Table 3.
Daily intake of key micronutrients from natural health products by APrON participants
| Micronutrient | First trimester (n = 136) | Second trimester (n = 575) | Third trimester (n = 516) | |||||
|---|---|---|---|---|---|---|---|---|
| RDA | Mean ± SD | Median (min, max) | Mean ± SD | Median (min, max) | Mean ± SD | Median (min, max) | P * | |
| Folic acid (μg) | 600 μg | 1225 ± 866 | 1 000 (0, 6 000 μg) | 1353 ± 1110 | 1000 (0, 7100 μg) | 1228 ± 1029 | 1000 (0, 6023 μg) | 0.126 |
| (% RDA) | 204 ± 144 | 225 ± 184 | 204 ± 171 | |||||
| Vitamin D (IU) | 600 IU | 789 ± 1302 | 400 (0, 12 600 IU) | 645 ± 670 | 400 (0, 6000 IU) | 746 ± 1002 | 400 (0, 9500 IU) | 0.084 |
| (% RDA) | 131 ± 217 | 107 ± 111 | 124 ± 166 | |||||
| Calcium (mg) | 1000 mg | 313 ± 313 | 250 (0, 2 300 mg) | 339 ± 297 | 250 (0, 2300 mg) | 352 ± 339 | 250 (0, 2300 mg) | 0.421 |
| (% RDA) | 31 ± 31 | 33 ± 29 | 35 ± 33 | |||||
| Iron (mg) | 27 mg | 28 ± 17a | 27 (0, 160 mg) | 30 ± 21a | 27 (0,187 mg) | 39 ± 33b | 27 (0, 227 mg) | <0.001 † |
| (% RDA) | 104 ± 61 | 112 ± 76 | 143 ± 124 | |||||
APrON, Alberta Pregnancy Outcomes and Nutrition; Max, maximum; Min, minimum; RDA, recommended dietary allowance (Institute of Medicine 1998, 2001); SD, standard deviation. *P value for analysis of variance used to compare mean supplement intake between trimesters. †Significant differences for iron between groups determined by Bonferroni post‐hoc tests. Values within a row with different superscripts are significantly different