Table 5 Preoperative examination information

Hb(g/L)

Male

141.87 ± 15.52

138.85 ± 15.92

0.506^*

0.038

0.170

5.850

Female

123.33 ± 13.28

122.94 ± 13.36

0.663^*

0.773

-2.230

3.000

Hct(%)

Male

41.40 ± 4.89

40.55 ± 4.68

0.158^*

0.600

-0.200

1.300

Female

37.00(35.10-39.15)

38.39 ± 21.73

0.525^{^}

0.200

-0.500

0.900

BUN(mmol/L)

5.48(4.47–6.70)

5.30(4.30–6.50)

0.149^{^}

0.160

-0.700

0.400

Cr(µmol/L)

Male

76(68–85)

74(66-83.75)

0.081^{^}

2.000

0.000

5.000

Female

59(52.25–65.75)

58(51–65)

0.436^{^}

1.000

-1.000

3.000

eGFR(ml/min)

97.10(87.30-105.40)

97.30(89.70-106.40)

0.215^{^}

-1.200

-3.100

0.700

Na⁺(mmol/L)

141.20(141.10-142.30)

141.20(139.70-142.50)

0.896^{^}

0.000

-0.300

0.300

K⁺(mmol/L)

4.01(3.82–4.22)

4.03(3.82–4.25)

0.336^{^}

-0.020

-0.070

0.030

Urine specific gravity

1.02(1.015–1.024)

1.018(1.015–1.023)

0.196^{^}

0.001

0.000

0.001