Age | Liquid, n | Powders, n | Pills or tablets, n | Number of interviews, n |
---|---|---|---|---|
Wave 1 | ||||
 6 months to 5 years a | 1 | 1 | 0 | 2 |
 6–7 years b | 1 | 2 | 0 | 3 |
 8–11 years b | 2 | 0 | 3 | 5 |
 12–17 years c | 1e | 0 | 1 | 2 |
 Subtotal | 5 | 3 | 4 | 12 |
Wave 2 | ||||
 6 months to 5 years a | 2 | 2d | 2 | 6 |
 6–7 years b | 0 | 0 | 0 | 0 |
 8–11 years b | 1 | 1 | 1 | 3 |
 12–17 years c | 2 | 1 | 1 | 4 |
 Subtotal | 5 | 4 | 4 | 13 |
Wave 3 | ||||
 6 months to 5 years a | 1 | 2 | 2 | 5 |
 6–7 years b | 0 | 1 | 0 | 1 |
 8–11 years b | 0 | 1 | 0 | 1 |
 12–17 years c | 1 | 1 | 2 | 4 |
 Subtotal | 2 | 5 | 4 | 11 |
Wave 4 e | ||||
 8–11 years b | 4 | 4 | 4 | 12 |
 Subtotal | 4 | 4 | 4 | 12 |
Total | 16 | 16 | 16 | 48 |