Table 3.
Logistic regression models of APACHE II score and parameters assessing acid-base status in predicting mortality in patients with acute pesticide poisoning.
| Variables | Univariable | Multivariable | ||
|---|---|---|---|---|
| Odds Ratio | p-Value | Odds Ratio | p-Value | |
| APACHE II | 1.20 (1.16–1.24) | <0.001 | – | – |
| BE | 0.83 (0.80–0.86) | <0.001 | 0.79 (0.71–0.88) | <0.001 |
| corAG | 1.17 (1.14–1.22) | <0.001 | 1.28 (1.11–1.48) | <0.001 |
| SIDa | 1.16 (1.10–1.23) | <0.001 | 0.86 (0.74–0.99) | 0.043 |
| SIDe | 0.81 (0.77–0.85) | <0.001 | 1.42 (1.17–1.73) | <0.001 |
| SIG | 1.16 (1.13–1.21) | <0.001 | NA | NA |
| ATot | 1.45 (1.11–1.88) | 0.005 | 0.83 (0.60–1.15) | 0.277 |
| pCO2 | 1.02 (1.00–1.04) | 0.069 | – | – |
SIG was calculated by subtracting SIDe from SIDa and the three variables could not be input into the multivariable model concurrently. Abbreviations: APACHE, acute physiology and chronic health evaluation; BE, base excess; corAG, corrected anion gap; SIDa, apparent strong ion difference; SIDe, effective strong ion difference; SIG, strong ion gap; ATot, total concentration of serum weak acids; pCO2, partial pressure of carbon dioxide; NA, not available.