Table 1 Baseline characteristics of all patients and possible predictors of postoperative HBS in patients with SHPT

Gender (male/female)

χ² = 0.288

0.592

 Male

49 (65.3%)

27 (62.8%)

22 (68.8%)

 Female

26 (34.7%)

16 (37.2%)

10 (31.3%)

Dialysis modality

χ² < 0.001

1.000

 Hemodialysis

73 (97.3%)

42 (97.7%)

31 (96.9%)

 Peritoneal dialysis

2 (2.7%)

1 (2.3%)

1 (3.1%)

Hypertension

69 (92.0%)

38 (88.4%)

31 (96.9%)

χ² = 1.802

0.362

Diabetes

5 (6.7%)

2 (4.7%)

3 (9.4%)

χ² = 0.649

0.731

Age (years)

46.49 ± 11.02

48.09 ± 11.79

44.34 ± 9.66

t = 1.469

0.146

Duration of dialysis (years)

8.0 (5,10)

8 (5,10)

9 (7,10)

Z = −1.169

0.242

BMI (kg/m²)

22.77 ± 3.71

23.20 ± 3.79

22.19 ± 3.57

t = 1.158

0.251

Frequency of color ultrasound

4 (3,4)

3 (2,4)

4 (3,4)

Z = −1.359

0.174

Frequency of ECT

4 (4,4)

4 (4,4)

4 (4,4)

Z = −0.475

0.635

Frequency of pathological examination

4 (4,4)

4 (4,4)

4 (4,4)

Z = −0.454

0.649

Preoperative Hb (g/l)

116.85 ± 18.88

123.19 ± 17.01

108.34 ± 18.12

t = 3.635

0.001

BNP (pg/ml)

156 (62,359)

119 (58,265)

249.5 (78.75,508.5)

Z = −2.105

0.035

Alb (g/l)

42.9 (40.3,44.6)

43.7 (42.0,45.2)

41.4 (38.1,43.4)

Z = −2.973

0.003

Serum ALP (U/l)

292 (144,545)

173 (118,287)

683.5 (354.3,974.8)

Z = −6.277

 < 0.001

Serum calcium (mmol/l)

2.45 ± 0.26

2.50 ± 0.26

2.40 ± 0.25

t = 1.666

0.100

Serum phosphate (mmol/l)

2.04 (1.75,2.39)

2.05 (1.78,2.33)

2.00 (1.71,2.51)

Z = −0.021

0.983

iPTH (pg/ml)

2170 ± 990

1619 ± 668

2911 ± 864

t = −7.309

 < 0.001

TSH (mlu/l)

1.59 (0.99,2.60)

1.45 (0.99,2.68)

1.64 (1.02,2.35)

Z = −0.107

0.375

AAC score

3 (0,15)

3 (0,14)

5 (0.25,16.5)

Z = −0.708

0.479