Association of statin prescription and AAA growth. Shown are adjusted odds ratios and 95% confidence intervals (CI) for different centers. AAA growth was defined as < or >= median. The New South Wales (NSW, n=30), Victoria (VIC, n=21) and New Zealand (NZ, n=34) cohorts were grouped since the cohorts were small. Western Australia (WA, n=458) and Queensland (QLD, n=109) cohorts were larger.