Table 2. Odds ratio for weaning success in 30 days.
| Variables | Weaning outcome |
Unadjusted OR (95%CI) | P value | Adjusted OR (95%CI) | P value | |
|---|---|---|---|---|---|---|
| Success N=69 | Failure N=69 | |||||
| Hemoglobin level, g/dL | ||||||
| <8 | 5 | 16 | 1.00 | |||
| 8-10 | 38 | 33 | 3.69 (1.22-11.15) | 0.02 | 3.30 (1.07-10.15) | 0.04 |
| >10 | 26 | 20 | 4.16 (1.30-13.29) | 0.02 | 2.95 (0.88-9.96) | 0.08 |
| Ptrend | 0.03 | |||||
| Age, yr | ||||||
| <65 | 18 | 18 | 1.00 | |||
| 65-75 | 14 | 24 | 0.58 (0.23-1.48) | 0.26 | ||
| >75 | 37 | 27 | 1.37 (0.60-3.11) | 0.45 | ||
| Sex | ||||||
| female | 31 | 26 | 1.00 | |||
| male | 38 | 43 | 0.74 (0.38-1.46) | 0.39 | ||
| RBC transfusion (Unit/week) | 0.7±1.0 | 0.8±1.1 | 0.94 (0.68-1.30) | 0.71 | ||
| SAPS II, ventilator start | 60±15 | 59±15 | 1.00 (0.98-1.02) | 0.82 | ||
| SAPS II, 1st SBT | 42±12 | 49±16 | 0.97 (0.95-0.99) | 0.02 | 0.97 (0.95-1.00) | 0.05 |
| PaO2/FiO2 ratio | 262±116 | 264±123 | 1.00 (0.99-1.00) | 0.92 | ||
| Comorbidity | ||||||
| Malignancy | 12 | 13 | 0.91 (0.38-2.16) | 0.83 | ||
| Diabetes | 22 | 23 | 0.94 (0.46-1.91) | 0.86 | ||
| Renal insufficiency | 25 | 27 | 0.88 (0.44-1.76) | 0.73 | ||
| Gl bleeding | 12 | 16 | 0.70 (0.30-1.61) | 0.40 | ||
| COPD | 7 | 8 | 0.86 (0.29-2.52) | 0.79 | ||
| CAD | 8 | 11 | 0.69 (0.26-1.84) | 0.46 | ||
CAD = coronary artery disease; COPD = chronic obstructive pulmonary disease; RBC = red blood cells; SAPS = simplified acute physiology score; SBT = spontaneous breathing trial