Diet and Risk of Rheumatoid Arthritis in Women
Author Information
Author(s): Benito-Garcia Elizabeth, Feskanich Diane, Hu Frank B, Mandl Lisa A, Karlson Elizabeth W
Primary Institution: Brigham & Women's Hospital
Hypothesis
Is there a relationship between protein, iron, and meat consumption and the risk of developing rheumatoid arthritis?
Conclusion
The study found no significant association between dietary protein, iron, or meat consumption and the risk of rheumatoid arthritis in women.
Supporting Evidence
- The study followed participants from 1980 to 2002, confirming 546 cases of RA.
- Dietary intake was assessed using a semi-quantitative food frequency questionnaire.
- Multivariate models adjusted for age, body mass index, smoking, and breastfeeding history.
Takeaway
Eating more protein or meat doesn't seem to make women more likely to get rheumatoid arthritis, according to this study.
Methodology
The study used a prospective cohort design, following 82,063 women over 22 years and assessing their dietary intake multiple times.
Potential Biases
Potential for misclassification of RA cases and unmeasured confounding factors.
Limitations
The study relied on self-reported dietary data and medical record reviews, which may introduce misclassification.
Participant Demographics
The study included 82,063 women, primarily white, aged 30-55 years.
Statistical Information
Confidence Interval
95% CI 0.89–1.55
Digital Object Identifier (DOI)
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