Type of exposure of all cases by gender
| Type for exposure | Male | Female | Total | χ2 test | ||||
| n | % | n | % | n | % | χ2 | P values | |
| Suicidal | 1040 | 45.3 | 1802 | 66.4 | 2842 | 56.7 | 226.086 | 0.000 |
| Abusive | 782 | 34.1 | 323 | 11.9 | 1105 | 22.1 | 354.968 | 0.000 |
| Accidental | 451 | 19.6 | 566 | 20.9 | 1017 | 20.3 | 1.143 | 0.285 |
| Environmental | 303 | 13.2 | 387 | 14.3 | 690 | 13.8 | 1.622 | 0.203 |
| Misuse | 97 | 4.2 | 106 | 3.9 | 203 | 4.1 | 0.323 | 0.570 |
| Food poisoning | 35 | 1.5 | 53 | 2.0 | 88 | 1.8 | 1.327 | 0.249 |
| Adverse reaction | 16 | 0.7 | 20 | 0.7 | 36 | 0.7 | 0.028 | 0.866 |
| Unknown | 23 | 1.0 | 22 | 0.8 | 45 | 0.9 | 0.509 | 0.476 |
| Subtotal | 2296 | 100.0 | 2713 | 100.0 | 5009 | 100.0 | ||
χ2, Chi-square; Significance of p values are in bold.