Case Control Study
Copyright ©The Author(s) 2023.
World J Crit Care Med. Jun 9, 2023; 12(3): 165-175
Published online Jun 9, 2023. doi: 10.5492/wjccm.v12.i3.165
Table 2 Comparison between ventilator-associated pneumonia and non-ventilator-associated pneumonia groups for risk factors and complications, n (%)
Risk factors and complications
VAP group, n = 46
Non-VAP group, n = 109
P value
Age, mean ± SD52.74 ± 20.4261.45 ± 65.05> 0.5
Sex, males%32 (69.57)73 (66.97)> 0.5
Number of hospital days before intubation, mean ± SD5.39 ± 8.113.38 ± 6.37> 0.5
Number of ICU days before intubation, mean ± SD0.52 ± 1.940.47 ± 2.78> 0.5
Presence of comorbidities Diabetes mellitus19 (41.30)54 (49.54)> 0.5
Hypertension 19 (41.30)67 (61.47)> 0.5
Chronic kidney disease7 (15.22)28 (25.69)> 0.5
Ischemic heart disease6 (13.04)25 (22.94)> 0.5
Neurological disorder5 (10.87)9 (8.26)> 0.5
Malignancy4 (8.70)3 (2.75)> 0.5
Liver disease3 (6.52)8 (7.34)> 0.5
Sickle cell disease3 (6.52)3 (2.75)> 0.5
Hospital courseLength of ICU stay, mean ± SD21.41 ± 11.8911.01 ± 10.38< 0.001a
Duration of mechanical ventilation, mean ± SD16.67 ± 8.7012.03 ± 10.530.009a
Extubation 18 (39.13)79 (72.48)< 0.001a
Need of re-intubation 12 (26.09)11 (10.09)0.014a
Tracheostomy 14 (30.43)9 (8.26)< 0.001a
Potential complicationSeptic shock28 (60.87)31 (28.44)< 0.001a
ARDS15 (32.61)12 (11.01)0.002a
Acute kidney injury24 (52.17)36 (33.03)0.031a
Pneumothorax1 (2.17)2 (1.83)> 0.5
Mortality, deaths14 (30.43)21 (19.27)> 0.5