Power BI Solution for KPIs in Emergency Department of Acute Hospital

This section provides a comprehensive solution to calculate KPIs for the Emergency Department of an Acute Hospital. The script includes the necessary DAX (Data Analysis Expressions) for both numerators and denominators required to compute these KPIs.

List of KPIs

1. Average Waiting Time
2. Patient Admission Rate
3. Discharge Rate
4. Revisit Rate within 30 days

DAX Definitions for KPIs

Below are the DAX formulas for the numerators and denominators of each KPI.

1. Average Waiting Time

Numerator: Total Waiting Time

// Total Waiting Time (in minutes)
TotalWaitingTime = 
SUM('EmergencyData'[WaitingTime])

Denominator: Total Number of Patients

// Total Number of Patients
TotalPatients = 
COUNT('EmergencyData'[PatientID])

KPI Calculation

// Average Waiting Time (minutes per patient)
AverageWaitingTime = 
DIVIDE([TotalWaitingTime], [TotalPatients])

2. Patient Admission Rate

Numerator: Number of Admitted Patients

// Number of Admitted Patients
AdmittedPatients = 
CALCULATE(
    COUNT('EmergencyData'[PatientID]),
    'EmergencyData'[AdmissionStatus] = "Admitted"
)

Denominator: Total Number of Patients

// Reuse the TotalPatients measure

KPI Calculation

// Admission Rate (Percentage)
AdmissionRate = 
DIVIDE([AdmittedPatients], [TotalPatients], 0) * 100

3. Discharge Rate

Numerator: Number of Discharged Patients

// Number of Discharged Patients
DischargedPatients = 
CALCULATE(
    COUNT('EmergencyData'[PatientID]),
    'EmergencyData'[AdmissionStatus] = "Discharged"
)

Denominator: Total Number of Patients

// Reuse the TotalPatients measure

KPI Calculation

// Discharge Rate (Percentage)
DischargeRate = 
DIVIDE([DischargedPatients], [TotalPatients], 0) * 100

4. Revisit Rate within 30 Days

Numerator: Number of Revisits within 30 Days

// Number of Revisits within 30 Days
Revisits30Days = 
CALCULATE(
    COUNT('EmergencyData'[PatientID]),
    DATEDIFF('EmergencyData'[DischargeDate], 'EmergencyData'[RevisitDate], DAY) <= 30
)

Denominator: Total Number of Patients

// Reuse the TotalPatients measure

KPI Calculation

// Revisit Rate within 30 Days (Percentage)
RevisitRate30Days = 
DIVIDE([Revisits30Days], [TotalPatients], 0) * 100

Practical Usage Example

Here's how you can use the above-defined measures in Power BI to create visuals for monitoring the KPIs in the Emergency Department:

1. Average Waiting Time Chart:

   • Use a Card Visual to display [AverageWaitingTime].

2. Admission Rate Chart:

   • Use a Card Visual to display [AdmissionRate].

3. Discharge Rate Chart:

   • Use a Card Visual to display [DischargeRate].

4. Revisit Rate within 30 Days Chart:

   • Use a Card Visual to display [RevisitRate30Days].

Best Practices

• Nomenclature: Use clear and concise names for your measures.
• Validation: Ensure that your data does not contain any anomalies or missing values.
• Optimization: Use CALCULATE judiciously to avoid performance hits.

For more in-depth training and advanced techniques, consider joining courses available on the Enterprise DNA platform.

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This succinctly covers the necessary steps and DAX code to calculate and visualize key performance indicators (KPIs) for the Emergency Department of an Acute Hospital in Power BI.