Inflammatory skin diseases linked to chronic kidney disease: Study
Researchers from a recent study have found out that inflammatory skin diseases like atopic eczema, psoriasis and hidradenitis suppurativa are weakly associated with chronic kidney disease (CKD).
The study is published in the British Journal of Dermatology.
Emerging evidence suggests an association between common inflammatory skin diseases and chronic kidney disease (CKD).
Hence, Y Schonmann and colleagues from the Department of Non-communicable Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK carried out the present study to explore the association between CKD stages 3-5 (CKD3-5) and atopic eczema, psoriasis, rosacea and hidradenitis suppurativa.
The authors undertook two complementary analyses; a prevalent case-control study and a cohort study using routinely collected primary care data [UK Clinical Practice Research Datalink (CPRD)] and matched individuals with CKD3-5 in CPRD with up to five individuals without CKD for general practitioner practice, age and sex.
The prevalence of CKD3-5 among individuals with and without each inflammatory skin disease were compared. Individuals in CPRD with diabetes mellitus in a cohort analysis to compare the incidence of CKD3-5 among people with and without atopic eczema and psoriasis were included.
The following findings were highlighted-
a. The study included 56 602 cases with CKD3-5 and 268 305 controls.
b. Cases were more likely than controls to have a history of atopic eczema [odds ratio (OR) 1·14, 99% confidence interval (CI) 1·11-1·17], psoriasis (OR 1·13, 99% CI 1·08-1·19) or hidradenitis suppurativa (OR 1·49, 99% CI 1·19-1·85), but were slightly less likely to have been diagnosed with rosacea (OR 0·92, 99% CI 0·87-0·97), after adjusting for age, sex, practice (matching factors), index of multiple deprivation, diabetes, smoking, harmful alcohol use and obesity.
c. Results remained similar after adjusting for hypertension and cardiovascular disease.
d. In the cohort with diabetes (N = 335 827), there was no evidence that CKD3-5 incidence was associated with atopic eczema or psoriasis.
Therefore, the authors concluded that "atopic eczema, psoriasis and hidradenitis suppurativa are weakly associated with CKD3-5."
However, future research is needed to elucidate potential mechanisms and the clinical significance of our findings, they further added.
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