TABLE 3.
Regression coefficients from general linear models for breast-feeding/pregnancy overlap and other predictors of lactoferrin, lysozyme and IgA concentrations in colostrum and 24-h IgA intake from mature milk of Peruvian women
| Colostrum (d 2), g/L |
Mature milk (1 mo), mg/d |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| log (Lactoferrin) (n = 133) |
log (Lysozyme) (n = 132) |
(log (IgA) n = 132) |
log (IgA) (n = 127) |
|||||||||
| b | SEM | P | b | SEM | P | b | SEM | P | b | SEM | P | |
| Breast-feeding/pregnancy overlap, 1 = yes | −0.234 | 0.086 | 0.008 | 0.266 | 0.126 | 0.036 | −0.052 | 0.092 | 0.575 | −0.283 | 0.093 | 0.003 |
| Time of sample collection,1 d | −0.021 | 0.009 | 0.014 | −0.034 | 0.013 | 0.008 | −0.040 | 0.009 | 0.000 | |||
| Milk volume, g | −0.001 | 0.000 | 0.002 | −0.003 | 0.000 | 0.000 | ||||||
| Summer season, 1 = yes | −0.495 | 0.094 | 0.000 | |||||||||
| Maternal 1-mo calf circumference, mm | 0.034 | 0.015 | 0.021 | |||||||||
| Maternal parity, n | 0.120 | 0.042 | 0.005 | |||||||||
| Toddler’s age, y | −0.126 | 0.061 | 0.041 | |||||||||
| Maternal age, y | −0.023 | 0.010 | 0.028 | |||||||||
| Overlap × Time | 0.018 | 0.010 | 0.084 | 0.025 | 0.015 | 0.110 | 0.020 | 0.011 | 0.077 | |||
| Constant | 1.795 | 0.271 | 0.000 | −3.534 | 0.090 | 0.000 | 1.431 | 0.094 | 0.000 | 4.549 | 0.495 | 0.000 |
| Adjusted R2 | 0.308 | 0.079 | 0.364 | 0.100 | ||||||||
1
Values for time of sample collection were centered at the mean.