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. 2016 Feb 3;8(2):74.
doi: 10.3390/nu8020074.

Iodine Status of Women of Reproductive Age in Sierra Leone and Its Association with Household Coverage with Adequately Iodized Salt

Fabian Rohner  1 , James P Wirth  2 , Bradley A Woodruff  3 , Faraja Chiwile  4 , Hannah Yankson  5 , Fatmata Sesay  6 , Aminata S Koroma  7 , Nicolai Petry  8 , Solade Pyne-Bailey  9 , Elisa Dominguez  10 , Roland Kupka  11 , Mary H Hodges  12 , Mercedes de Onis  13
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Iodine Status of Women of Reproductive Age in Sierra Leone and Its Association with Household Coverage with Adequately Iodized Salt

Fabian Rohner et al. Nutrients. .

Abstract

Salt iodization programs are a public health success in tackling iodine deficiency. Yet, a large proportion of the world's population remains at risk for iodine deficiency. In a nationally representative cross-sectional survey in Sierra Leone, household salt samples and women's urine samples were quantitatively analyzed for iodine content. Salt was collected from 1123 households, and urine samples from 817 non-pregnant and 154 pregnant women. Household coverage with adequately iodized salt (≥15 mg/kg iodine) was 80.7%. The median urinary iodine concentration (UIC) of pregnant women was 175.8 µg/L and of non-pregnant women 190.8 µg/L. Women living in households with adequately iodized salt had higher median UIC (for pregnant women: 180.6 µg/L vs. 100.8 µg/L, respectively, p < 0.05; and for non-pregnant women: 211.3 µg/L vs. 97.8 µg/L, p < 0.001). Differences in UIC by residence, region, household wealth, and women's education were much smaller in women living in households with adequately iodized salt than in households without. Despite the high household coverage of iodized salt in Sierra Leone, it is important to reach the 20% of households not consuming adequately iodized salt. Salt iodization has the potential for increasing equity in iodine status even with the persistence of other risk factors for deficiency.

Keywords: Sierra Leone; household equity; iodine status; salt iodine levels; salt iodization.

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Figures

Figure 1
Figure 1
Geographic distribution of coverage of adequately iodized salt (≥15 mg/kg), Sierra Leone, 2013.
Figure 2
Figure 2
Geographic distribution of median urinary iodine concentrations among non-pregnant women aged 15–49 years, Sierra Leone, 2013.
See this image and copyright information in PMC

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