Prevalence of regular non-steroidal anti-inflammatory drug (NSAID) use by age and race/ethnicity. Prevalence of regular non-steroidal anti-inflammatory drug (NSAID) use by age and race/ethnicity. (A-C): Prevalence of NSAID use by race and age groups in National Health And Nutrition Examination Survey (NHANES) 1988-1994, (D-F): Prevalence of NSAID use by race and age groups in NHANES 1999-2004. Columns indicate weighted prevalence (%). Bars = SE of per cent. NH, Non-Hispanic. Jennifer S Davis et al. Open Heart 2017;4:e000550 ©2017 by British Cardiovascular Society