Table 2.
Feeding groups | ||||||||
---|---|---|---|---|---|---|---|---|
Variable and age | n | BM | LFM | HFM | Pa | Pb | Pc | Pd |
Body Weight (kg) | 610(55.5) | 363(33.2) | 120(11.0) | |||||
At birth | 1093 | 3.33 ± 0.39 | 3.34 ± 0.38 | 3.36 ± 0.42 | 0.782 | 0.890 | 0.483 | 0.563 |
3mo | 1085 | 6.93 ± 0.84 | 6.90 ± 0.79 | 7.12 ± 0.72 | 0.029 | 0.515 | 0.019 | 0.009 |
6mo | 1093 | 8.51 ± 1.00 | 8.61 ± 1.02 | 8.85 ± 0.87 | 0.002 | 0.118 | 0.022 | 0.022 |
12mo | 1093 | 10.11 ± 1.07 | 10.4 ± 1.10 | 10.73 ± 0.99 | <0.001 | <0.001 | <0.001 | 0.004 |
Body Length (cm) | ||||||||
At birth | 1093 | 50.1 ± 1.24 | 50.28 ± 1.31 | 50.11 ± 1.28 | 0.095 | 0.035 | 0.963 | 0.199 |
3mo | 1085 | 62.34 ± 2.16 | 62.5 ± 2.3 | 63.07 ± 2.47 | 0.005 | 0.275 | 0.001 | 0.016 |
6mo | 1093 | 68.34 ± 2.33 | 68.64 ± 2.45 | 69.04 ± 2.51 | 0.007 | 0.057 | 0.004 | 0.117 |
12mo | 1093 | 76.35 ± 2.41 | 76.92 ± 2.85 | 77.46 ± 2.61 | <0.001 | <0.001 | <0.001 | 0.045 |
WLZ | ||||||||
At birth | 1093 | −0.19 ± 1.03 | −0.29 ± 0.99 | −0.1 ± 1.00 | 0.147 | 0.143 | 0.369 | 0.076 |
3mo | 1085 | 0.64 ± 1.08 | 0.51 ± 0.97 | 0.65 ± 0.8 | 0.150 | 0.064 | 0.198 | 0.198 |
6mo | 1093 | 0.74 ± 1.02 | 0.76 ± 0.98 | 0.96 ± 0.93 | 0.080 | 0.749 | 0.055 | 0.055 |
12mo | 1093 | 0.56 ± 0.93 | 0.73 ± 0.91 | 0.96 ± 0.81 | <0.001 | 0.003 | <0.001 | 0.020 |
BAZ | ||||||||
At birth | 1093 | −0.15 ± 1.01 | −0.21 ± 0.96 | −0.08 ± 1 | 0.387 | 0.326 | 0.488 | 0.202 |
3mo | 1085 | 0.68 ± 1.07 | 0.55 ± 0.95 | 0.7 ± 0.77 | 0.105 | 0.047 | 0.816 | 0.140 |
6mo | 1093 | 0.64 ± 1.03 | 0.66 ± 1 | 0.86 ± 0.94 | 0.098 | 0.828 | 0.033 | 0.593 |
12mo | 1093 | 0.5 ± 0.95 | 0.65 ± 0.93 | 0.83 ± 0.83 | <0.001 | 0.012 | <0.001 | 0.061 |
aOne-way ANOVA for continuous variables were used to compare the 3 groups
bComparison between BM and LFM.c Comparison between BM and HFM.d Comparison between LFM and HFM.BM, no formula milk; LFM, <840 ml formula milk/d; HFM,≥840 ml formula milk/d; WLZ, weight-for-length z-scores; BAZ, BMI-for-age z score