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Table 4 Cox proportional hazard regression of predictors on recovery of critically ill patients on mechanical ventilation at Dessie Comprehensive specialized, Ethiopia, 2021. (n = 376)

From: Time to recovery and its predictors among critically ill patients on mechanical ventilation from intensive care unit in Ethiopia: a retrospective follow up study

Predictors

Category

Recovery

CHR(95% CI)

AHR (95% CI)

P-value

Event

Censored

Sex

Male

80

137

0.783(0.573- 1.070)

0.758(0 .547- 1.050)

0.095

Female

79

80

1

1

Age

40.73 ± 16.27

40.73 ± 16.27

0.992(0.982- 1.003)

0.992(0.981–1.00)

0.106

Type of respiratory failure

Type I

66

81

0.807(0.904- 1.697)

0.914( 0.631–1.325)

0.635

Type II

93

136

1

1

 

Diagnosis category at time of receiving MV

Trauma

55

115

1

1

Non-trauma

104

102

1.722(1.2411–2.391)

1.690( 1.150- 2.485)

0.008*

Respiratory rate

 ≤ 20

43

37

1.301(0.916- 1.848)

1.417(0 .983- 2.044)

0.062

 > 20

116

180

1

1

 

Oxygen Saturation

 < 90

75

150

1

1

 ≥ 90

84

67

1.481(1.083- 2.027)

1.600(1.157- 2.211)

0.004 *

Comorbidities

Yes

47

97

1

1

No

112

120

1.578(1.121- 2.221)

1.774(1.250- 2.519)

0.001 *

Glasgow Coma Scale

 ≤ 8

45

111

1

1

9–12

86

86

1.584(1.103- 2.274)

1.993( 1.358- 2.924)

 < 0.001 *

13–15

26

20

1.865(1.162- 2.992)

2.451( 1.483- 4.051)

 < 0.001 *

Use of tracheostomy

Yes

51

43

0 .394(0.271- 0.572)

0.276(0.180–0.422)

 < 0.001 *

No

108

174

1

1

 
  1. * Statistically Significant at P < 0.05