1. What Are Frequency Rate and Severity Rate?

Frequency Rate (FR) and Severity Rate (SR) are metrics used to assess child safety and health incidents. FR measures how often incidents occur relative to population size, while SR measures the average severity per incident.

2. How Does the Calculator Work?

The calculator uses these equations:

Where:

• \( Incidents \) — Number of reported incidents (unitless)
• \( Population \) — Total population at risk (unitless)
• \( Severity \) — Total severity score (unitless)

Explanation: FR shows incident frequency per capita, while SR shows average severity per incident.

3. Importance of FR and SR Calculation

Details: These metrics help identify risk patterns, evaluate safety programs, and prioritize interventions for child populations.

4. Using the Calculator

Tips: Enter whole numbers for incidents, population, and severity. All values must be ≥0, with population and incidents >0 for valid results.

5. Frequently Asked Questions (FAQ)

Q1: What's considered a "good" FR or SR?
A: Lower FR indicates fewer incidents. SR interpretation depends on your severity scale - lower may indicate less severe incidents.

Q2: How should severity be measured?
A: Use a consistent scale (e.g., 1-10) based on outcomes like medical attention required or days affected.

Q3: What time period should be used?
A: Typically annual rates, but any consistent period works. Ensure all inputs cover the same timeframe.

Q4: Can these rates compare different populations?
A: Yes, when using consistent definitions, but account for population characteristics that may affect rates.

Q5: How sensitive are these rates to small numbers?
A: Very sensitive with small populations. Consider confidence intervals when interpreting small samples.