Table 3. Comparison of Variables on Extubation Outcomea.
| Variable | Extubation Failure | P Value | |
|---|---|---|---|
| Yes | No | ||
| Gender | .034 | ||
| Female | 7 (20.6) | 34 (79.4) | |
| Male | 7 (6.2) | 106 (93.8) | |
| Age, y | .014 | ||
| ≤ 50 | 7 (7) | 93 (93) | |
| > 50 | 7 (12.9) | 47 (87.1) | |
| Duration of MV, h | 127.3 ± 34.3 | 136.2 ± 41.6 | .438 |
| Hematocrit | .507 | ||
| 21% - 27% | 5 (8.9) | 51 (91.1) | |
| > 27% | 9 (9.2) | 89 (90.8) | |
| Attempts of suction | 9.8 ± 2.5 | 8 ± 2.8 | .031 |
| P/F ratio-B | .512 | ||
| < 200 | 0 | 8 | |
| 200 - 300 | 2 | 26 | |
| > 300 | 12 | 106 | |
| P/F ratio-D | 186.5 ± 210.8 | 205.9 ± 279.2 | .403 |
| PaO 2 -D | 63.4 ± 82.6 | 65.6 ± 59.9 | .259 |
| Suction No. b | .331 | ||
| ≤ 10 | 7 | 100 | |
| > 10 | 7 | 40 | |
| RSBI | .864 | ||
| ≤ 75 | 4 | 53 | |
| > 75 | 10 | 87 | |
Abbreviations: APACHE II, acute physiology and chronic health evaluation 2 score; MAP-b, mean arterial pressure before extubation; MV, mechanical ventilation; P/F Ratio-B, P/F ratio before extubation; P/F Ratio-D, difference between P/F ratio before and after extubation; PaO2-D: difference between PaO2 before and after extubation; Suction No., attempts of tracheal suction per day.
aValues are presented as mean ± SD or No. (%).
bSuction No: attempts of tracheal suction per day.