The incidence of biopsy-proven IgA nephropathy is associated with multiple socioeconomic deprivation

McQuarrie, Emily P; Mackinnon, Bruce; McNeice, Valerie; Fox, Jonathan G; Geddes, Colin C
January 2014
Kidney International;Jan2014, Vol. 85 Issue 1, p198
Academic Journal
Chronic kidney disease is more common in areas of socioeconomic deprivation, but the relationship with the incidence and diagnosis of biopsy-proven renal disease is unknown. In order to study this, all consecutive adult patients undergoing renal biopsy in West and Central Scotland over an 11-year period were prospectively analyzed for demographics, indication, and histologic diagnosis. Using the Scottish Index of Multiple Deprivation, 1555 eligible patients were separated into quintiles of socioeconomic deprivation according to postcode. Patients in the most deprived quintile were significantly more likely to undergo biopsy compared with patients from less deprived areas (109.5 compared to 95.9 per million population/year). Biopsy indications were significantly more likely to be nephrotic syndrome, or significant proteinuria without renal impairment. Patients in the most deprived quintile were significantly more likely to have glomerulonephritis. There was a significant twofold increase in the diagnosis of IgA nephropathy in the patients residing in the most compared with the least deprived postcodes not explained by the demographics of the underlying population. Thus, patients from areas of socioeconomic deprivation in West and Central Scotland are significantly more likely to undergo native renal biopsy and have a higher prevalence of IgA nephropathy.


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