Table 6 Baseline comparison of the training dataset, validation dataset and check dataset for midterm recovery time prediction model

Extubation time (min)

55.00(45.00, 70.00)

60.00(45.00, 75.00)

59.00(45.00, 73.50)

Postoperative body temperature (℃)

36.67 ± 0.35

36.65 ± 0.30

36.67 ± 0.32

Dexamethasone (mg)

3.00(1.50, 5.00)

2.75(1.50, 5.00)

3.00(2.00, 5.00)

Operation time (min)

30.00(20.00, 41.75)

30.00(20.00, 45.00)

30.00(20.00, 42.25)

Preoperative atropine (mg)

0.32(0.21, 0.50)

0.35(0.22,0.50)

0.34(0.22,0.50)

Nalbuphine (mg)

3.56 ± 1.88

3.55 ± 1.92

3.57 ± 1.90

Preoperative body temperature (℃)

36.52 ± 0.22

36.52 ± 0.21

36.51 ± 0.21

Transfusion volume (ml)

170.00(121.75, 230.00)

162.50(120.00, 232.50)

170.00(130.00, 220.00)

Red blood cell distribution width (%)

11.40(10.90, 12.10)

11.60(11.10, 12.30)

11.30(10.80, 11.90)

Postoperative complications (no/yes)

1246/30(97.60%/2.40%)

265/9(96.70%/3.30%)

262/12(95.60%/4.40%)

Total carbon dioxide (mmol/L)

22.56 ± 2.46

22.45 ± 2.26

22.65 ± 2.50

Underlying diseases (no/yes)

1223/53(95.80%/4.20%)

262/12(95.60%/4.40%)

267/7(97.40%/2.60%)

Dexmedetomidine usage (no/yes)

1100/176(86.20%/13.80%)

232/42(84.70%/15.30%)

228/46(83.20%/16.80%)

Ondansetron usage (no/yes)

473/803(37.10%/62.90%)

107/167(39.10%/60.90%)

113/161(41.20%/58.80%)

ETCO2 (mmHg)

38.17 ± 2.46

38.26 ± 2.66

38.33 ± 2.60

Serum total cholesterol (mmol/L)

4.16(3.72, 4.68)

4.23(3.72, 4.76)

4.20(3.75, 4.71)

Serum calcium (mmol/L)

2.47 ± 0.16

2.47 ± 0.14

2.46 ± 0.16

Muscle relaxant types (atracurium/cisatracurium)

784/492(61.40%/38.60%)

175/99(63.90%/36.10%)

169/105(61.70%/38.30%)

Anesthesiologists

-

-

-

Surgery types

-

-

-

Surgeons

-

-

-

Midterm recovery time (min)

72.00(60.00, 90.00)

75.00(60.00, 90.00)

75.00(58.00, 90.00)