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Table 2 Risk factors associated with mortality in patients with influenza A/H1N1 based on a bivariate analysis

From: Risk factors associated with mortality in patients infected with influenza A/H1N1 in Mexico

Risk factor

Bivariate analysis

OR (95 % CI)

p value

Male

5.25 (1.22–28.95)

0.004*

Lack of flu vaccination in previous year

11.12 (0.57–215.3)

0.057

Recent or past smoker

0.88 (0.18–4.38)

0.885

Overweight or obese

0.62 (0.09–3.91)

0.609

Chronic disease diagnosis†

3.12 (0.62–15.79)

0.160

Intensive care unit hospitalization

9.9 (1.51–64.52)

<0.001*

Medical received attention after >3 days

6.41 (1.18–34.61)

0.018*

Anti-flu treatment after >3 days

10.0 (1.07–93.43)

0.039*

Serum creatinine >1.0 mg/dL

11.2 (1.05–120.32)

0.004*

  1. OR odds ratio, CI confidence interval
  2. * Significant difference at p < 0.05