Table 4.
Prognostic factors associated with poisoning fatality.
| Parameters | Full model OR (95% CI) | Final Model 1* OR (95%CI) | Final Model 2* OR (95%CI) |
| Exposure to paraquat | 116.0 (54.6–246.3) | 192.3 (64.3–574.5) | 194.4 (62.8–601.6) |
| Exposure to blasticidin-S | 47.5 (4.2–530.7) | - | - |
| Exposure to KCN | 47.5 (4.2–530.7) | - | - |
| Exposure to carbamates | 4.2 (1.4–12.5) | - | - |
| Exposure to CO | 4.1 (1.7–10.2) | - | - |
| Exposure to organophosphates | 2.5 (1.1–5.8) | - | - |
| Exposure to hypnotics and sedatives | 0.10 (0.03–0.32) | 0.10 (0.01–0.82) | 0.12 (0.02–0.91) |
| Insufficient respiration | 17.7 (10.1–31.3) | 7.6 (2.8–20.3) | 7.6 (2.9–19.7) |
| Shock status | 13.6 (6.8–27.3) | 22.0 (6.2–77.9) | - |
| Abnormal heart rates | 5.0 (3.0–8.5) | - | 3.8 (1.4–10.5) |
| Abnormal body temperature | 4.6 (2.6–7.9) | 4.4 (1.8–10.7) | 4.0 (1.7–9.5) |
| Consciousness level (GCS < 10) | 4.5 (2.6–7.6) | - | - |
| Suicidal intent | 6.3 (2.5 – 15.7) | 7.5 (2.1 – 26.9) | 9.9 (2.7 – 35.9) |
| Age ≥ 61 years | 4.3 (2.6 – 7.2) | 5.1 (2.0 – 12.6) | 5.6 (2.3 – 13.8) |
| History of chronic or major diseases | 2.7 (1.6 – 2.5) | - | - |
| Male gender | 2.5 (1.5 – 4.3) | - | - |
Notes: OR = odds ratio; CI = confidence interval; 'insufficient respiration' is defined as a respiratory rate of > 24 or < 10 breaths per minute, or requiring intubation; 'shock status' is defined as a systolic blood pressure <90 mmHg; 'abnormal heart rates' is defined as tachycardia (> 120 beats/min) or bradycardia (< 60 beats/min); 'abnormal body temperature' is defined as hyperthermia (body temperature ≥ 37.5°C) or hypothermia (body temperature < 36.0°C).
*The full models included all parameters with a p value < 0.05, but because 'abnormal heart rate' and 'shock status' were correlated, only one of the two parameters was included in each of the two models.