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Table 4 Multivariable Cox regression analysis for risk factors for mortality among drug-resistant tuberculosis patients in Amhara region, from September 1, 2010 to December 31, 2017

From: Risk factors for mortality among drug-resistant tuberculosis patients registered for drug-resistant treatment in Amhara region, Ethiopia: a historical cohort study

Variables

CHR [95% CI]

AHR [95% CI]

Age in years

  < =24

1.00

1.00

 25–44

0.42 [0.21 0.88]

0.45 [0.14 1.84]

 45 and above

1.18 [1.12 1.43]

1.28 [1.10 1.68]

Tuberculosis related complication

 No

1.00

1.00

 Yes

11.94 [7.14 19.97]

9.31 [5.11 16.97]

Baseline sputum smear

 Positive

1.00

1.00

 Negative

1.56 [0.75 3.27]

1.23 [0.65 2.33]

Level of education

 No education

2.69 [1.34 5.39]

1.29 [0.62 2.69]

 Primary

1.67 [0.75 3.68]

1.66 [0.74 3.70]

 Secondary and above

1.00

1.00

Anaemia

 Non anaemic

1.00

1.00

 Anaemic

[1.35 8.41]

3.04 [1.14 9.20]

HIV/AIDS

 Negative

1.00

1.00

 Positive

1.42 [1.21 4.84]

1.34 [1.25 3.35]

Diabetes mellitus

 No

1.00

1.00

 Yes

2.52 [2.14 7.31.]

1.85 [1.24 5.71]

Previous tuberculosis treatment history

 No previous treatment history

1.00

1.00

 Had previous treatment history

1.57 [1.22 1.79]

1.37 [1.16 1.86]

Smoking cigarette

 No

1.00

1.00

 Yes

1.89 [1.04 3.36]

1.39 [1.27 3.18]