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. 2021 Jan 21;13(2):303. doi: 10.3390/nu13020303

Table 5.

Correlations between maternal diet and supplementation and concentrations of iron and zinc in HM.

Energy and Nutrients in Maternal Diets Mean ± SD Median (Interquartile Ranges) Spearman/Pearson Correlation Coefficient r 1
HM Iron
Concentration
HM Zinc
Concentration
Energy (kcal) 1831 ± 485. 1841 (1493–2104) −0.201 −0.148
Protein (g) 78.6 ± 22.3 78.1 (61.8–92.4) −0.011 0.12
Protein (% kcal) 17.5 ± 3.5 17.8 (14.7–19.9) 0.14 0.388
Fat (g) 63.8 ± 21 62.7 (50.4–73.9) −0.184 −0.165
Fat (% kcal) 31 ± 5.9 30.1 (27.4–34.4) 0.045 −0.308
PUFA (g) 0.33 ± 0.49 0.08 (0.04–0.46) −0.028 0.03
Carbohydrates (g) 255.1 ± 72.1 267.3 (190.3–296.7) −0.183 0.009
Carbohydrates (% kcal) 51.5 ± 6.6 52.1 (48.1–55.7) −0.149 −0.145
Sucrose (g) 49.6 ± 32.5 39.5 (24.3–61.4) 0.003 −0.167
Lactose (g) 13.2 ± 11.6 11.8 (5.3–20.5) 0.026 −0.167
Fiber (g) 21.3 ± 5.9 20.8 (16.8–25.4) −0.023 −0.012
Sodium (mg) 2666 ± 874 2620 (2062–3160) 0.241 −0.001
Potassium (mg) 3023 ± 659 2924 (2516–3476) −0.001 0.017
Calcium (mg) 746 ± 358 710 (517–914) 0.129 −0.113
Phosphorus (mg) 1331 ± 356 1288 (1042–1482) −0.012 −0.112
Magnesium (mg) 317 ± 83 306 (267–336) −0.089 −0.088
Iron (mg) 11.2 ± 2.8 10.9 (9.3–13) −0.055 <0.001
Iron 2 (mg) 29.2 ± 20.3 17.5 (11.6–46.7) 0.258 0.452
Zinc (mg) 9.9 ± 1.8 9.6 (8.8–11) 0.104 0.001
Zinc 2 (mg) 13.6 ± 9 9.8 (9–12.3) 0.237 0.688 *
Iodine (µg) 106.3 ± 34.6 102.2 (86.3–127.2) 0.124 0.067
Vitamin A (µg) 1160.5 ± 579 1023.9 (825.8–1275.1) −0.134 −0.4
Vitamin D (µg) 3 ± 2.4 1.9 (1.3–3.5) 0.081 0.366
Vitamin E (mg) 10.1 ± 4.2 9.3 (6.7–12.9) 0.129 −0.181
Vitamin B1 (mg) 1.2 ± 0.4 1.1 (1–1.3) −0.199 −0.188
Vitamin B2 (mg) 1.7 ± 0.6 1.7 (1.3–2) 0.02 0.135
Vitamin PP (mg) 15.7 ± 6.1 14.6 (10.8–17.7) −0.071 0.341
Vitamin B6 (mg) 1.8 ± 0.5 1.7 (1.4–2.1) −0.074 0.13
Folic acid (mg) 300.3 ± 82.6 281.1 (239.2–371.3) 0.04 0.007
Vitamin B12 (µg) 3.7 ± 1.7 3.4 (2.3–4.7) 0.061 0.245
Vitamin C (mg) 125 ± 106.7 92 (63.6–130.8) 0.154 0.437

1 Spearman and Pearson Correlation Coefficient were used depending on variable distribution. 2 Diet + supplementation. * p < 0.05.