ArticleScientific reports2026
Association between prenatal exposure to residential pyrethroid insecticides and congenital hypothyroidism using propensity score matching.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
This study aimed to assess the relationship between exposure to Type II pyrethroids and congenital hypothyroidism (CH), particularly in leishmaniasis-endemic regions where the immunity of residents is compromised.In this population-based case-control study, we used all mothers and newborns secondary data for the period 2017-2022 in eastern Isfahan province. Cases were newborns confirmed with diagnosis of CH. Data of insecticides spraying and fogging facilitated the identification of affected and unaffected regions. Propensity score (PS) matching was applied for matching controls to cases (5:1). The descriptive information reported along with the mapping generated using ArcGIS 10.8.2. Trimester-Specific analyses were conducted using STATA 17 with adjusting for possible confounders.After PS matching, out of 37,085 mother-newborn pairs registered in national Integrated Health System, 744 were included in the final analysis. After adjustment for birth and maternal characteristics, the association strengthened for second-trimester exposure (OR
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