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MONDAY, Sept. 14, 2020 (HealthDay News) — Adherence to a Mediterranean diet (MedD) is associated with the risk for rheumatoid arthritis (RA) among ever-smoking women, but not among women in general, according to a study published online Sept. 10 in Arthritis & Rheumatology<\/i>.<\/p>\n
Yann Nguyen, M.D., from the Universit\u00e9 Paris-Saclay, and colleagues examined the association between adherence to the MedD and risk for RA in a French cohort. A nine-unit dietary score assessing consumption of vegetables, legumes, cereal products, fish, meat, dairy products, olive oil, and alcohol was used to assess MedD adherence.<\/p>\n
The researchers identified 480 incident RA cases among 62,629 women. The MedD score was not associated with RA risk in the whole population (hazard ratio, 0.86; 95 percent confidence interval, 0.67 to 1.09 for high versus low score; Ptrend<\/sub> = 0.009); among ever-smokers, the MedD score was associated with reduced RA risk (hazard ratio for a one-point increase, 0.91; 95 percent confidence interval, 0.84 to 0.99; P = 0.03). The absolute risks for RA were 38.3 and 51.5 per 100,000 person-years in smokers with high and low MedD scores, respectively, compared with 35.8 per 100,000 person-years in never-smokers with high MedD scores.<\/p>\n “We found an inverse association between a high adherence to MedD and the risk of RA only among ever-smoking women, but not among nonsmoking women,” the authors write. “These could be explained by the differences between smokers and nonsmokers in RA pathophysiological mechanisms.”<\/p>\n Abstract\/Full Text (subscription or payment may be required)<\/a><\/p>\n <\/i><\/p>\n