Hospitals with high and low performance on Medicare quality measures had little difference in the rate of death for three common conditions at the hospitals, indicating that the performance measures may not accurately reflect patient outcomes.<br><br><a href='http://www.upenn.edu/researchatpenn/article.php?1145&amp;hlt&#039; target='_blank'>http://www.upenn.edu/researchatpenn/article.php?1145&amp;hlt&lt;/a&gt;&lt;br&gt;&lt;br>