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Table 1 General features of control and PHPT subjects

From: "Single nucleotide polymorphisms of the OPG/RANKL system genes in primary hyperparathyroidism and their relationship with bone mineral density"

 

Control group

PHPT group

p

 

(n = 114+)

(n = 298)

 

Age (years)

59 ± 13

62 ±13

0.052

♀/♂

5/1

5.6/1

0.661

Menopause ♀ (%)

87.2

89.5

0.536

BMI (kg/m2)

25.3 ± 3.8

28.7 ± 5.0

0.000

Fracture (%)

21

24.6

0.000

Renal lithiasis (%)

6

36.0

0.000

25-OH-VitD (ng/mL )

20.4 (6-42)

17.2 ± (3-93)

0.997

25-OH-VitD30 ng/mL (%)

15.2

9.2

0.221

Creatinine (mg/dL)

0.98 ± 0.14

1,02 ± 0.29

0.179

Total Calcium (mg/dL)

9.4 (8.6-10.6)

10.7 (9.8-14.5)

0.000

Ionized Calcium (mM)

1.23 (1.11-1.36)

1.47 (1.25-2.07)

0.000

PTH (pg/mL)

37 (10-105)

179 (59-1279)

0.000

Alk Phosphatase (U/L)

63.4 (33-198)

82.3 (20-373)

0.000

B Alk Phosphatase (U/L)

22.1 (11-53)

32.9 (5-85)

0.000

P1NP (μg/L)

46.3 (15-145)

54.9 (11-255)

0.005

Crosslaps B (ng/mL)

0.475 (0.053-1.460)

0.814 (0.044-3.208)

0.000

Osteocalcin (ng/mL)

19.4 (6-39)

30.9 (7-175)

0.000

Serum OPG (pmol/L)

3.0 (0.89-5.61)

4.8 (0.01-12.42)

0.000

LS_BMD (g/cm2)

0.935 ± 0.134

0.879 ± 0.155

0.000

FemNeck_BMD (g/cm2)

0.749 ± 0.120

0.691 ± 0.104

0.000

TotHip_BMD (g/cm2)

0.887 ± 0.126

0.840 ± 0.145

0.000

Rad 1/3_BMD (g/cm2)

0.671 ± 0.696

0.629 ± 0.102

0.000

  1. Data shown as mean ± SD or median and range for non normal variables. B Alk: bone alkaline. OPG: osteoprotegerin. LS: lumbar spine. Fem. Neck: femoral neck. Tot Hip: total hip. 1/3 Rad: third distal radius. BMD: bone mineral density. T Score: BMD related to peak bone mass. Z score: BMD related to mean BMD in general population of equal age and gender. +The 114 control subjects were a subgroup from the 328 total control group age and gender matched with the HPP patients.