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Table 1 Characteristics and vitamin D status indicators of the study group (mean +/- SD).

From: Seasonal variance of 25-(OH) vitamin D in the general population of Estonia, a Northern European country

  Females (n = 200) Males (n = 167)  
  Mean SD Mean SD p value
Age 49.2 12 48.5 11.6 NS
BMI 28.5 6.9 27.9 4.6 NS
25(OH)D winter (nmol/L) 44.6 15.8 42.7 14.0 NS
PTH winter (pmol/L) 4.3 1.8 3.8 1.9 p < 0.05
25(OH)D summer (nmol/L)* 58.4 17.7 60.5 18.5 NS
PTH summer (pmol/L)* 3.9 1.7 3.6 1.7 NS
  1. * n = 316; 138 males, 178 females