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Table 8 PTH concentration in 170 serum samples from 4775 25(OH)D serum samples

From: Determination of serum 25-hydroxyvitamin D status among population in southern China by a high accuracy LC-MS/MS method traced to reference measurement procedure

Sex All 18-40 years 41-60 years 61-86 years
M (n = 92) F (n = 78) M (n = 15) F (n = 10) M (n = 43) F (n = 20) M (n = 34) F (n = 48)
PTH (pg/mL)
 Median 138.00 169.80* 98.42 343.10 136.30 288.85*** 142.10 143.10
 Mean ± SD 210.43 ± 243.62 339.65 ± 398.82 290.15 ± 401.12 703.45 ± 698.37 217.67 ± 237.09 461.46 ± 446.12 166.01 ± 137.40 213.109 ± 189.50
25(OH)D(ng/mL)
 Median 29.51 25.95 32.10 22.50 24.70 27.55 30.28 27.35
 Mean ± SD 29.67 ± 11.32 26.86 ± 9.85 33.32 ± 12.77 24.90 ± 11.23 27.76 ± 11.36 26.87 ± 11.21 30.48 ± 10.41 27.26 ± 9.12
  1. *P < 0.05, ***P < 0.001, M male, F female