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Table 4 Associations of PTH and 25(OH)D with socio-demographic, anthropometric, clinical and analytical characteristics

From: Vitamin D, parathyroid hormone and metabolic syndrome – the PORMETS study

  PTH 25(OH)D
  β (95% CI)b p value β (95% CI)b p value
Gender
 Women a   a  
 Men −3.331 (−6.415, −0.246) 0.034 0.383 (−0.666,1.433) 0.473
Age (years) 0.320 (0.225,0.415) <0.001 −0.029 (−0.061,0.003) 0.080
UV exposure
 Low UV a   a  
 High UV −0.531 (−2.541,3.603) 0.734 0.940 (−0.105,1.985) 0.078
Physical exercise
 No a   a  
 Yes −2.346 (−5.799,1.087) 0.180 1.655 (0.484,2.826) 0.006
 BMI 0.475 (0.143,0.807) 0.005 −0.150 (−0.262, −0.037) 0.009
 WC 0.184 (0.048,0.320) 0.008 −0.039 (−0.085,0.008) 0.101
 Glucose −2.319 (−7.704,3.066) 0.398 −2.051 (−3.903, −0.199) 0.030
 Triglycerides −1.118 (−3.557,1.322) 0.368 −1.322 (−2.139, −0.505) 0.002
 Calcium −2.098 (−7.923,3.727) 0.479 0.298 (−1.690,2.286) 0.768
 Phosphorus −4.689 (−7.567, −1.812) 0.001 0.245 (−0.748,1.238) 0.628
 Creatinine 14.553 (5.267,23.838) 0.002 2.367 (−0.789,5.522) 0.141
 PTH    −0.004 (−0.034,0.025) 0.770
 25(OH)D −0.040 (−0.311,0.230) 0.770   
  1. Some of the variables without significant associations were excluded from the table: level of education, drinking and smoking habits, height, weight, hip circumference, WHR, WHtR, systolic and diastolic BP, HDL-cholesterol, total cholesterol, albumin, insulin, HOMA and hs-CRP
  2. CI confidence interval, UV Ultraviolet, low UV period December–May, high UV period June–November, IMC body mass index, WC waist circumference, PTH parathyroid hormone serum levels, 25(OH)D 25-hydroxyvitamin D serum levels
  3. aReference class
  4. bβ coefficients adjusted for gender and age