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Table 1 Baseline characteristics of the total cohort, excluded patients by ICC classification, and Group NW by WIND classification

From: Validation of a new WIND classification compared to ICC classification for weaning outcome

Variables Total
(n = 1600)
ICC WIND
Excluded
(n = 865)
Group NW
(n = 580)
Age, years 65 (54–72) 63 (54–72) 63 (52–71)
Sex, male 1088 (68.0) 580 (67.1) 387 (66.7)
Underlying disease
 Malignancy 952 (59.5) 561 (64.9) 389 (67.1)
 Respiratory 458 (28.6) 250 (28.9) 156 (26.9)
 Neurologic 225 (14.1) 122 (14.1) 60 (10.3)
 Gastrointestinal 209 (13.1) 135 (15.6) 108 (18.6)
 Cardiovascular 202 (12.6) 99 (11.4) 65 (11.2)
 Genitourinary 171 (10.7) 70 (8.1) 48 (8.3)
Interval between hospital admission and ICU admission, days 2 (0–11) 3 (0–14) 3 (0–14)
Cause of respiratory failure
 Pneumonia 535 (33.4) 270 (31.2) 165 (28.4)
 Extrapulmonary sepsis 345 (21.6) 201 (23.2) 165 (28.4)
 ARDS 157 (9.8) 93 (10.8) 66 (11.4)
 CPR 114 (7.1) 73 (8.4) 55 (9.5)
 Coma 88 (5.5) 51 (5.9) 29 (5.0)
 Pulmonary edema 76 (4.8) 20 (2.3) 15 (2.6)
 Ventilatory failure 63 (3.9) 24 (2.8) 12 (2.1)
 Central airway obstruction 55 (3.4) 36 (4.2) 11 (1.9)
 Exacerbation of ILD 35 (2.2) 18 (2.1) 14 (2.4)
 Others 132 (8.3) 79 (9.1) 48 (8.3)
SAPS III on ICU admission 64 (53–77) 66 (55–79) 68 (58–83)
SOFA score on ICU admission 9 (6–13) 11 (8–14) 12 (8–15)
Interval between hospital admission and intubation, days 2 (0–12) 4 (0–16) 4 (0–16)
  1. ICC International Consensus Conference, NW no weaning, WIND Weaning according to a New Definition, ICU intensive care unit, ARDS acute respiratory distress syndrome, ILD interstitial lung disease, CPR cardiopulmonary resuscitation, SAPS III Simplified Acute Physiology Score III, SOFA Sequential Organ Failure Assessment
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