Mediterranean diet and incidence of rheumatoid arthritis in women

Yang Hu, Karen H. Costenbader, Xiang Gao, Frank B. Hu, Elizabeth W. Karlson, Bing Lu

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Objective We examined the association between a Mediterranean dietary pattern, as measured by the Alternate Mediterranean Diet Score (aMed), and risk of incident rheumatoid arthritis (RA) in US women. Methods We prospectively followed 83,245 participants from the Nurses' Health Study (NHS; 1980-2008) and 91,393 participants from NHS II (1991-2009) who were initially free of baseline connective tissue diseases. Dietary information was obtained via validated food frequency questionnaires at baseline and approximately every 4 years during followup. The aMed score was calculated according to the consumption status of 9 food components using cumulative average value. Time-varying Cox proportional hazards models were used to calculate hazard ratios (HRs) for RA, seropositive RA, and seronegative RA after adjustment for potential confounding factors. Results from 2 cohorts were pooled by an inverse variance-weighted, fixed-effects model. Results During 3,511,050 person-years of followup, 913 incident cases of RA were documented in the 2 cohorts. After adjustment for several lifestyle and dietary variables, in both cohorts greater adherence to Mediterranean dietary pattern was not significantly associated with altered risk of RA. The pooled HR for women in the highest quartile of the aMed score was 0.98 (95% confidence interval 0.80-1.20) compared with those in the bottom quartile. Similar nonsignificant results were observed for both seropositive and seronegative RA. We did not find significant associations between each individual food component (except for alcohol) of the aMed score and risk of incident RA. Conclusion We did not find a significant association between a Mediterranean dietary pattern and the risk of RA in women.

Original languageEnglish (US)
Pages (from-to)597-606
Number of pages10
JournalArthritis Care and Research
Volume67
Issue number5
DOIs
StatePublished - May 1 2015

Fingerprint

Mediterranean Diet
Rheumatoid Arthritis
Incidence
Food
Connective Tissue Diseases
Proportional Hazards Models
Life Style
Nurses
Alcohols
Confidence Intervals

All Science Journal Classification (ASJC) codes

  • Rheumatology

Cite this

Hu, Y., Costenbader, K. H., Gao, X., Hu, F. B., Karlson, E. W., & Lu, B. (2015). Mediterranean diet and incidence of rheumatoid arthritis in women. Arthritis Care and Research, 67(5), 597-606. https://doi.org/10.1002/acr.22481
Hu, Yang ; Costenbader, Karen H. ; Gao, Xiang ; Hu, Frank B. ; Karlson, Elizabeth W. ; Lu, Bing. / Mediterranean diet and incidence of rheumatoid arthritis in women. In: Arthritis Care and Research. 2015 ; Vol. 67, No. 5. pp. 597-606.
@article{23931334c96c48ef84d9db010cf0d8aa,
title = "Mediterranean diet and incidence of rheumatoid arthritis in women",
abstract = "Objective We examined the association between a Mediterranean dietary pattern, as measured by the Alternate Mediterranean Diet Score (aMed), and risk of incident rheumatoid arthritis (RA) in US women. Methods We prospectively followed 83,245 participants from the Nurses' Health Study (NHS; 1980-2008) and 91,393 participants from NHS II (1991-2009) who were initially free of baseline connective tissue diseases. Dietary information was obtained via validated food frequency questionnaires at baseline and approximately every 4 years during followup. The aMed score was calculated according to the consumption status of 9 food components using cumulative average value. Time-varying Cox proportional hazards models were used to calculate hazard ratios (HRs) for RA, seropositive RA, and seronegative RA after adjustment for potential confounding factors. Results from 2 cohorts were pooled by an inverse variance-weighted, fixed-effects model. Results During 3,511,050 person-years of followup, 913 incident cases of RA were documented in the 2 cohorts. After adjustment for several lifestyle and dietary variables, in both cohorts greater adherence to Mediterranean dietary pattern was not significantly associated with altered risk of RA. The pooled HR for women in the highest quartile of the aMed score was 0.98 (95{\%} confidence interval 0.80-1.20) compared with those in the bottom quartile. Similar nonsignificant results were observed for both seropositive and seronegative RA. We did not find significant associations between each individual food component (except for alcohol) of the aMed score and risk of incident RA. Conclusion We did not find a significant association between a Mediterranean dietary pattern and the risk of RA in women.",
author = "Yang Hu and Costenbader, {Karen H.} and Xiang Gao and Hu, {Frank B.} and Karlson, {Elizabeth W.} and Bing Lu",
year = "2015",
month = "5",
day = "1",
doi = "10.1002/acr.22481",
language = "English (US)",
volume = "67",
pages = "597--606",
journal = "Arthritis Care and Research",
issn = "2151-464X",
publisher = "John Wiley and Sons Inc.",
number = "5",

}

Hu, Y, Costenbader, KH, Gao, X, Hu, FB, Karlson, EW & Lu, B 2015, 'Mediterranean diet and incidence of rheumatoid arthritis in women', Arthritis Care and Research, vol. 67, no. 5, pp. 597-606. https://doi.org/10.1002/acr.22481

Mediterranean diet and incidence of rheumatoid arthritis in women. / Hu, Yang; Costenbader, Karen H.; Gao, Xiang; Hu, Frank B.; Karlson, Elizabeth W.; Lu, Bing.

In: Arthritis Care and Research, Vol. 67, No. 5, 01.05.2015, p. 597-606.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Mediterranean diet and incidence of rheumatoid arthritis in women

AU - Hu, Yang

AU - Costenbader, Karen H.

AU - Gao, Xiang

AU - Hu, Frank B.

AU - Karlson, Elizabeth W.

AU - Lu, Bing

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Objective We examined the association between a Mediterranean dietary pattern, as measured by the Alternate Mediterranean Diet Score (aMed), and risk of incident rheumatoid arthritis (RA) in US women. Methods We prospectively followed 83,245 participants from the Nurses' Health Study (NHS; 1980-2008) and 91,393 participants from NHS II (1991-2009) who were initially free of baseline connective tissue diseases. Dietary information was obtained via validated food frequency questionnaires at baseline and approximately every 4 years during followup. The aMed score was calculated according to the consumption status of 9 food components using cumulative average value. Time-varying Cox proportional hazards models were used to calculate hazard ratios (HRs) for RA, seropositive RA, and seronegative RA after adjustment for potential confounding factors. Results from 2 cohorts were pooled by an inverse variance-weighted, fixed-effects model. Results During 3,511,050 person-years of followup, 913 incident cases of RA were documented in the 2 cohorts. After adjustment for several lifestyle and dietary variables, in both cohorts greater adherence to Mediterranean dietary pattern was not significantly associated with altered risk of RA. The pooled HR for women in the highest quartile of the aMed score was 0.98 (95% confidence interval 0.80-1.20) compared with those in the bottom quartile. Similar nonsignificant results were observed for both seropositive and seronegative RA. We did not find significant associations between each individual food component (except for alcohol) of the aMed score and risk of incident RA. Conclusion We did not find a significant association between a Mediterranean dietary pattern and the risk of RA in women.

AB - Objective We examined the association between a Mediterranean dietary pattern, as measured by the Alternate Mediterranean Diet Score (aMed), and risk of incident rheumatoid arthritis (RA) in US women. Methods We prospectively followed 83,245 participants from the Nurses' Health Study (NHS; 1980-2008) and 91,393 participants from NHS II (1991-2009) who were initially free of baseline connective tissue diseases. Dietary information was obtained via validated food frequency questionnaires at baseline and approximately every 4 years during followup. The aMed score was calculated according to the consumption status of 9 food components using cumulative average value. Time-varying Cox proportional hazards models were used to calculate hazard ratios (HRs) for RA, seropositive RA, and seronegative RA after adjustment for potential confounding factors. Results from 2 cohorts were pooled by an inverse variance-weighted, fixed-effects model. Results During 3,511,050 person-years of followup, 913 incident cases of RA were documented in the 2 cohorts. After adjustment for several lifestyle and dietary variables, in both cohorts greater adherence to Mediterranean dietary pattern was not significantly associated with altered risk of RA. The pooled HR for women in the highest quartile of the aMed score was 0.98 (95% confidence interval 0.80-1.20) compared with those in the bottom quartile. Similar nonsignificant results were observed for both seropositive and seronegative RA. We did not find significant associations between each individual food component (except for alcohol) of the aMed score and risk of incident RA. Conclusion We did not find a significant association between a Mediterranean dietary pattern and the risk of RA in women.

UR - http://www.scopus.com/inward/record.url?scp=84928525360&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84928525360&partnerID=8YFLogxK

U2 - 10.1002/acr.22481

DO - 10.1002/acr.22481

M3 - Article

C2 - 25251857

AN - SCOPUS:84928525360

VL - 67

SP - 597

EP - 606

JO - Arthritis Care and Research

JF - Arthritis Care and Research

SN - 2151-464X

IS - 5

ER -