Table 2

Mean (SD), range and percentage below and above RDA for prenatal micronutrient intake from supplementation in pregnant women with postpartum EPDS<10 & EPDS≥10
Nutrient EPDS<10 EPDS≥10 p-value*
(n=416) (n=59)
Vitamin B1 (mg)
Mean (SD) 5.5 (14.7) 3.5 (8.1) 0.12
Range 0 – 103 0 – 62.5
Below RDA (n (%)) 55 (84.6) 10 (15.4)
Above RDA (n (%)) 361 (88.1) 49 (11.9)
Vitamin B3 (mg)
Mean (SD) 22 (23) 19 (10) 0.10
Range 0 – 335 0 – 66
Below RDA (n (%)) 55 (82.1) 12 (17.9)
Above RDA (n (%)) 361 (88.5) 47 (11.5)
Vitamin B6 (mg)
Mean (SD) 9.1 (15.9) 7.8 (10.7) 0.43
Range 0 – 110 0 – 62.5
Below RDA (n (%)) 23 (79.3) 6 (20.7)
Above RDA (n (%)) 363 (88.1) 49 (11.9)
Vitamin B9 (mcg)
Mean (SD) 1259 (924) 1297 (962) 0.78
Range 0 – 6000 0 – 5000
Below RDA (n (%)) 30 (81.1) 7 (18.9)
Above RDA (n (%)) 386 (88.1) 52 (11.9)
Vitamin B12 (mcg)
Mean (SD) 31 (116) 18 (65) 0.23
Range 0 – 1210 0 – 502
Below RDA (n (%)) 19 (79.2) 5 (20.8)
Above RDA (n (%)) 397 (88.0) 54 (12.0)
Vitamin D (IU)
Mean (SD) 618 (539) 567 (512) 0.48
Range 0 – 4200 0 – 2750
Below RDA (n (%)) 292 (87.7) 41 (12.3)
Above RDA (n (%)) 124 (87.3) 18 (12.7)
Iodine (mcg)
Mean (SD) 173 (68) 158 (76) 0.15
Range 0 – 636 0 – 330
Below RDA (n (%)) 227 (85.7) 38 (14.3)
Above RDA (n (%)) 189 (90.0) 21 (10.0)
Iron (mg)
Mean (SD) 33 (20) 32 (20) 0.84
Range 0 – 127 0 – 87
Below RDA (n (%)) 68 (82.9) 14 (17.1)
Above RDA (n (%)) 348 (88.5) 45 (11.5)
Magnesium (mg)
Mean (SD) 67 (65) 59 (39) 0.19
Range 0 – 1025 0 – 208
Below RDA (n (%)) 415 (87.5) 59 (12.5)
Above RDA (n (%)) 1 (100.0) 0
Selenium (mcg)
Mean (SD) 25 (17) 19 (13) 0.0015
Range 0 – 125 0 – 45
Below RDA (n (%)) 401 (87.2) 59 (12.8)
Above RDA (n (%)) 15 (100.0) 0
Zinc (mg)
Mean (SD) 13 (8) 12 (8) 0.38
Range 0 – 48 0 – 32
Below RDA (n (%)) 233 (87.9) 32 (12.1)
Above RDA (n (%)) 183 (87.1) 27 (12.9)
Omega-3 (mg)
Mean (SD) 180 (440) 90 (208) 0.01
Range 0 – 4050 0 – 1000
Below RDA (n (%)) RDA not determined RDA not determined
Above RDA (n (%))

Note: RDA (Recommended Dietary Allowance) for pregnant women is “the average daily nutrient intake level sufficient to meet the nutrient requirement of nearly all (97– 98%) healthy individuals in a particular life stage and gender group” as defined by the Institute of Medicine (55). The percentages below and above RDA are calculated from supplements alone and does not account for dietary intake.

SD = Standard deviation.

* p values derived from t-tests.

Leung et al.

Leung et al. BMC Pregnancy and Childbirth 2013 13:2   doi:10.1186/1471-2393-13-2

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