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Table 3 Univariate and multivariate Cox regression model for mortality prediction

From: Effectiveness of different treatment regimens on patients with COVID-19, hospitalized in Sanandaj hospitals: a retrospective cohort study

Characteristic category

Univariate analysis HR (95% CI)

*P-value

Multivariate analysis HR (95% CI)

P-value

Age group

    

  ≤ 65 years

1 (Ref)

 

1 (Ref)

 

  > 65 years

2.42 (1.70–3.46)

 < 0.001

1.83 (1.25–2.69)

0.002

Sex

    

 Female

1 (Ref)

 

Not in model

–

 Male

0.92 (0.65–1.30)

0.658

–

–

Job

    

 Unemployed

1(Ref)

 

Not in model

–

 Self-employment

0.72 (0.34–1.52)

0.395

–

–

 Retired

1.25 (0.60–2.59)

0.319

–

–

 Housewife

0.75 (0.36–1.52)

0.429

–

–

 Other

0.61 (0.21–1.72)

0.354

–

–

Cardiovascular

2.67 (1.84–3.88)

 < 0.001

1.89 (1.25–2.86)

0.002

Diabetes

1.03 (0.63–1.70)

0.881

Not in model

–

Kidney disease

0.41 (0.10–1.70)

0.223

Not in model

–

Hypertension

1.40 (0.93.2.10)

0.106

Not in model

–

Hospitalization in the ICU

4.39 (3.13–6.17)

 < 0.001

3.68 (2.49–5.44)

 < 0.001

Use a ventilator

3.13 (2.05–4.79)

 < 0.001

1.59 (1.02–2.54)

0.048

Drug regimen

    

 Regim 1

1 (Ref)

–

1 (Ref)

 

 Regim 2

0.86 (0.49–1.49)

0.595

1.20 (0.67–2.16)

0.531

 Regim 3

1.24 (0.55–2.80)

0.589

1.25 (0.54–2.92)

0.594

 Regim 4

0.59 (0.27–1.26)

0.177

0.62 (0.27–1.40)

0.253

 Regim 5

1.03 (0.49–2.14)

0.927

2.12 (0.30–1.58)

0.385

 Regim 6

1.12 (0.63–2)

0.683

1.42 (0.77–2.62)

0.254