Table 9.
Multivariate analysis of vitamins, minerals, and trace elements in donor human milk.
| Vitamins | Associated Variables | Beta | SE | t | P > |t| | 95% CI |
|---|---|---|---|---|---|---|
| Free thiamin, B1 (mcg/L) Observations = 113 R2 = 0.12 |
Plasma thiamin (mcg/L) | 10.817 | 4.915 | 2.20 | 0.030 | [1.075, 20.559] |
| Milk and dairy products (average servings/day from the dietary record) | −2.880 | 1.090 | −2.64 | 0.009 | [−5.040, −0.720] | |
| Breastfeeding time (months) |
−0.494 | 0.210 | −2.35 | 0.021 | [−0.911, −0.077] | |
| Free riboflavin, B2 (mcg/L) a
Observations = 100 R2 = 0.21 |
Riboflavin intake (average mg/day from the dietary record) | 20.991 | 8.758 | 2.40 | 0.018 | [3.609, 38.373] |
| Vitamin B2 supplementation during lactation (receiving or not) | 39.742 | 15.258 | 2.60 | 0.011 | [9.459, 70.024] | |
| Pyridoxal, B6 (mcg/L) b
Observations = 106 R2 = 0.17 |
Vitamin B6 supplementation during pregnancy (receiving or not) |
11.629 | 3.114 | 3.73 | <0.001 | [5.454, 17.804] |
| Breastfeeding time (months) | −0.776 | 0.273 | −2.84 | 0.005 | [−1.318, −0.234] | |
| Dehydroascorbic acid (mg/dL) Observations = 112 R2 = 0.15 |
Plasma ascorbic acid (mcM) | −0.014 | 0.005 | −2.92 | 0.004 | [−0.024, −0.005] |
| Fruits (average servings/day from the dietary record) |
0.271 | 0.128 | 2.12 | 0.036 | [0.018, 0.524] | |
| Breastfeeding time (months) | −0.062 | 0.025 | −2.47 | 0.015 | [−0.112, −0.012] | |
| Cholecalciferol (pg/mL) c
Observations = 32 R2 = 0.57 |
Plasma cholecalciferol (pg/mL) | 17.342 | 4.238 | 4.09 | <0.001 | [3.178, 23.510] |
| Milk and dairy products (average servings/day from the dietary record) | 520.533 | 168.819 | 3.08 | 0.005 | [174.722, 866.343] | |
| 25(OH)D3 (pg/mL) d
Observations = 99 R2 = 0.21 |
Plasma 1,25(OH)2 D3 (pg/mL) | 0.156 | 0.042 | 3.73 | <0.001 | [0.073, 0.238] |
| Vitamin D supplementation during lactation (receiving or not) |
35.673 | 12.569 | 2.84 | 0.006 | [10.720, 60.625] | |
| Breastfeeding time (months) | 2.225 | 1.076 | 2.07 | 0.041 | [0.089, 4.360] |
a After a diagnosis of the model, the data entries 110 and 51 were removed. b After a diagnosis of the model, the data entries 2, 32, 37, 46, 55, and 110 were removed. c Adjusted for the average amount of vitamin D supplementation from the dietary record. After a diagnosis of the model, the data entries 22, 26, 40, 41, 53, 102, and 115 were removed. d Adjusted for vitamin D supplementation during gestation (receiving or not). After diagnosis of the model, the data entries 4, 32, and 102 were removed. Abbreviations: SE, standard error.