Table A1.
Frequency of mouthing hands, objects, foods, water, soil, and feces, by age group, for all locations combined.
| Object Super-Category | Mouthing Frequency (Contacts/h) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age Group | ||||||||||||
| 3–6 Months (n = 21) | 6–12 Months (n = 104) | 12–18 Months (n = 23) | ||||||||||
| Mean | Median | Min | Max | Mean | Median | Min | Max | Mean | Median | Min | Max | |
| Hands | 39.5 | 37.3 | 6.5 | 93.6 | 35.8 | 34.4 | 3.7 | 90.0 | 32.3 | 29.7 | 7.9 | 80.7 |
| Objects | 29.6 | 23.1 | 4.7 | 73.6 | 31.6 | 29.6 | 2.0 | 94.6 | 17.0 | 15.2 | 2.7 | 42.4 |
| Cloth | 10.9 | 10.4 | 3.4 | 24.7 | 9.3 | 8.3 | 0.0 | 45.1 | 5.1 | 3.9 | 1.7 | 13.4 |
| Other objects | 18.7 | 9.0 | 0.0 | 52.6 | 22.2 | 20.7 | 1.3 | 79.5 | 12.0 | 8.8 | 0.9 | 38.5 |
| Dietary intake (mouthfuls) | 6.8 | 6.9 | 0.0 | 26.2 | 14.5 | 12.8 | 0.0 | 56.6 | 20.0 | 16.6 | 6.1 | 46.5 |
| Water ingestion (# of times) | 1.6 | 0.7 | 0.0 | 7.4 | 3.2 | 2.4 | 0.0 | 15.1 | 4.6 | 3.8 | 1.1 | 16.3 |
| Soil ingestion | 0.1 | 0.0 | 0.0 | 0.7 | 0.3 | 0.0 | 0.0 | 5.5 | 0.3 | 0.0 | 0.0 | 1.6 |
| Feces ingestion | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 0.0 | 0.0 | 0.0 | 0.2 |