From: Acute respiratory failure in the elderly: etiology, emergency diagnosis and prognosis
Variables | Alive (n = 434) | Dead (n = 80) | Adjusted odds ratio | p |
---|---|---|---|---|
Inappropriate treatment in the ED | 73/434 (17) | 28/80 (35) | 2.83 [1.48–5.41] | 0.002 |
PaCO2 ≥ 45 mmHg | 90/414 (21) | 29/73 (40) | 0.004 | |
PaCO2 (mmHg) | 41 ± 13 (n = 414) | 44 ± 14 (n = 73) | 2.79 [1.39–5.58] | |
Creatinine clearance ≤ 50 ml minute-1 | 191/410 (47) | 48/74 (65) | 0.013 | |
Creatinine clearance (ml minute-1) | 54 ± 26 (n = 410) | 43 ± 18 (n = 74) | 2.37 [1.20–4.71] | |
Elevated natriuretic peptide | 148/317 (47) | 43/58 (74) | 2.06 [1.01–4.18] | 0.046 |
BNP (pg ml-1) | 148 [102–178] (n = 275) | 371 [237–503] (n = 54) | ||
ProBNP (pg ml-1) | 1,172 [748–1,700] (n = 208) | 4,084 [1,317–7,887] (n = 38) | ||
Clinical signs of acute ventilatory failure | 91/434 (21) | 36/80 (45) | 1.98 [1.01–3.90] | 0.047 |