Table 1 Characteristic of subjects in PHPT, NPHPT, SHPT and Health groups

Age (years)

47.7 ± 15.5 ^b

53.7 ± 15.9

46.0 ± 12.1

45.1 ± 12.3

Gender(M/F)

36/56

10/26

37/0

45/0

Serum calcium

(2.1–2.7 mmol/L)*

3.24 ± 0.82^a

2.59 ± 0.10 ^a

2.19 ± 0.07

2.21 ± 0.11

Serum phosphate

(0.81–1.45 mmol/L)

0.77 ± 0.34^a

0.79 ± 0.15 ^a

1.06 ± 0.15

1.07 ± 0.15

PTH

(14.5–62.7 pg/mL)

884 ± 863^a

252 ± 239

94.8 ± 28.6

52.6 ± 9.09

25(OH)D

(19.08–57.6 ng/mL)

11.7 ± 4.0^a

14.0 ± 5.02^a

13.8 ± 2.63^a

17.6 ± 6.74

Calcium×PTH

395 ± 402

72.4 ± 69.0

23.3 ± 48.4

12.3 ± 48.4

Lg Calcium×PTH**

2.31 ± 0.46 ^a

1.75 ± 0.26 ^a

1.37 ± 0.01

1.12 ± 0.10

PFindex

454 ± 430

101 ± 111

21.7 ± 6.38

12.2 ± 2.98

LgPFindex**

2.44 ± 0.46 ^a

1.87 ± 0.31 ^a

1.35 ± 0.12

1.10 ± 0.11

Ca/P

4.63 ± 1.40 ^a

3.35 ± 0.71 ^a

2.11 ± 0.34

2.10 ± 0.35