CMC Data Analysis & Reporting 2

Question 1

In cardiac registry data, what does 'risk-adjusted mortality' account for that crude mortality does not?

Accepted Answer

Differences in patient baseline risk across providers

Answer

Risk-adjusted mortality controls for differences in patient severity and comorbidities, enabling fair comparison across hospitals or providers.

Question 2

A cardiac catheterization lab reports a 30-day MACE rate of 4.2%. Which denominator is most appropriate for this metric?

Accepted Answer

All patients who underwent PCI or diagnostic catheterization

Answer

MACE rates should be calculated using the full population of patients who underwent the relevant procedure to accurately reflect lab performance.

Question 3

Which statistical method is best for identifying whether a cardiac program is an outlier compared to national benchmarks?

Accepted Answer

Funnel plots with control limits

Answer

Funnel plots visually display performance against a benchmark while accounting for volume, identifying true outliers within expected statistical variation.

Question 4

What is the purpose of a 'run chart' in cardiac quality monitoring?

Accepted Answer

To track a process measure over time and detect trends or shifts

Answer

Run charts plot data sequentially over time, allowing identification of non-random patterns such as trends, shifts, or cycles in cardiac quality metrics.

Question 5

A cardiologist reviews door-to-balloon (DTB) time data with a median of 58 minutes and a mean of 74 minutes. What does this discrepancy most likely indicate?

Accepted Answer

A positively skewed distribution with some very long DTB times

Answer

When the mean exceeds the median significantly, the distribution is right-skewed, meaning a subset of cases with very long DTB times is pulling the mean upward.

CMC - Cardiac Medicine Certification Practice Test

CMC - Cardiac Medicine Certification Practice Test

CMC Data Analysis & Reporting 2