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Table 2 Comparison of the distribution of the main diagnostic reasons for ventilation in the entire study population and in the two sub-groups (N (%))

From: Elderly patients undergoing mechanical ventilation in and out of intensive care units: a comparative, prospective study of 579 ventilations

Variable All
N = 579
ICU ventilations
N = 283
Non-ICU ventilations
N = 296
P
Respiratory insufficiency secondary to sepsis 169 (29.2) 68 (24.0) 101 (34.1) 0.01
Pulmonary edema 89 (15.4) 53 (18.7) 36 (12.2) 0.04
Community-acquired pneumonia 69 (11.9) 24 (8.4) 45 (15.2) 0.02
Acute exacerbation of COPD 44 (7.6) 21 (7.4) 23 (7.8) 0.99
Respiratory insufficiency following cardiopulmonary arrest 43 (7.4) 22 (7.8) 21 (7.1) 0.88
Hospital-acquired pneumonia 24 (4.1) 11 (3.9) 13 (4.4) 0.92
Cardiogenic shock 17 (2.9) 15 (5.3) 2 (0.7) < 0.003
Total 455 (78.6) 214 (75.6) 241 (81.4)