Chapter 3. Infant Feeding |
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Table 3.4. Percent of babies who were exclusively breastfed in the past 7 days by infant age and selected demographics1 Infant Feeding Practices Study II |
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| Infant age in months | ||||||||||
| Neonatal | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 10 | 12 | |
| ALL(n) | 3,002 | 2,546 | 2,381 | 2,232 | 2,178 | 2,092 | 2,017 | 1,942 | 1,804 | 1,802 |
| (%) | 38.8 | 38.1 | 36.0 | 27.7 | 14.0 | 4.3 | 1.0 | 0.2 | 0.3 | 0.0 |
| Age | ||||||||||
| 18-24 | 22.9 | 24.3 | 20.7 | 15.1 | 7.1 | 2.0 | 0.6 | 0.0 | 0.0 | 0.0 |
| 25-29 | 44.3 | 43.7 | 40.1 | 31.0 | 17.2 | 6.3 | 1.7 | 0.2 | 0.3 | 0.0 |
| 30-34 | 44.2 | 41.3 | 40.3 | 30.8 | 13.7 | 4.3 | 0.8 | 0.0 | 0.2 | 0.0 |
| 35+ | 41.0 | 39.4 | 39.3 | 30.7 | 15.5 | 3.3 | 0.5 | 0.6 | 0.9 | 0.0 |
| Parity | ||||||||||
| Primiparous | 34.8 | 33.3 | 29.4 | 21.4 | 9.7 | 3.2 | 0.5 | 0.2 | 0.4 | 0.0 |
| Multiparous | 41.3 | 40.6 | 39.3 | 30.8 | 16.0 | 4.9 | 1.1 | 0.1 | 0.3 | 0.0 |
| Education | ||||||||||
| HS or less | 24.6 | 24.0 | 22.4 | 14.9 | 7.0 | 1.8 | 0.3 | 0.0 | 0.3 | 0.0 |
| Some college | 36.5 | 35.0 | 32.5 | 24.7 | 12.3 | 4.2 | 1.0 | 0.3 | 0.5 | 0.0 |
| College graduate | 53.5 | 51.7 | 48.7 | 38.6 | 19.7 | 6.0 | 1.2 | 0.1 | 0.3 | 0.0 |
| Income (% of poverty) | ||||||||||
| < 185% | 33.5 | 33.1 | 32.3 | 25.3 | 13.1 | 4.3 | 0.9 | 0.1 | 0.7 | 0.0 |
| 185- < 350% | 41.2 | 41.5 | 39.0 | 31.6 | 15.2 | 4.3 | 1.1 | 0.3 | 0.2 | 0.0 |
| >=350% | 44.7 | 41.6 | 37.7 | 26.0 | 13.6 | 4.6 | 1.0 | 0.0 | 0.0 | 0.0 |
| WIC Participant | ||||||||||
| No | 26.2 | 46.1 | 43.9 | 34.1 | 16.8 | 5.0 | 1.1 | 0.2 | 0.2 | 0.0 |
| Yes | 47.3 | 25.5 | 23.0 | 16.9 | 9.1 | 3.3 | 0.8 | 0.1 | 0.6 | 0.0 |
| Race | ||||||||||
| White | 41.4 | 39.7 | 38.2 | 30.0 | 14.7 | 5.1 | 1.1 | 0.2 | 0.4 | 0.0 |
| Black | 13.6 | 24.5 | 16.3 | 8.0 | 5.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Hispanic | 29.7 | 30.6 | 25.0 | 12.5 | 7.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Region | ||||||||||
| Northeast | 37.1 | 32.7 | 33.2 | 24.5 | 12.7 | 4.5 | 0.8 | 0.0 | 0.3 | 0.0 |
| Midwest | 39.2 | 37.8 | 35.4 | 27.0 | 14.3 | 3.8 | 1.0 | 0.2 | 0.4 | 0.0 |
| South | 32.9 | 33.5 | 30.4 | 23.5 | 10.5 | 3.8 | 1.0 | 0.2 | 0.4 | 0.0 |
| West | 49.0 | 50.5 | 48.1 | 38.5 | 20.2 | 6.0 | 1.2 | 0.3 | 0.3 | 0.0 |
1Table is based on variables: N40A-I, M2A1A-S, M3A1A-S, M4A1A-S, M5A1A-S, M6A1A-S, M7A1A-R, M9A1A-R, MXA1A-R, MWA1A-R |
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