Breast fed | Formula fed | |||||
---|---|---|---|---|---|---|
6 weeks | 12 weeks | 26 weeks | 6 weeks | 12 weeks | 26 weeks | |
Breast feeding is defined as predominantly breast fed to 6 weeks. | ||||||
*p<0.05, **p<0.001 for age of solid food introduction, AGA v SGA at the same age. | ||||||
AGA, Appropriate size for gestational age; SGA, small for gestational age. | ||||||
AGA | 12/390 | 2116/388 | 380/388 | 40/434 | 300/420 | 400/405 |
Data combined (three studies) | 3.1% | 55.7% | 97.9% | 9.2% | 71.4% | 98.8% |
SGA | 2/179 | 55/172** | 175/176 | 7/233** | 153/248* | 256/264 |
Data combined (two studies) | 1.1% | 32.0% | 99.4% | 3.0% | 61.7% | 97% |