Table 3.
BM macronutrient concentrations and intakes at 6 weeks
| Macronutrients | BM macronutrient concentrations | |||
|---|---|---|---|---|
| Current study | Previous CBGS(12) * | |||
| 6 weeks | 4–8 weeks | |||
| n 59 | n 614 | |||
| Mean | sd | Mean | sd | |
| Carbohydrate (kcal/100 ml) | 25·1 | 1·5 | 34·3 | 1·8 |
| Carbohydrate (% TCC) | 42·3 | 12·8 | 55·2 | 11·3 |
| Fat (kcal/100 ml) | 35·3 | 19·0 | 23·1 | 12·6 |
| Fat (% TCC) | 50·4 | 14·2 | 37·3 | 15·2 |
| Protein (kcal/100 ml) | 4·6 | 0·9 | 4·6 | 0·7 |
| Protein (% TCC) | 7·4 | 1·7 | 7·5 | 1·9 |
| Total calorie concentration (kcal/100 ml) | 64·98 | 19·48 | 61·8 | 13·04 |
BM, breast milk; CBGS-BF, the Cambridge Baby Growth and Breastfeeding Study; % TCC, % total calorie content (calculated as macronutrient energy/total energy concentration).
*
The comparisons of carbohydrate and fat concentrations between current and previous studies reached significance (P < 0·05).
**
BM intake volume was not available in the previous CBGS.