Table 7

Micronutrient deficiencies among pregnant Peruvian women in comparison with pregnant women from 2003–04 NHANES1-2
Biochemical indicators Deficient cut-off concentration Peruvian pregnant women NHANES pregnant women
Trimester 1 Trimester 2 Trimester 3
Deficient Total %3 Deficient Total % Deficient Total % Deficient Total %
Ferritin ≤ 15 ng/mL4 (33.7 pmol/L) 5 78 6.4 27 61 44.3 38 53 71.7 92 250 36.8
Selenium ≤ 70 ng/mL (0.90 μmol/L)5 0 78 0.0 0 64 0.0 1 62 1.6 0 2 0.0
Transferrin saturation ≤ 16%4 10 78 12.8 29 63 46.0 31 40 77.5 100 251 39.8

1Of the 16 maternal biochemical indicators analyzed for this study, only 5 have clinically deficient definitions established: retinol, α-tocopherol, ferritin, selenium, and transferrin saturation. Since none of the Peruvian women were clinically deficient in retinol and α-tocopherol, these values are omitted.

2Micronutrient deficiency definitions do not necessarily pertain to newborns; therefore, cord serum was not included.

3% = deficient women/total women × 100.

4(23).

5(24).

Horton et al.

Horton et al. Nutrition Journal 2013 12:80   doi:10.1186/1475-2891-12-80

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