Geographical influences on the iodine status in pregnant women, neonates, and school-age children in China

ABSTRACT Background Population iodine deficiency is indicated by >3% of the population with newborn thyroid-stimulating hormone (TSH) concentration >5 mIU/L, median urinary iodine concentration (MUIC) <100 µg/L, or >5% prevalence of goiter in school-age children. However, the agreement between these population markers has not been systematically investigated. Objective To assess the agreement between TSH, MUIC, and goiter as markers of population iodine status. Methods We performed a systematic search for studies published on PubMed, Scopus, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Embase, and PsycINFO up to 29 October, 2018. Studies assessing iodine status in the population using the TSH marker and either MUIC or goiter prevalence in school-age children were included. The agreement between markers in classifying iodine status of the population was assessed. The sensitivity and specificity of the TSH marker was determined against MUIC and goiter prevalence as the reference markers. Results Of 17,435 records identified by the search strategy, 57 eligible studies were included in the review. The agreement between markers in classifying the iodine status of populations into the same category was 65% for TSH and MUIC, and 83% for TSH and goiter prevalence. The TSH marker had a sensitivity of 0.75 and specificity of 0.53 when compared with MUIC, and 0.86 and 0.50 when compared with goiter prevalence. Conclusions The TSH marker has a better agreement with goiter prevalence than MUIC when classifying the iodine status of populations. Re-evaluation of the current criteria for classifying the iodine status of populations using the TSH marker is warranted. This systematic review was registered at PROSPERO (http://www.crd.york.ac.uk/prospero/) as CRD42018091247.

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The current salt iodization strategy in Kyrgyzstan ensures sufficient iodine nutrition among school-age children but not pregnant women

Public Health Nutrition ◽

10.1017/s136898000999200x ◽

2009 ◽

Vol 13 (05) ◽

pp. 623 ◽

Cited By ~ 13

Author(s):

Roza B Sultanalieva ◽

Svetlana Mamutova ◽

Frits van der Haar

Keyword(s):

Pregnant Women ◽

School Age Children ◽

School Age ◽

Iodine Nutrition ◽

Salt Iodization

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Serum Copper Status in School-Age Children and Pregnant Women in China Nutrition and Health Survey 2010–2012

Biological Trace Element Research ◽

10.1007/s12011-016-0639-x ◽

2016 ◽

Vol 173 (2) ◽

pp. 268-274 ◽

Cited By ~ 3

Author(s):

Xiaobing Liu ◽

Jianhua Piao ◽

Yu Zhang ◽

Min Li ◽

Weidong Li ◽

...

Keyword(s):

Pregnant Women ◽

Health Survey ◽

Serum Copper ◽

School Age Children ◽

School Age ◽

Nutrition And Health ◽

Copper Status

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The consequences of declining population access to insecticide-treated nets (ITNs) on net use patterns and physical degradation of nets after 22 months of ownership

Malaria Journal ◽

10.1186/s12936-021-03686-2 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Zawadi M. Mboma ◽

Charles Festo ◽

Lena M. Lorenz ◽

Dennis J. Massue ◽

William N. Kisinza ◽

...

Keyword(s):

Pregnant Women ◽

Age Groups ◽

Household Survey ◽

Universal Coverage ◽

School Age Children ◽

School Age ◽

Insecticide Treated Nets ◽

Cross Sectional ◽

Use Patterns ◽

Physical Degradation

Abstract Background As insecticide-treated nets (ITNs) wear out and are disposed, some household members are prioritized to use remaining ITNs. This study assessed how nets are allocated within households to individuals of different age categories as ITNs are lost or damaged and as new ITNs are obtained. The study also explored how ITN allocation affects ITN durability. Methods A cross-sectional household survey and ITN durability study was conducted among 2,875 households across Tanzania to determine the proportion of nets that remain protective (serviceable) 22 months after net distribution aiming for universal coverage. Allocation of study nets within houses, and re-allocation of ITNs when new universal replacement campaign (URC) nets arrived in study households in Musoma District, was also assessed. Results Some 57.0% (95% CI 53.9–60.1%) of households had sufficient ITNs for every household member, while 84.4% (95% CI 82.4–86.4%) of the population had access to an ITN within their household (assuming 1 net covers every 2 members). In households with sufficient nets, 77.5% of members slept under ITNs. In households without sufficient nets, pregnant women (54.6%), children < 5 years (45.8%) and adults (42.1%) were prioritized, with fewer school-age children 5–14 years (35.9%), youths 15–24 years (28.1%) and seniors > 65 years (32.6%) sleeping under ITNs. Crowding ($$\ge$$ ≥ 3 people sleeping under nets) was twice as common among people residing in houses without sufficient nets for all age groups, apart from children < 5. Nets were less likely to be serviceable if: $$\ge$$ ≥ 3 people slept under them (OR 0.50 (95% CI 0.40–0.63)), or if nets were used by school-age children (OR 0.72 (95% CI 0.56–0.93)), or if the net product was Olyset®. One month after the URC, only 23.6% (95% CI 16.7–30.6%) of the population had access to a URC ITN in Musoma district. Householders in Musoma district continued the use of old ITNs even with the arrival of new URC nets. Conclusion Users determined the useful life of ITNs and prioritized pregnant women and children < 5 to serviceable ITNs. When household net access declines, users adjust by crowding under remaining nets, which further reduces ITN lifespan. School-age children that commonly harbour gametocytes that mediate malaria transmission are compelled to sleep under unserviceable nets, crowd under nets or remain uncovered. However, they were accommodated by the arrival of new nets. More frequent ITN delivery through the school net programme in combination with mass distribution campaigns is essential to maximize ITN effectiveness.

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Related Factors with School Age Children’s Iodine Status in Indonesia

Jurnal Berkala Epidemiologi ◽

10.20473/jbe.v6i22018.147-156 ◽

2018 ◽

Vol 6 (2) ◽

pp. 147

Author(s):

Nurul Lathifah ◽

Sri Sumarmi

Keyword(s):

Iodine Deficiency ◽

Social Economic ◽

Secondary Data ◽

School Age Children ◽

School Age ◽

Chi Square ◽

Related Factors ◽

Iodine Status ◽

Iodine Excretion ◽

Spearman Correlation Test

Background: The prevalence of iodine deficiency as the cause of Iodine Deficiency Disorders (IDD) in children in Indonesia increased from 12,9% in 2007 become 14,9% in 2013. The assessment of IDD is by iodine status via measuring Urine Iodine Excretion (UIE) and level of iodine salt. Purpose: The aim of this study was to analyze the correlation between children’s characteristics, social economic characteristics of parents, and level of iodine in salt with iodine status in school age children in Indonesia. Methods: The research design of this study was secondary data analysis. This study used data of Basic Health Research (Riskesdas) 2013. Data were analyzed by chi square, eta, and spearman correlation test. Results: The research showed that factor that there was a significant correlation with iodine status in school age children in Indonesia are children’s gender (p = 0,01), father’s education (p = 0,01; r = 0,09), mother’s education (p = 0,01; r = 0,11), father’s occupation (p = 0,01; r = 0,12), mother’s occupation (p = 0,01; r = 0,09), and level of iodine in salt (p = 0,01). Children’s age was no significant correlation with iodine status in school age children (p = 0,81). Conclusion: There was a correlation between children’s gender, social economic characteristics of parents, and level of iodine in salt with iodine status in school age children in Indonesia.

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