Factors contributing to drowning of young males and other adults
| Young males n (%) | Other adults n (%) | Total (N) | Relative risk (95% CI, lower to upper) | P value | |
| Drowning deaths | 378 (27.5) | 996 (72.5) | 1374* | ||
| Medical | 31 (8.2) | 294 (29.5) | 326 | 0.27 (0.19 to 0.39) | <0.001*** |
| Injury | 36 (9.5) | 110 (11.0) | 146 | 0.85 (0.59 to 1.21) | 0.38 |
| None | 311 (82.7) | 592 (59.4) | 903 |
***p<0.001.
*Totals that exceed others presented elsewhere in this paper indicate both medical and injuries contributed to incident.