Table 3.
Comparison of parameters between the success group and failure group
| Total | Success | Failure | p value | |
|---|---|---|---|---|
| n = 173 | n = 162 | n = 11 | ||
| Female, n (%) | 59 (34.1) | 55 (34.0) | 4 (36.4) | 0.696* |
| Age (years) | 68.2 ± 12.8 | 68.2 ± 12.9 | 69.3 ± 11.7 | 0.854 |
| APACHE II score | 17.6 ± 5.7 | 17.2 ± 5.3 | 23.4 ± 8.7 | 0.015 |
| BMI | 23.9 ± 4.2 | 24.1 ± 4.2 | 22.1 ± 3.8 | 0.075 |
| HR (bpm) | 77 ± 13.5 | 76.3 ± 13.1 | 87.1 ± 15.6 | 0.018 |
| RR (/min) | 16.1 ± 4.7 | 15.7 ± 4.1 | 23.3 ± 7.0 | 0.000 |
| TV (mL) | 457.4 ± 102.3 | 461 ± 98.8 | 405.4 ± 140.6 | 0.031 |
| RSBI | 38.4 ± 18.3 | 36.6 ± 15.7 | 64.3 ± 31.8 | 0.002 |
| PEEP (cmH2O) | 6.1 ± 1.4 | 6.2 ± 1.3 | 5.3 ± 2.4 | 0.065 |
| SpO2 (%) | 99.2 ± 1.0 | 99.2 ± 0.98 | 98.6 ± 1.4 | 0.076 |
| EtCO2 (mmHg) | 39.3 ± 5.2 | 39.4 ± 4.8 | 37.8 ± 9.3 | 0.828 |
| LTC (mL/cmH2O) | 70.1 ± 23.6 | 71.9 ± 23.0 | 43.3 ± 14.6 | < 0.0001 |
Mann-Whitney U Test was applied. *Fischer’s exact test was applied for the comparison of ratios. From age to LTC, data were expressed as mean ± standard deviation
APACHE II score Acute Physiology and Chronic Health Evaluation II score, BMI body mass index, HR heart rate, RR respiratory rate, TV tidal volume, RSBI rapid shallow breathing index, PEEP positive end-expiratory pressure, SpO2 arterial oxygen saturation, EtCO2 end-tidal carbon dioxide, LTC lung-thorax compliance