.68) 47 (11.84)  
 No 373 (91.20) 348 (88.32) 350 (88.16)  
Hypertension     20.666, < 0.001
 Yes 124 (30.32) 148 (37.56) 182 (45.84)  
 No 285 (69.68) 246 (62.44) 215 (54.16)  
BMI (kg/m2)     43.443, < 0.001
 < 25 298 (72.86) 234 (59.39) 200 (50.38)  
 ≥ 25 111 (27.14) 160 (40.61) 197 (49.62)  
  1. NGT normal glucose tolerance, T2DM type 2 diabetes, BMI body mass index, SD standard deviation
  2. Bold denotes significant at p-value < 0.05
  3. aOne-way analyses of variance