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Background: Despite current policies of salt iodination, iodine deficiency is still a global public health problem, especially in women. So far, conflicting evidence has been suggested for the prevalence of iodine deficiency in Brazil. Objective: To estimate the prevalence of iodine deficiency and associated factors in women of childbearing age in Brazil. Methods: A systematic review was conducted using databases (PubMed, LILACS, WHO, Scopus, and Capes’ dissertation and thesis), from inception to May 2020. Meta-analyses of proportions were performed using the variance inverse for the fixed model. Reporting and methodological quality were assessed using the Joanna Briggs Institute tool to prevalence studies. Results: Our review identified seven studies published between 2002 e 2017, including 1354 participants, especially pregnant women. All studies presented at least one quality limitation, mainly regarding the sampling method (i.e., convenience) and small sample size. The prevalence of iodine deficiency ranged among studies from 16% to 62%. In contrast, the meta-analysis identified a mean prevalence of 40% (95% confidence interval, CI 37%-43%) for pregnant women and 13% (95% CI 4%-24%) for non-pregnant women. Cumulative meta-analysis suggests a tendency of higher iodine deficiency prevalence from 2018 in pregnant women. Conclusions: Although this systematic review identified studies with poor methodological and reporting quality, a high prevalence of iodine deficiency was identified in pregnant women, reinforcing the importance of national nutritional policies for monitoring iodine status in this population. Future studies should consider random probabilistic sampling, appropriate sample size, and pre-defined subgroup analysis to adequately inform the prevalence of iodine deficiency and associated factors in women of childbearing age and support health policies. Resumen Antecedentes: A pesar de las políticas actuales de yodación de la sal, la deficiencia de yodo sigue siendo un problema de salud pública mundial, especialmente en las mujeres. Hasta ahora, se han sugerido pruebas contradictorias sobre la prevalencia de la deficiencia de yodo en Brasil. Objetivo: Estimar la prevalencia de deficiencia de yodo y factores asociados en mujeres en edad fértil, en Brasil. Métodos: Se realizó una revisión sistemática, buscando en PubMed, LILACS, OMS, Scopus y la base de datos de disertaciones y tesis de Capes desde el inicio hasta mayo de 2020. Se realizaron metanálisis de proporciones utilizando la variancia inversa para el modelo fijo. La calidad de información y metodológica se evaluó utilizando la herramienta del Institute Joanna Briggs para estudios de prevalencia. Resultados: Nuestra revisión identificó siete estudios publicados entre 2002 y 2017, incluyendo 1354 participantes, especialmente mujeres embarazadas. Todos los estudios presentaron al menos una limitación de calidad, principalmente con respecto al método de muestreo (es decir, la conveniencia) y el pequeño tamaño de la muestra. La prevalencia de la deficiencia de yodo varió entre los estudios del 16% y el 62%, mientras que el metanálisis identificó una prevalencia media del 40% (intervalo de confianza del 95%, IC 37%-43%) para las mujeres embarazadas y del 13% (IC del 95% 4%-24%) para mujeres no embarazadas. El metanálisis acumulativo sugiere una tendencia a una mayor prevalencia de deficiencia de yodo a partir de 2018 en mujeres embarazadas. Conclusiones: Si bien esta revisión sistemática identificó estudios con mala calidad metodológica y de reporte, se identificó una alta prevalencia de deficiencia de yodo en mujeres embarazadas, lo que refuerza la importancia de las políticas nutricionales nacionales para monitorear el estado de yodo en esta población. Los estudios futuros deben considerar el muestreo probabilístico aleatorio, el tamaño de muestra apropiado y el análisis de subgrupos predefinidos para informar adecuadamente la prevalencia de la deficiencia de yodo y los factores asociados en mujeres en edad fértil y para respaldar las políticas de salud.

Made available in DSpace on 2022-04-29T08:03:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Background: The use of herbal medicines is justified empirically using ethnopharmacological knowledge, which has limitations. Reports of adverse events (AE) may contribute for safety, quality, and effectiveness assessment. Objectives: This study aimed to develop an instrument to allow detection and evaluation of the causal likelihood of AE related to herbal medicines. Methods: A quantitative methodological development research intervention was performed with primary care health professionals. Two cases were distributed in an interval of one week in order to allow for completion of the proposal form. The within-rater reliability was calculated and classified into satisfactory, regular, and unsatisfactory, according to essential, necessary, and recommended items reported. Results: Fifty-seven professionals were enrolled. A high degree of the within-rater reliability was observed for the most essential, necessary, and recommended fields. The instrument contributed to assessment of definite causal association, once the duration of reactions including evolution, withdrawal, and reposition items showed high reliability. Most fields poor and weak filled were related to quality defects, such as popular name and appearance. Conclusions: Data suggest the instrument is adequate to report AE arising from herbal medicines. Owing to information regarding to organoleptic characteristics, the instrument is different from drug instruments. Therefore, it is intended to improve AE reports related to herbal medicines and contribute for appropriate use. Department of Drugs and Medicines School of Pharmaceutical Sciences Universidade Estadual Paulista “Júlio de Mesquita Filho-Araraquara Department of Natural Active Principles and Toxicology School of Pharmaceutical Sciences Universidade Estadual Paulista “Júlio de Mesquita Filho-Araraquara Department of Drugs and Medicines School of Pharmaceutical Sciences Universidade Estadual Paulista “Júlio de Mesquita Filho-Araraquara Department of Natural Active Principles and Toxicology School of Pharmaceutical Sciences Universidade Estadual Paulista “Júlio de Mesquita Filho-Araraquara FAPESP: 2013/12681-2 FAPESP: 99999.014301/2013-00