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Table 5 Bivariable and multivariable logistic regression analysis of factors associated with intraoperative hypotension, North West Ethiopia, February 10 to June 30, 2022

From: Incidence of intraoperative hypotension and its factors among adult traumatic head injury patients in comprehensive specialized hospitals, Northwest Ethiopia: a multicenter observational study

Overall variables (181)

IOP hypotension

 

Yes (N&%)

No (N&%)

Odds- ratio

84(46.4%)

97(53.6%)

Cruds (95%CI)

Adjusted (95%CI)

P-value

Baseline HR

HR ≥ 112

18(69.23)

8(30.07)

3.0(1.23, 7.32)

2.44 (0.21, 27.98)

0.473

HR < 112

66(42.58)

89(57.41)

1

1

1

GCS level

Sever

34(82.92)

7(17.07)

13.02(5.11, 33.13)

7.23(1.1, 47.67)

0.04

Moderate

25(52.08)

23(47.91)

2.91(1.41, 6.04)

1.147(0.26,5.03)

0.855

Mild

25(27.17)

67(72.82)

1

1

 

ASA status

ASA > III

28(84.84)

5 (15.15)

9.2(3.36, 25.26)

0.743(0.12,4.46)

0.745

ASAI-III

56(37.83)

92 (62.16)

1

1

 

Duration of anesthesia

≥ 135 min

35(68.62)

16(31.37)

4.18(2.10, 8.31)

4.25(1.004,17.98)

0.049

< 135 min

49(37.69)

81(62.30)

1

1

 

IV fluid

Fluid used

  

1.001(1.001,1.002)

1.001(1.00,1.003)

0.115

Type procedure

Elevation

30(35.7)

54(64.28)

2.41(0.64, 9.12)

1.48(0.08,25.06)

0.788

Craniotomy

49(66.21)

29(39.1)

7.32(1.92, 27.87)

9.68(0.89, 88.95)

0.063

Bar hole

3(18.75)

13(81.25)

1

1

 

IOP blood loss

≥ 10 ml/kg

32(17.68)

6(3.32)

1.001(1.00,1.001)

1.0(0.998, 1.001)

0.672

< 10 ml/kg)

53(29.28)

90(49.72)

   

CT scan midline shift

Yes

30(76.92)

9(23.07)

5.51(2.40, 12.63)

4.19(0.94, 18.61)

0.06

No

46(37.70)

76(62.79)

1

1

 

Hematoma size

≥ 15 mm

36(57.14)

27(42.85)

4.0(1.49, 10.77)

7.7(1.18, 50.04)

0.033

 

< 15 mm

7(25)

21(75)

1

1

 

Pupillary abnormality

No

66(42.03)

91(57.96)

0.27(0.10,0.73)

0.061(0.005,0.73)

0.027

Yes

16(72.72)

6(27.27)

1

1

 
  1. GCS Glasgow Coma Scale, IV intravenous, HR heart rate, BMI body mass index, ASA American Society of Anesthesiologists, CI confidence interval, CT computed tomography, IOP intraoperative, mm millimeter