RT Journal A1 Dardick KR, Stein JA T1 HOspital readmissions and measures of quality JF JAMA JO JAMA YR 2012 FD January 25 VO 307 IS 4 SP 361 OP 362 DO 10.1001/jama.2012.11 UL http://dx.doi.org/10.1001/jama.2012.11 AB Kangovi and Grande stated, “CMS [Centers for Medicare & Medicaid Services] should monitor . . . observation service use . . . ”, yet their Figure ignores this and they do not discuss how this would affect their conclusions. No discussion of readmission rates can be considered valid without taking into account those hospital stays that are counted as observation and which may lead to an underestimation of readmission rates by as much as 32%.