black-white health disparities in the united states and chicago: a 15-year progress analysis. | in an effort to examine national and chicago, illinois, progress in meeting the healthy people 2010 goal of eliminating health disparities, we examined whether disparities between non-hispanic black and non-hispanic white persons widened, narrowed, or stayed the same between 1990 and 2005. | 2010 | 20019299 |