Hospital-level, 30-day risk-standardised readmission rate for patients discharged from the hospital with a principal discharge diagnosis of acute myocardial infarction.

30-day, all-cause readmissions for patients discharged from the hospital with a principal discharge diagnosis of Acute Myocardial Infarction. This measure looks for a dichotomous yes or no outcome of whether each admitted patient has an unplanned readmission within 30 days.

Admissions for patients: 1. Discharged from the hospital with a principal discharge diagnosis of AMI; 2. Enrolled in Medicare fee-for-service Part A and Part B for the 12 months prior to the date of admission and Part A during the index admission; 3. Aged 65 or over; 4. Discharged alive; 5. Not transferred to another acute care facility.

Index admissions without at least 30 days of post-discharge enrolment in Medicare fee-for-service; same-day discharges; Acute Myocardial Infarction admissions within 30 days of discharge from a prior Acute Myocardial Infarction index admission; discharged against medical advice; with a principal diagnosis/secondary diagnosis code of COVID-19 coded as present on admission on the index admission claim.

Hierarchical logistic regression is used to adjust for differences in hospital case mix (age and clinical status of the patient, accounted for by adjusting for comorbidities) and to account for the clustering of patients within a hospital. The measure calculates a risk-standardised ratio of the number of predicted readmissions to the number of expected readmissions. This ratio is multiplied by the national observed readmission rate to get the risk-standardised readmission rate (RSRR).

Medicare fee-for-service (FFS) claims data.

Hospital Readmission Reduction Program (CMS and Providers) CMS Care Compare - Hospitals and Provider Data Catalogue (Publicly reported).

Crespin DJ, Whaley C. The effect of hospital discharge price increases on publicly reported measures of quality. Health Serv Res. 2023 Feb;58(1):91-100. doi: 10.1111/1475-6773.14040. Epub 2022 Aug 9. PMID: 35872595; PMCID: PMC9836939. Goldberg EM, Morphis B, Youssef R, Gardner R. An analysis of diagnoses that drive readmission: What can we learn from the hospitals in Southern New England with the highest and lowest readmission performance? R I Med J (2013). 2017 Aug 1;100(8):23-28. PMID: 28759896; PMCID: PMC5666576. www.cms.gov/medicare/quality/value-based-programs/hospital-readmissions data.cms.gov/provider-data/topics/hospitals/measures-and-current-data-collection-periods

cmit.cms.gov/cmit/#/MeasureView?variantId=61&sectionNumber=3 www.cms.gov/medicare/quality/initiatives/hospital-quality-initiative/measure-methodology