<prompt> Translate the following text to SwahiliDifferences in performance of screening instruments for problem drinking among blacks, whites and Hispanics in an emergency room population.  <response>: Tofauti katika utendaji wa vyombo vya uchunguzi kwa tatizo la kunywa kati ya weusi, wazungu na Wahispania katika idadi ya chumba cha dharura. 