Figure 5From: Trends in physician diagnosed gout and gout therapies in the US: results from the national ambulatory health care surveys 1993 to 2009Time trends in medications prescribed for gout in the US: data from the National Ambulatory Health Care Surveys 1993 to 2009. Trend lines and 95% confidence bands were fitted using fractional polynomial regression. Gout was defined as a physician diagnosis of gout or prescription of allopurinol/colchicine. NSAID, non-steroidal anti-inflammatory drugs.Back to article page