Table 6 Multivariable Cox regression model for VAP

Total Cohort

Covid-19

6.69

2.59–17.31

< 0.01 *

Age

0.99

0.97–1.01

0.74

Sex (male)

0.89

0.49–1.61

0.70

days in ICU

1.03

1.00–1.06

0.01

ventilation days

0.98

0.95–1.01

0.22

Lung disease

0.53

0.20–1.36

0.18

Diabetes

0.91

0.45–1.83

0.80

Smoking

0.59

0.18–1.93

0.36

Cohort adjusted by days in ICU

Covid-19

4.42

1.39–13.99

0.01*

Age

0.98

0.95–1.01

0.45

Sex (male)

1.15

0.47–2.81

0.83

days in ICU

1.11

1.00–1.24

0.04 *

ventilation days

1.00

0.90–1.11

0.93

Lung disease

0.42

0.09–1.91

0.26

Diabetes

0.76

0.26–2.23

0.62

Smoking

0.53

0.06–4.20

0.55

Cohort adjusted for ventilation days

Covid-19

4.08

1.17–14.18

0.02 *

Age

0.99

0.95–1.03

0.71

Sex (male)

0.89

0.32–2.48

0.71

days in ICU

1.03

0.99–1.08

0.12

ventilation days

1.10

0.98–1.24

0.10

Lung disease

0.27

0.03–2.20

0.22

Diabetes

0.48

0.10–2.22

0.35

Smoking

0.48

0.10–2.22

0.52