Table 2 Perioperative characteristics of all patients

Preoperative Hb, g/dl

11.9 ± 1.4

11.9 (10.8–12.8)

Anesthesia time, h

6.2 ± 2.4

5.9 (4.5–7.7)

Operative time, h

5.1 ± 2.4

4.8 (3.3–6.5)

Urine output ^a, ml

600.4 ± 560.0

450.0 (250.0–750.0)

Estimated blood loss ^b, ml

1432.0 ± 1690.5

900.0 (500.0–1825.0)

RBC transfusion, pack

2.5 ± 3.5

1 (0–4)

Fluid infusion ^c, ml

4466.9 ± 2934.2

3800.0 (2337.5–5700.0)

 Colloid

426.5 ± 500.8

275.0 (0–712.5)

 Crystalloid ^c

4024.7 ± 2669.6

3400.0 (2100.0–5100.0)

MAP under 65 mmHg, min

27.0 ± 37.6

15.0 (5.0–35.0)

MDPE (%)

−4.4 ± 11.4

−5.1 (−12.0–3.1)

Wobble (%)

7.6 ± 2.3

7.3 (6.0–9.1)