Table 4 Univariate and multivariate analysis for 5-year survival (before matching n = 575)

Pathogen

 Bacteria (ref)

1

1

 Fungus

2.41 (1.44–4.02)

0.001

1.91 (1.10–3.33)

0.022

Age (per year)

1.03 (1.02–1.04)

 < .001

1.02 (1.01–1.03)

 < .001

Gender

 Male (ref)

1

1

 Female

0.94 (0.67–1.33)

0.737

0.96 (0.67–1.39)

0.830

Smoking

 Never (ref)

1

1

 Ever

0.97 (0.71–1.33)

0.872

0.98 (0.70–1.38)

0.922

Charlson score

 0 (ref)

1

1

 1 ~ 2

2.56 (1.24–5.29)

0.011

2.27 (1.09–4.71)

0.028

 >  = 3

7.21 (3.67–14.14)

 < .001

5.51(2.78–10.92)

 < .001

Phase

 II (ref)

1

1

 III

1.40 (1.03–1.91)

0.032

1.26 (0.92–1.73)

0.155

Location

 Right (ref)

1

1

 Left

0.74 (0.55–1.00)

0.050

0.84 (0.62–1.15)

0.286

Bilateral

1.33 (0.42–4.17)

0.628

1.03 (0.31–3.42)

0.963

Pathogen

 Single

1

1

 Multiple

0.83 (0.59–1.16)

0.268

0.91 (0.64–1.29)

0.590