Table 3 Comparison of bone mineral density between female patients in the renal tubular acidification dysfunction group and the normal function group (X±S)

Age, y

60.21 ± 13.4

57.6 ± 11.2

0.436

BMI (kg/m²)

23.82 ± 5.16

24.19 ± 3.93

0.770

Premenopausal/postmenopausal

4/24

3/23

0.112

Albumin, g/L

40.89 ± 4.11

40.50 ± 3.56

0.710

Albumin-corrected serum calcium, mmol/L

2.80 ± 0.42

2.85 ± 0.31

0.615

Serum phosphate, mmol/L

0.71 ± 0.19

0.82 ± 0.18

0.034

Serum sodium (mmol/L)

140.92 ± 3.05

141.7 ± 2.63

0.371

Serum magnesium (mmol/L)

0.81 ± 0.12

0.86 ± 0.08

0.149

PTH (pmol/L)

64.9 (25.1, 145.25)

30.15 (18.95, 65.92)

0.083 (Non-parametric)

25OHD (nmol/L)

29.5 (20.4, 41.8)

24.99 (20.23, 32.61)

0.272 (Non-parametric)

Urinary calcium, mmol/24h

8.01 ± 3.13

9.86 ± 6.21

0.169

Urinary phosphate, mmol/24h

17.84 ± 6.15

19.51 ± 8.85

0.421

Urine sodium (mmol/24h)

159.12 (97.65, 208)

187.2 (101.4, 223.0)

0.683 (Non-parametric)

Urine magnesium (mmol/24h)

3.3 (2.17, 4.06)

2.7 (2.19, 3.50)

0.486 (Non-parametric)

L1-L4 (g/cm²)

0.787 ± 0.195

0.863 ± 0.187

0.214

Femoral neck (g/cm²)

0.604 ± 0.163

0.719 ± 0.129

0.023

Total hip (g/cm²)

0.604 ± 0.159

0.756 ± 0.128

0.002

Fracture (with/without)

12/16

4/22

0.038 (Fisher)

Kidney stones (with/without)

11/17

5/21

0.107 (χ²)

Osteoporosis at any site (n,%)

19 (67%)

9 (34%)

0.015 (χ²)