Intersectional inequalities and individual heterogeneity in chronic rheumatic diseases: An intersectional multilevel analysis. Kiadaliri, A. & Englund, M. Arthritis Care & Research, 73(2):296–304, 2021. Number: 2
Intersectional inequalities and individual heterogeneity in chronic rheumatic diseases: An intersectional multilevel analysis [link]Paper  doi  abstract   bibtex   
Objective To examine how intersections of multiple sociodemographic variables explain the individual heterogeneity in risk of being diagnosed with any of following chronic rheumatic diseases (CRDs): osteoarthritis (OA), gout, rheumatoid arthritis (RA), or spondyloarthritis (SpA). Methods We identified people aged 40-65 years residing in Skåne, Sweden, by 31st December 2013 and having done so from 1st January 2000 (N=342,542). We used Skåne healthcare register to identify those with a diagnosis of the CRD of interest between 1st January 2014 and 31st December 2015 with no previous such diagnosis during 2000-2013. We created 144 intersectional social strata (ISS) using categories of age, gender, education, income, civil status, and immigration. With individuals nested within ISS, we applied multilevel logistic regression models to estimate: 1) variance partition coefficient (VPC) as a measure of discriminatory accuracy of the ISS and 2) predicted absolute risks and 95% credible intervals for each stratum. Results In overall, 3.5%, 0.5%, 0.2%, and 0.2% of the study population were diagnosed with OA, gout, RA, and SpA, respectively. The VPC ranged from 16.2% for gout to 0.5% for SpA. Gender explained the largest proportion of between-strata variation in risk of RA, gout, and SpA while age was the most important factor for OA. The most between-strata differences in risk of these CRDs were due to the additive main effects. Conclusion Despite meaningful between-strata inequalities in the risk of being diagnosed with CRDs (except SpA), there were substantial within-strata heterogeneities that remains unexplained. There were limited evidence of intersectional interaction effects.
@article{kiadaliri_intersectional_2021,
	title = {Intersectional inequalities and individual heterogeneity in chronic rheumatic diseases: {An} intersectional multilevel analysis},
	volume = {73},
	copyright = {© 2019, American College of Rheumatology},
	issn = {2151-4658},
	shorttitle = {Intersectional inequalities and individual heterogeneity in chronic rheumatic diseases},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/acr.24109},
	doi = {10.1002/acr.24109},
	abstract = {Objective To examine how intersections of multiple sociodemographic variables explain the individual heterogeneity in risk of being diagnosed with any of following chronic rheumatic diseases (CRDs): osteoarthritis (OA), gout, rheumatoid arthritis (RA), or spondyloarthritis (SpA). Methods We identified people aged 40-65 years residing in Skåne, Sweden, by 31st December 2013 and having done so from 1st January 2000 (N=342,542). We used Skåne healthcare register to identify those with a diagnosis of the CRD of interest between 1st January 2014 and 31st December 2015 with no previous such diagnosis during 2000-2013. We created 144 intersectional social strata (ISS) using categories of age, gender, education, income, civil status, and immigration. With individuals nested within ISS, we applied multilevel logistic regression models to estimate: 1) variance partition coefficient (VPC) as a measure of discriminatory accuracy of the ISS and 2) predicted absolute risks and 95\% credible intervals for each stratum. Results In overall, 3.5\%, 0.5\%, 0.2\%, and 0.2\% of the study population were diagnosed with OA, gout, RA, and SpA, respectively. The VPC ranged from 16.2\% for gout to 0.5\% for SpA. Gender explained the largest proportion of between-strata variation in risk of RA, gout, and SpA while age was the most important factor for OA. The most between-strata differences in risk of these CRDs were due to the additive main effects. Conclusion Despite meaningful between-strata inequalities in the risk of being diagnosed with CRDs (except SpA), there were substantial within-strata heterogeneities that remains unexplained. There were limited evidence of intersectional interaction effects.},
	language = {en},
	number = {2},
	urldate = {2019-11-18},
	journal = {Arthritis Care \& Research},
	author = {Kiadaliri, Ali and Englund, Martin},
	year = {2021},
	note = {Number: 2},
	keywords = {Replace full text},
	pages = {296--304},
}

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