Fig. (1) Overall Trend and Annual Percent Change (APC) of Cervical Cancer Diagnosis Among Delivery-Related Discharges in the United States by Region, HCUP-NIS, 1998-2009. APC = annual percent change, point estimate (95% confidence interval). Vertical axis: diagnosed Cervical Cancer per 100,000 discharges; Horizontal axis: year of study. *The APC for the joinpoint segment is statistically significantly different from zero (p<0.05).