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Table 1 Main demographic data and clinical characteristics of patients discharged from hospital

From: Intensive care unit acquired infection has no impact on long-term survival or quality of life: a prospective cohort study

Factor No ICU-acquired infection (n = 217) ICU-acquired infection (n = 55) P
Male sex 133 (61.3) 40 (72.7) 0.12
Age years 57 (46–68) 57 (45.5–67.5) 0.63
Main reason for admission
   Surgical, nontrauma 73 (34.0) 25 (45.5) 0.12
   Trauma 18 (8.4) 16 (29.1) < 0.001
   Medical 96 (44.7) 8 (14.5) < 0.001
   Neurological 21 (9.8) 4 (7.3) 0.8
Chronic underlying disease 148 (68.2) 33 (60.0) 0.27
Current smoker 82 (42.7) 20 (40.8) 0.87
Alcohol abuse 42 (19.4) 11 (20.8) 0.85
APACHE II score on admission 22 (18–28) 20 (17–27) 0.44
SOFA score on admission 6.0 (4.0–8.0) 9.0 (6.0–10.0) < 0.001
SOFA score on ICU discharge 3.0 (2.0–5.0) 3.0 (2.0–4.0) 0.26
Infection on admission 171 (78.8) 29 (52.7) < 0.001
Community-acquired pneumonia on admission 59 (27.2) 5 (9.1) 0.004
Hospital-acquired pneumonia on admission 32 (14.7) 7 (12.7) 0.83
Sepsis on admission 30 (13.8) 3 (5.5) 0.11
Severe sepsis on admission 17 (7.8) 0 (0) 0.03
Septic shock on admission 37 (17.1) 16 (29.1) 0.06
LOS in ICU (days) 3.75 (2.7–5.8) 10 (6.2–15.8) < 0.001
LOS in hospital, days 17 (10–26) 25 (17.5–37) 0.62
  1. Values are expressed as median (25th to 75th percentile) or number (%) of patients. Chronic underlying diseases included chronic obstructive pulmonary disease, ischaemic heart disease, chronic hepatic disease, chronic renal disease, previous stroke or transient ischaemic attack, diabetes, malignancy or immunosuppressive medication. APACHE, Acute Physiology and Chronic Health Evaluation; ICU, intensive care unit; LOS, length of stay; SOFA, Sequential Organ Failure Assessment.