Location | Year | 6 weeks | 3 months | 4 months |
---|---|---|---|---|
Data derived from Foster et al,12 Hamlyn et al,13 and Wharton.24 | ||||
England | 1975 All infants | 40 | 85 | 97 |
Great Britain | 1980 All infants | 14 | 52 | 89 |
Great Britain | 1985 All infants | 11 | 62 | 90 |
Great Britain | 1990 All infants | 9 | 68 | 94 |
Great Britain | 1995 Human milk only | 1 | 30 | 84 |
Great Britain | 1995 No human milk | 9 | 63 | 93 |
Great Britain | 2000 Human milk only | 1 | 12 | 79 |
Great Britain | 2000 No human milk | 3 | 28 | 88 |