A Systematic Literature Review of the Epidemiology, Health-Related Quality of Life Impact, and Economic Burden of Immunoglobulin A Nephropathy.

30,38,41 One US study found an increasing trend in IgAN incidence, from 0.1/100 000 person-years in 2000 to 1.6/100 000 person-years in 2011. 31 Three US-based studies reported IgAN rates among adult and pediatric patients with GN by race, finding higher rates in Asian Americans (2.75/100 000 person-years) than any other race (ranging from 0.1 in African Americans to 0.96 in Hispanic individuals). 31 There were no US publications that reported on the prevalence of IgAN.

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The tendency of IgAN to be diagnosed at later CKD stages in the United States suggests that kidney damage may be significant before treatment can begin, implying the need for increased awareness and urine screening for proteinuria.

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