<prompt> Translate the following text to EnglishHata hivyo, matokeo kutoka kwa kundi hili yamekuwa yasiyo ya mfuatano na matokeo ya ubora wa hewa si wawakilishi wa kijiografia wa sehemu kubwa ya Marekani.  <response>: Results from this cohort, however, have been inconsistent and the air quality results are not geographically representative of most of the US. 