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Table 1 Baseline characteristics of patients with H1N1 infections

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

Characteristics

Cases n = 11 (%)

Controls n = 22 (%)

p value

Male

7 (63.6)

5 (22.7)

0.035*

Age

29 (IQR = 25–46)

34 (IQR = 22–44)

0.685

Lack of flu vaccination in previous year

11 (100)

15 (78.9)

0.674

Smoker

5 (45.5)

10 (45.5)

0.999

Overweight or obese

7 (63.6)

13 (59.1)

0.604

Chronic disease diagnosisa

5 (45.5)

4 (18.2)

0.097

First medical attention after onset of flu symptoms (days)

3 (IQR = 2–7)

1 (IQR = 1–3)

0.043*

Treatment initiation with oseltamivir after onset of flu symptoms (days)

8 (IQR = 6–10)

3 (IQR = 2–7)

0.038*

Intensive care unit hospitalization

10 (90.9)

3 (13.6)

0.001*

Received oseltamivir

10 (90.9)

20 (90.1)

0.999

  1. The data are expressed as percentages (%) or averages. p value according to Student’s t-test, χ 2 test or Fisher’s exact test. Median (IQR = 25–75)
  2. IQR inter-quartile range
  3. * p < 0.05
  4. aType 2 diabetes, hypertension, asthma or HIV infection