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Association between pyrethroid exposure and risk of depressive symptoms in the general US adults

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Abstract

This study aimed to investigate the association between pyrethroid exposure and the risk of depressive symptoms in adults in the USA. Data of participants aged ≥20 years (n = 6455) from the National Health and Nutrition Examination Survey (NHANES, 2007–2014) were included. 3-Phenoxybenzoic acid (3-PBA), an adequately detected pyrethroid metabolite, was used as a biomarker to assess pyrethroid exposure. Depressive symptoms were defined as the Patient’s Health Questionnaire (PHQ-9) total score ≥10 or use of antidepressant. Multivariable logistic regression analyses were performed to examine the association between urinary 3-PBA levels and the risk of depressive symptoms. In this study, 1150 participants (weighted frequency, 18.45%) developed depressive symptoms. Participants in the highest tertile have a higher risk of depressive symptoms than those in the lowest tertile of urinary 3-PBA and weighted OR of 1.28 (95% CI, 1.00–1.63, P=0.019). There was a nonlinear association between urinary 3-PBA and depressive symptoms (P for nonlinearity = 0.034). Mediation analysis showed the mediating effect of trouble sleeping on the association of urinary 3-PBA with depressive symptoms was 28.8% (P = 0.006). Our findings indicate that pyrethroid exposure is associated with the increased risk of depressive symptoms, and trouble sleeping may mediated this association. Further studies should be conducted to validate our findings and elucidate their underlying mechanisms.

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Data availability

These datasets were available from NHANES 2007-2014 (https://www.cdc.gov/nchs/nhanes/index.htm).

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Authors and Affiliations

Authors

Contributions

Hui-ru Li: conceptualization, methodology, software, writing — original draft, writing — review and editing. Xi-hang Fu: methodology, software, writing — review and editing. Ling-ling Song: writing — review and editing. Man-qiu Cen: writing — review and editing. Jing Wu: conceptualization, supervision, methodology, writing — review and Editing.

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Correspondence to Jing Wu.

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This study was approved by the Ethical Review at the NCHS, and written informed consents were obtained from all participants.

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Not applicable.

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The authors declared no competing interests.

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Responsible Editor: Lotfi Aleya

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Li, Hr., Fu, Xh., Song, Ll. et al. Association between pyrethroid exposure and risk of depressive symptoms in the general US adults. Environ Sci Pollut Res 30, 685–698 (2023). https://doi.org/10.1007/s11356-022-22203-9

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  • DOI: https://doi.org/10.1007/s11356-022-22203-9

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