ABSTRACT:Background:Despite gout and hyperuricaemia being major co-morbid health issues worldwide, there is a large epidemiological gap regarding their impact in the Australian community.
Aims:To determine the prevalence and associations of self-reported medically diagnosed gout, and hyperuricaemia, in an Australian population-based cohort.
Methods:The North West Adelaide Health Study (NWAHS) is a longitudinal cohort study consisting of three stages of data collection. Each stage comprised a self-complete questionnaire, clinic assessment and Computer Assisted Telephone Interview (CATI). In Stage 3 (2008-2010) participants were asked if a doctor had ever diagnosed them with gout. Additional data included demographics, co-morbidities, laboratory data and SF-36. Participants were defined as having gout if they had self-reported medically diagnosed gout or were taking any gout specific medication (allopurinol, colchicine, probenecid). Hyperuricaemia was defined as a serum uric acid level >0.42mmol/L in men and >0.34mmol/L in women.
Results:The overall prevalence of gout was 5.2%. Males were significantly more likely to have gout than females (8.5% vs 2.1%, p<0.001). The overall prevalence of hyperuricaemia was 16.6%, with being male again identified as a significant risk factor (17.8% vs 15.4%, p<0.01). Both gout and hyperuricaemia were associated with male sex, body mass index, and renal disease, after 2 multivariable adjustment. There was no significant difference reported in quality of life scores in gout participants, compared to unaffected individuals.
Conclusion:In the South Australian population the prevalence of gout and hyperuricaemia is high. This study emphasises the need for optimal diagnosis and management of gout in Australia.