From: Dental fluorosis among people and livestock living on Gihaya Island in Lake Kivu, Rwanda
 |  | Water source | Frequency, n (%) |
---|---|---|---|
Humans (N = 186) | Drinking water | Lake Kivu | 8 (4.3) |
Borehole | 178 (95.7) | ||
Total | 186 (100) | ||
Cooking water | Lake Kivu | 138 (74.2) | |
Borehole | 48 (25.8) | ||
Total | 186 (100) | ||
Livestocka | Drinking water | Lake Kivu | 45 (52.9) |
Borehole | 21 (24.7) | ||
Multiple sources | 19 (22.4) | ||
Total | 85 (100) |