Environmental research · 2025
Associations between agricultural use of pyrethroid insecticides and asthma: AGRICAN cohort results.
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Baldi Isabelle, de Graaf Lucie, Bureau Mathilde, Tual Séverine, Douwes Jeroen, Lebailly Pierre
Аннотация
RATIONALE: Following the withdrawal of organochlorines and organophosphates, pyrethroids have become the most used insecticides in both agricultural and domestic settings.
OBJECTIVES: We analyzed data from the French AGRICAN agricultural cohort to assess associations of occupational pyrethroid exposures and allergic/non-allergic asthma.
METHODS: At enrollment, asthma diagnosed by a doctor was reported by 11 815 participants (7028 classified as non-allergic and 4458 as allergic based on the presence of eczema and/or hay fever). Individual exposures to 17 pyrethroids were defined in 124 992 participants, based on a combination of the history of pesticide treatment of 11 crops (grassland, vineyard, wheat/barley, corn, field peas, potatoes, tobacco, beets, sunflower, rape, fruits) and a crop-exposure matrix.
MEASUREMENTS AND MAIN RESULTS: In men, no association was observed for any of the pyrethroids regardless of asthma phenotype. In contrast, in ever-exposed women, asthma risk was increased with use of any pyrethroid, both for allergic (+80 %) and non-allergic asthma (+40 %). Highest increases were observed for allergic asthma with fenpropathrin (OR = 2.00; 95 %CI:1.38-2.90), tralomethrin (OR = 1.81; 95 %CI:1.28-2.56), fenvalerate (OR = 1.81; 95 %CI:1.38-2.38), permethrin (OR = 1.78; 95 %CI:1.26-2.50) and deltamethrin (OR = 1.76; 95 %CI:1.35-2.29). Stratified analyses on women who reported living on a farm in early life showed stronger associations for non-allergic asthma. For women who reported early life living on vineyards associations with pyrethroids were stronger for both allergic and non-allergic asthma. Associations for women who lived on cattle farms were reduced for some pyrethroids.
CONCLUSION: Occupational pyrethroid exposure was positively associated with both allergic and non-allergic asthma in women but not in men.
OBJECTIVES: We analyzed data from the French AGRICAN agricultural cohort to assess associations of occupational pyrethroid exposures and allergic/non-allergic asthma.
METHODS: At enrollment, asthma diagnosed by a doctor was reported by 11 815 participants (7028 classified as non-allergic and 4458 as allergic based on the presence of eczema and/or hay fever). Individual exposures to 17 pyrethroids were defined in 124 992 participants, based on a combination of the history of pesticide treatment of 11 crops (grassland, vineyard, wheat/barley, corn, field peas, potatoes, tobacco, beets, sunflower, rape, fruits) and a crop-exposure matrix.
MEASUREMENTS AND MAIN RESULTS: In men, no association was observed for any of the pyrethroids regardless of asthma phenotype. In contrast, in ever-exposed women, asthma risk was increased with use of any pyrethroid, both for allergic (+80 %) and non-allergic asthma (+40 %). Highest increases were observed for allergic asthma with fenpropathrin (OR = 2.00; 95 %CI:1.38-2.90), tralomethrin (OR = 1.81; 95 %CI:1.28-2.56), fenvalerate (OR = 1.81; 95 %CI:1.38-2.38), permethrin (OR = 1.78; 95 %CI:1.26-2.50) and deltamethrin (OR = 1.76; 95 %CI:1.35-2.29). Stratified analyses on women who reported living on a farm in early life showed stronger associations for non-allergic asthma. For women who reported early life living on vineyards associations with pyrethroids were stronger for both allergic and non-allergic asthma. Associations for women who lived on cattle farms were reduced for some pyrethroids.
CONCLUSION: Occupational pyrethroid exposure was positively associated with both allergic and non-allergic asthma in women but not in men.