TY - JOUR
T1 - Body mass index and the risk of giant cell arteritis-results from a prospective study
AU - Jakobsson, Karin
AU - Jacobsson, Lennart
AU - Warrington, Kenneth
AU - Matteson, Eric L.
AU - Liang, Kimberly
AU - Melander, Olle
AU - Turesson, Carl
N1 - Publisher Copyright:
© The Author 2014. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - Objective. The aim of this study was to examine potential risk factors for GCA in a nested case-control study based on two prospective health surveys. Methods. We used two population-based health surveys, the Malmö Preventive Medicine Program (MPMP) and the Malmö Diet Cancer Study (MDCS). Individuals who developed GCA after inclusion were identified by linking the MPMP and MDCS databases to several patient administrative registers. A structured review of the medical records of all identified cases was performed. Four controls for every confirmed case, matched for sex, year of birth and year of screening, were selected from the corresponding databases. Potential predictors of GCA were examined in conditional logistic regression models. Results. Eighty-three patients (70% women, 64% biopsy positive, mean age at diagnosis 71 years) had a confirmed diagnosis of GCA after inclusion in the MPMP or MDCS. A higher BMI was associated with a significantly reduced risk of subsequent development of GCA [odds ratio (OR) 0.91/kg/m2 (95% CI 0.84, 0.98)]. Smoking was not a risk factor for GCA overall [OR 1.36 (95% CI 0.77, 2.57)], although there was a trend towards an increased risk in female smokers [OR 2.14 (95% CI 0.97, 4.68)]. In multivariate analysis, adjusted for smoking and level of formal education, the inverse association between BMI and GCA remained significant (P = 0.027). Conclusion. In this study, GCA was predicted by a lower BMI at baseline. Potential explanations include an effect of reduced adipose tissue on hormonal pathways regulating inflammation.
AB - Objective. The aim of this study was to examine potential risk factors for GCA in a nested case-control study based on two prospective health surveys. Methods. We used two population-based health surveys, the Malmö Preventive Medicine Program (MPMP) and the Malmö Diet Cancer Study (MDCS). Individuals who developed GCA after inclusion were identified by linking the MPMP and MDCS databases to several patient administrative registers. A structured review of the medical records of all identified cases was performed. Four controls for every confirmed case, matched for sex, year of birth and year of screening, were selected from the corresponding databases. Potential predictors of GCA were examined in conditional logistic regression models. Results. Eighty-three patients (70% women, 64% biopsy positive, mean age at diagnosis 71 years) had a confirmed diagnosis of GCA after inclusion in the MPMP or MDCS. A higher BMI was associated with a significantly reduced risk of subsequent development of GCA [odds ratio (OR) 0.91/kg/m2 (95% CI 0.84, 0.98)]. Smoking was not a risk factor for GCA overall [OR 1.36 (95% CI 0.77, 2.57)], although there was a trend towards an increased risk in female smokers [OR 2.14 (95% CI 0.97, 4.68)]. In multivariate analysis, adjusted for smoking and level of formal education, the inverse association between BMI and GCA remained significant (P = 0.027). Conclusion. In this study, GCA was predicted by a lower BMI at baseline. Potential explanations include an effect of reduced adipose tissue on hormonal pathways regulating inflammation.
KW - Body mass index
KW - Giant cell arteritis
KW - Predictors
KW - Vasculitis
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U2 - 10.1093/rheumatology/keu331
DO - 10.1093/rheumatology/keu331
M3 - Article
C2 - 25193806
AN - SCOPUS:84941651453
VL - 54
SP - 433
EP - 440
JO - Rheumatology and Rehabilitation
JF - Rheumatology and Rehabilitation
SN - 1462-0324
IS - 3
ER -