TABLE 3. Mean ± SE for milk composition, gross energy, and milk yield value at one and 3.5 months of infant age (N = 58).
1 month | 3.5 months | |||||
---|---|---|---|---|---|---|
Mean ± SE | Range | Mean ± SE | Range | t | P | |
Milk composition | ||||||
Fat (%) | 4.6 ± 0.2 | 2.2–11.7 | 6.2 ± 0.2 | 3.2–14.2 | 8.32 | <0.0001 |
Protein (%) | 1.8 ± 0.03 | 1.4–2.5 | 2.1 ± 0.04 | 1.6–3.0 | 7.58 | <0.0001 |
Sugars (%) | 7.6 ± 0.04 | 6.6–8.2 | 7.5 ± 0.04 | 6.3–8.1 | −3.08 | 0.003 |
GE (kcal/g) | 0.83 ± 0.02 | 0.6–1.5 | 0.99 ± 0.02 | 0.7–1.7 | 8.72 | <0.0001 |
Milk yield value (g) | 11.4 ± 0.6 | 3.8–22.6 | 17.0 ± 1.0 | 4.9–33.8 | 8.24 | <0.0001 |
Milk composition, energy density, and yield changed significantly between the two time points.