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Article Publish Status: FREE
Abstract Title:

Rheumatoid Arthritis in Agricultural Health Study Spouses: Associations with Pesticides and Other Farm Exposures.

Abstract Source:

Environ Health Perspect. 2016 Jun 10. Epub 2016 Jun 10. PMID: 27285288

Abstract Author(s):

Christine G Parks, Jane A Hoppin, Anneclaire J DeRoos, Karen H Costenbader, Michael C Alavanja, Dale P Sandler

Article Affiliation:

Christine G Parks

Abstract:

BACKGROUND: Farming has been associated with rheumatoid arthritis (RA), but the role of pesticides is not known.

OBJECTIVES: We examined associations between RA and pesticides or other agricultural exposures among female spouses of licensed pesticide applicators in the Agricultural Health Study.

METHODS: Women were enrolled 1993-1997 and followed through 2010. Cases (N=275 total, 132 incident), confirmed by a physician or by self-reported use of disease modifying anti-rheumatic drugs), were compared with non-cases (N=24,018). Odds ratios (OR) and 95% Confidence Intervals (CI) were estimated using logistic regression models adjusted for age, state and smoking pack-years.

RESULTS: Overall, women with RA were somewhat more likely to have reported lifetime use of any specific pesticide versus no pesticides (OR=1.4; 95%CI 1.0, 1.6). Of 15 pesticides examined, maneb/mancozeb (OR=3.3; 95%CI 1.5, 7.1) and glyphosate (OR=1.4; 95%CI 1.0, 2.1) were associated with incident RA compared with no pesticide use. An elevated, but non-statistically significant association with incident RA was seen for DDT (OR=1.9; 95%CI 0.97, 3.6). Incident RA was also associated with the application of chemical fertilizers (OR=1.7; 95%CI 1.1, 2.7) and cleaning with solvents (OR=1.6; 95%CI 1.1, 2.4), but inversely associated with lifetime livestock exposure as a child and adult (OR=0.48; 95%CI 0.24, 0.97) compared with no livestock exposure.

CONCLUSIONS: Our results suggest that specific agricultural pesticides, solvents and chemical fertilizers may increase risk of RA in women, while exposures involving animal contact may be protective.

Study Type : Human Study

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Sayer Ji
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