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Table 2 Correlation analysis between 1-h post load plasma glucose and different covariates in whole study population and in the four groups of different glucose tolerance status

From: Vitamin D and 1-hour post-load plasma glucose in hypertensive patients

  All NGT < 155 NGT ≥ 155 IGT DM
(n = 300) (n = 156) (n = 74) (n = 44) (n = 26)
r P r P R P r P r P
25(OH)D, ng/ml - 0.439 <0.0001 -0.404 <0.0001 -0.541 <0.0001 -0.480 <0.0001 -0.590 0.004
Matsuda index/ISI -0.418 <0.0001 -0.265 <0.0001 -0.208 0.037 -0.170 0.134 -0.014 0.472
hsCRP, mg/dl 0.384 <0.0001 0.016 0.422 0.240 0.020 0.032 0.418 0.342 0.043
e-GFR, ml/min/1.73 m 2 -0.295 <0.0001 -0.209 0.004 -0.282 0.007 -0.307 0.021 -0.347 0.041
BMI, Kg/m 2 0.188 0.001 0.006 0.471 -0.005 0.484 0.378 0.006 -0.036 0.430
Age, years 0.187 0.001 0.424 <0.0001 0.364 0.001 0.256 0.047 -0.212 0.149
HDL-cholesterol mg/dl - 0.170 0.002 -0.114 0.078 -0.095 0.209 0.216 -0.080 0.007 0.487
SBP, mmHg 0.097 0.056 0.069 0.197 0.047 0.345 0.048 0.378 0.040 0.423
Triglyceride, mg/dl 0.084 0.073 0.002 0.492 0.113 0.169 0.028 0.427 0.185 0.183
DBP, mmHg -0.030 0.303 0.010 0.453 -0.072 0.270 0.112 0.235 0.062 0.381
Total cholesterol mg/dl 0.028 0.312 0.018 0.410 -0.020 0.432 0.026 0.433 0.082 0.345
  1. ISI = insulin sensitivity index; hs-CRP = high sensitivity C reactive protein; e-GFR = estimated glomerular filtration rate; BMI = body mass index; SBP = systolic blood pressure; DBP = diastolic blood pressure.