The percentage of persons tested for HIV, NHIS and BRFSS, United States, 2003–2013.

Note. N = Unweighted sample size; 95% CI = 95% Confidence Interval; BRFSS = Behavioral Risk Factor Surveillance System; HIV = human immunodeficiency virus; NHIS = National Health Interview Survey
a Linear regression modeling was used to assess for statistically significant changes in the percentage of persons aged 18–64 years ever tested for HIV in NHIS during 2003–2013. From 2003 to 2010, there was a statistically significant 4.8% increase in the percentage ever tested for HIV (p < 0.001). From 2010 to 2011, there was a statistically significant 4.4% decrease in the percentage ever tested for HIV (p < 0.001). From 2011 to 2012, the percentage ever tested for HIV did not change significantly (p = 0.101). From 2012 to 2013, there was a statistically significant 2.5% increase in the percentage ever tested for HIV (p < 0.001).
b Linear regression modeling was used to assess for statistically significant changes in the percentage of persons aged 18–64 years ever tested for HIV in BRFSS during 2003–2013. From 2003 to 2010, there was a statistically significant 5.7% decrease in the percentage ever tested for HIV (p < 0.001). From 2010 to 2011, there was a statistically significant 2.7% increase in the percentage ever tested for HIV (p < 0.001). From 2011 to 2013, there was a statistically significant 0.6% increase in the percentage ever tested for HIV (p = 0.016).
The percentage of persons tested for HIV, NHIS and BRFSS, United States, 2003–2013.