Frequency distribution of quality measures evaluated.

AMI = acute myocardial infarction; HF = heart failure; PN = pneumonia; SCIP = surgical care improvement project; ACEI = angiotensin-converting enzyme inhibitors; ARB = angiotensin receptor blockers; LSVD = left systolic ventricular dysfunction; PCI = percutaneous cardiac intervention; ICU = intensive care unit; ED = emergency department; CAP = community-acquired pneumonia. °In brackets is reported the overall number of patients for each set of measures. §Not documented in 122 (54.5%) medical records. §§Not documented in 367 (93.9%) medical records. §§§Not documented in 72 (84.7%) medical records. aAMI inpatient mortality not included for the calculation of the composite measure. bValues are expressed as mean ± SD.