Proportional distribution of ICD-10 codes allocated to drowning deaths
| ICD-10 codes | All sites located on the mainland (13 sites) | All sites located on the Indian Ocean coastline (four sites) | All sites located near a major lake (seven sites) | Population-based data (combined)* | ||||
| N | % | N | % | N | % | N | % | |
| V90 | 1 | 0.6 | 1 | 3.0 | 3 | 5.9 | 5 | 2.1 |
| V92 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| W65 | 1 | 0.6 | 0 | 0.0 | 1 | 2.0 | 2 | 0.8 |
| W66 | 1 | 0.6 | 0 | 0.0 | 0 | 0.0 | 1 | 0.4 |
| W67 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| W68 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| W69 | 39 | 25.2 | 18 | 54.5 | 14 | 27.5 | 71 | 29.7 |
| W70 | 13 | 8.4 | 5 | 15.2 | 5 | 9.8 | 23 | 9.6 |
| W73 | 17 | 11.0 | 3 | 9.1 | 7 | 13.7 | 27 | 11.3 |
| W74 | 57 | 36.8 | 4 | 12.1 | 15 | 29.4 | 76 | 31.8 |
| X36 | 21 | 13.5 | 0 | 0.0 | 0 | 0.0 | 21 | 8.8 |
| X37 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| X38 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| X39 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| X71 | 1 | 0.6 | 0 | 0.0 | 2 | 3.9 | 3 | 1.3 |
| X92 | 3 | 1.9 | 0 | 0.0 | 2 | 3.9 | 5 | 2.1 |
| Y21 | 1 | 0.6 | 2 | 6.1 | 2 | 3.9 | 5 | 2.1 |
| Total W65-W74 | 128 | 82.6 | 30 | 90.9 | 42 | 82.4 | 200 | 83.7 |
| Total V90-Y21 | 155 | 100.0 | 33 | 100.0 | 51 | 100.0 | 239 | 100.0 |
*Ifakara HDSS, Rufiji HDSS, SAVVY survey, Kaatano et al, 200912.
HDSS, Health and Demographic Surveillance Systems; ICD-10, International Classification of Diseases 10th revision; SAVVY, Sample Vital registration with Verbal autopsy.