Methods of assessment of iodine status in humans: a systematic review

Ristić‐Medić, Danijela; Piskáčková, Zlata; Hooper, Lee; Ruprich, Jiří; Casgrain, Amélie; Ashton, Kate; Pavlović, Mirjana; Glibetić, Marija

doi:10.3945/ajcn.2009.27230h

Cited by 245 publications

(36 citation statements)

References 34 publications

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“…3. Regarding nutritional status, data gathered should include information on mean or median status using best practice biomarkers defined in the context of EURRECA: Hb, serum/plasma ferritin or serum/plasma transferrin receptor for Fe; erythrocyte (red cell) folate, serum/plasma folate or serum/plasma homocysteine for folate; serum/plasma total B 12 , serum/plasma methylmalonic acid or serum/plasma holotranscobalamin for vitamin B 12 ; serum/plasma Zn for Zn; and urinary iodine (24 h or spot), serum or dried whole blood spot thyroglobulin or serum thyroid-stimulating hormone for iodine (20)(21)(22)(23)(24)(25)(26)(27) .…”

Section: Search Methodologymentioning

confidence: 99%

“…Mean status marker level (or median where indicated) SD Serum folate (mean and SD/median; nmol/l) Croatia (53) 100 F 20-30 23 9 Czech Republic (lactation) (58) (20)(21)(22)(23)(24)(25)(26)(27)(30)(31)(32)(33) : serum folate 10 nmol/l for adults; urinary iodine 100 mg/l for adults, 150 mg/l for pregnant women; Hb 130 g/l for males, 120 g/l for females, 110 g/l for pregnant women; serum vitamin B 12 150 pmol/l for adults; serum Zn 10 mmol/l for children and females, 10?7 mmol/l for males.…”

Section: Countrymentioning

confidence: 99%

“…To assess adequacy of levels of status markers, we used guidance on cut-off values from EURRECA experts (30)(31)(32)(33) . These cut-off values were based on key references mostly published by the WHO in cooperation with other institutions (20)(21)(22)(23)(24)(25)(26)(27) .…”

Section: Data Analysesmentioning

confidence: 99%

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Micronutrient intake and status in Central and Eastern Europe compared with other European countries, results from the EURRECA network

Novaković

Cavelaars

Bekkering

et al. 2012

Public Health Nutr.

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Objective: To compare micronutrient intakes and status in Central and Eastern Europe (CEE) with those in other European countries and with reference values. Design: Review of the micronutrient intake/status data from open access and grey literature sources from CEE. Setting: Micronutrients studied were folate, iodine, Fe, vitamin B 12 and Zn (for intake and status) and Ca, Cu, Se, vitamin C and vitamin D (for intake). Intake data were based on validated dietary assessment methods; mean intakes were compared with average nutrient requirements set by the Nordic countries or the US Institute of Medicine. Nutritional status was assessed using the status biomarkers and cut-off levels recommended primarily by the WHO. Subjects: For all population groups in CEE, the mean intake and mean/median status levels were compared between countries and regions: CEE, Scandinavia, Western Europe and Mediterranean. Results: Mean micronutrient intakes of adults in the CEE region were in the same range as those from other European regions, with exception of Ca (lower in CEE). CEE children and adolescents had poorer iodine status, and intakes of Ca, folate and vitamin D were below the reference values. Conclusions: CEE countries are lacking comparable studies on micronutrient intake/ status across all age ranges, especially in children. Available evidence showed no differences in micronutrient intake/status in CEE populations in comparison with other European regions, except for Ca intake in adults and iodine and Fe status in children. The identified knowledge gaps urge further research on micronutrient intake/status of CEE populations to make a basis for evidence-based nutrition policy.

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Section: Search Methodologymentioning

confidence: 99%

Section: Countrymentioning

confidence: 99%

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Micronutrient intake and status in Central and Eastern Europe compared with other European countries, results from the EURRECA network

Novaković

Cavelaars

Bekkering

et al. 2012

Public Health Nutr.

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“…For the final analysis, we used the data where dietary intake was assessed at the individual level and reported as mean intake. Nutritional status was reflected by the level of status markers defined as best practice biomarkers within the context of EURRECA (15,16) . The search results were screened on the basis of title and abstract by two independent reviewers.…”

Section: Methodsmentioning

confidence: 99%

Review Article Socio-economic determinants of micronutrient intake and status in Europe: a systematic review

Novaković

Cavelaars

Geelen

et al. 2013

Public Health Nutr.

100

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Objective: To provide the evidence base for targeted nutrition policies to reduce the risk of micronutrient/diet-related diseases among disadvantaged populations in Europe, by focusing on: folate, vitamin B 12 , Fe, Zn and iodine for intake and status; and vitamin C, vitamin D, Ca, Se and Cu for intake. Design: MEDLINE and Embase databases were searched to collect original studies that: (i) were published from 1990 to 2011; (ii) involved .100 subjects; (iii) had assessed dietary intake at the individual level; and/or (iv) included best practice biomarkers reflecting micronutrient status. We estimated relative differences in mean micronutrient intake and/or status between the lowest and highest socio-economic groups to: (i) evaluate variation in intake and status between socio-economic groups; and (ii) report on data availability. Setting: Europe. Subjects: Children, adults and elderly. Results: Data from eighteen publications originating primarily from Western Europe showed that there is a positive association between indicators of socioeconomic status and micronutrient intake and/or status. The largest differences were observed for intake of vitamin C in eleven out of twelve studies (5-47 %) and for vitamin D in total of four studies (4-31 %). Conclusions: The positive association observed between micronutrient intake and socio-economic status should complement existing evidence on socio-economic inequalities in diet-related diseases among disadvantaged populations in Europe. These findings could provide clues for further research and have implications for public health policy aimed at improving the intake of micronutrients and dietrelated diseases.

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“…The first stage of EURRECA included the collection of valid and robust data on micronutrient intake and status measures (Fairweather-Tait and Harvey, 2008;Ashton et al, 2009;Harvey et al, 2009;Lowe et al, 2009;Ristic-Medic et al, 2009;Seamans and Cashman, 2009;Serra-Majem et al, 2009;Hoey et al, 2009a, b). High scores for the questions relating to these two aspects confirm their importance, and best practice guidelines on the use of intake and status data in setting recommendations are being developed.…”

Section: Active Stage Toolsmentioning

confidence: 99%

Developing micronutrient reference values: prioritization of tool development by the EURRECA Network of Excellence

Lambert¹,

Ashwell

2010

Eur J Clin Nutr

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Objectives: The EURRECA Network of Excellence is developing standardized methods that will guide the alignment of micronutrient reference values (RVs) across Europe. A consultation process to identify and prioritize the best practice, 'tools' or guidance for EURRECA was undertaken. Subjects/Methods: A questionnaire was sent to 90 individuals with experience of setting or using RVs. Respondents were asked to rank the usefulness of each type of possible guidance. Results: In all, 52% of individuals returned completed questionnaires. For the planning process, the most needed guidance was on the best way to assess the 'status quo' of RVs; what to cover, setting priorities, how to take into consideration the diverse needs of the users; and making the whole process transparent. The most needed guidance for the active stage of development was how to obtain valid and robust data on intakes and status to use as a base for RVs; how to account for food-related factors; how to incorporate results of systematic reviews; how to identify unbiased and independent reviews and make decisions if evidence is conflicting; methods to 'weight' the evidence; and formats or concepts to convert scientific requirements into RVs. Users of RVs required guidance on communication, codes of practice to raise professional and public awareness, making them easy to use in the intended way. Conclusions: The questionnaire responses provided views from a wide range of experts on the most needed 'tools' and standardized methodologies for the process of reviewing micronutrient RVs. This will help the EURRECA Network of Excellence to prioritize resources.

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Methods of assessment of iodine status in humans: a systematic review

Cited by 245 publications

References 34 publications

Micronutrient intake and status in Central and Eastern Europe compared with other European countries, results from the EURRECA network

Micronutrient intake and status in Central and Eastern Europe compared with other European countries, results from the EURRECA network

Review Article Socio-economic determinants of micronutrient intake and status in Europe: a systematic review

Developing micronutrient reference values: prioritization of tool development by the EURRECA Network of Excellence

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