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Northern Tasmania stone epidemiology (2002-2012)

Saturday, 29 June, 2013 - 11:00
Board 1

Poster Presenter: A. Gangulya.gangas.87@gmail.com

Northern Tasmania Stone Epidemiology ( 2002 – 2012 )


Urolithiasis risk factors are the same as the specific health challenges facing Northern Tasmania, with an increasingly elderly, obese, socio-economically disadvantaged population when compared to the rest of Australia.


Our aim was to see if there has been a shift in the type of stones correlating to the changing demographics and increase in obesity in our current society.


§Public & Private urolithiasis data collected
§2303 stones from 2093 patients
§Retrospectively analysed
§Demographic data accessed from Public Health Information Development Unit, University of Adelaide
§2131 of 2303 successfully analysed
§Mean age of 56.2 (2-98)
§Sex ratio 2.86:1 (M:F)
§Calcium Oxalate predominant type at 42.3% with Male’s overrepresented (p=0.0037)
§Mixed stones with Uric acid represented 37.7%
§Uric acid stones accounted for 9.7% with age > 64 (p<0.001) and being Male (p=0.0003) statistically significant independent factors
§Peak incidence in Female’s 50-64 cohort 77/100000
§Incidence increases with age in Male’s, peak 318/100000
§Total incidence of stones is 114/100000

Overall incidence of stones in Northern Tasmania was congruent with other western countries. Pure Uric acid stone rates were not higher, however 47.4% of all stones collected and analysed contained uric acid, thus benefit from widespread dissolution therapy is possible.