Within Measurement Period Trends

2018 Measure Reporting Year

April 2014 - June 2017

Evaluating trends over time is necessary to identify patterns, changes, and potential unintended consequences in measure results. Users can examine national results for individual years within the current public reporting measurement period. More information on the measurement period can be found in the Notes section below. The visualization can be organized by condition/procedure or by type of measure outcome. Please note that while the graphs present exact data, the sparklines in the default views represent a general shape of changes over time.

To begin exploring the data, please do the following:

  1. Select up to 18 measures (all 18 are selected by default)

  2. Create up to 4 hospital profiles (in addition to the default profile of all hospitals).

  3. Click on the sparklines in the table below to explore percent change from the first year of the three-year measurement period.

{{vizh.year}} Measure Reporting Year

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Other Years

2019 2018

Table View

How This Is Calculated

To calculate three-year trends, we examined the national measure results for each year of the three-year public reporting measurement periods. The dates for each year of data collection in the public reporing measurement period are listed in the notes section below. We allow users to view the results by hospital characteristic profiles with 5 or more hospitals.

  1. For each year of the three-year measurement period, all hospitals are ranked in order of performance and the median is determined.

  2. The graphs use units of percent change, with the first year of the performance period fixed at zero and subsequent years located relative to the first. The following formula is used to calculate percent change:

The image shows calculation of percent change from the first year; the difference between the median measure results of the second and first years divided by the first year, multiplied by 100.

The image shows calculation of percent change from the first year; the difference between the median measure results of the third and first years divided by the first year, multiplied by 100.

  1. For each year of the three-year measurement period, the 25th and 75th percentiles determine the  interquartile ranges for the results.

Notes

Data Sources

  • Medicare Part A and B administrative claims and enrollment databases (2014-2017)

  • Inpatient Prospective Payment System (IPPS) Improving Medicare Post-Acute Care Transformation (IMPACT) Act File 2017

Table 1. Included Measures

Outcome 

Condition/Procedure

Measurement Period

Mortality

Acute Myocardial Infarction, Coronary Artery Bypass Graft Surgery, Chronic Obstructive Pulmonary Disease, Heart Failure, Pneumonia, Stroke

Year 1: 7/1/2014 – 6/30/2015

Year 2: 7/1/2015 – 6/30/2016

Year 3: 7/1/2016 – 6/30/2017

 

Complication

Total hip arthroplasty and/or total knee arthroplasty

4/2014 - 3/2017

Readmission

Acute Myocardial Infarction, Coronary Artery Bypass Graft Surgery, Chronic Obstructive Pulmonary Disease, Heart Failure, Pneumonia, Stroke, Total hip arthroplasty and/or total knee arthroplasty

Year 1: 7/1/2014 – 6/30/2015

Year 2: 7/1/2015 – 6/30/2016

Year 3: 7/1/2016 – 6/30/2017

Payment

Acute Myocardial Infarction, Heart Failure, Pneumonia

Year 1: 7/1/2014 – 6/30/2015

Year 2: 7/1/2015 – 6/30/2016

Year 3: 7/1/2016 – 6/30/2017

Total hip arthroplasty and/or total knee arthroplasty

Year 1: 4/1/2014 – 3/31/2015

Year 2: 4/1/2015 – 3/31/2016

Year 3: 4/1/2016 – 3/31/2017

 

Methodology Sources

AMI, COPD, Heart Failure, Pneumonia, and Stroke Readmission Measures Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Condition-Specific Measures Updates and Specifications Report Hospital-Level 30-Day Risk-Standardized Readmission Measures: Acute Myocardial Infarction – Version 10.0, Chronic Obstructive Pulmonary Disease – Version 6.0, Heart Failure – Version 10.0, Pneumonia – Version 10.0, Stroke – Version 6.0. https://www.qualitynet.org/inpatient/measures/readmission/resources#tab3 Available as of April 4, 2018.

CABG and Hip/Knee Arthroplasty Readmission Measures Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Procedure-Specific Measures Updates and Specifications Report Hospital-Level 30-Day Risk-Standardized Readmission Measures: Isolated Coronary Artery Bypass Graft (CABG) Surgery – Version 4.0, Elective Primary Total Hip Arthroplasty (THA) and/or Total Knee Arthroplasty (TKA) – Version 6.0. https://www.qualitynet.org/inpatient/measures/readmission/resources#tab3. Available as of April 4, 2018.

AMI, COPD, Heart Failure, Pneumonia, and Stroke Mortality Measures Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Condition-Specific Measures Updates and Specifications Report Hospital-Level 30-Day Risk-Standardized Mortality Measures: Acute Myocardial Infarction – Version 11.0, Chronic Obstructive Pulmonary Disease – Version 6.0, Heart Failure – Version 11.0, Pneumonia – Version 11.0, Stroke – Version 6.0. https://www.qualitynet.org/inpatient/measures/mortality/resources#tab3. Available as of April 4, 2018.

CABG Mortality Measure Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Procedure-Specific Measure Updates and Specifications Report Hospital-Level 30-Day Risk-Standardized Mortality Measure: Isolated Coronary Artery Bypass Graft (CABG) Surgery – Version 4.0. https://www.qualitynet.org/inpatient/measures/mortality/resources#tab3 Available as of April 4, 2018.

Hip/Knee Arthroplasty Complication Measure Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Procedure-Specific Measure Updates and Specifications Report Hospital-Level Risk-Standardized Complication Measure: Elective Primary Total Hip Arthroplasty (THA) and/or Total Knee Arthroplasty (TKA) – Version 6.0. https://www.qualitynet.org/inpatient/measures/complication/resources#tab3. Available as of April 4, 2018.

AMI, Heart Failure, Pneumonia, and Hip/Knee Arthroplasty Payment Measures Methodology: Jaymie Simoes, Jacqueline N. Grady, Jo DeBuhr, et al. 2018 Measure Updates and Specifications Report Hospital-Level Risk-Standardized Payment Measures: Acute Myocardial Infarction – Version 6.0, Heart Failure – Version 4.0, Pneumonia – Version 4.0, Elective Primary Total Hip Arthroplasty (THA) and/or Total Knee Arthroplasty (TKA) – Version 3.0. https://www.qualitynet.org/inpatient/measures/payment/resources#tab2. Available as of April 4, 2018.

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