Hazard Ratio to Percentage Calculator
Here's a conversion table that shows the relationship between Hazard Ratios (HR) and their corresponding percentage increase or decrease in risk:
Hazard Ratio (HR) to Percentage Conversion Table
| Hazard Ratio (HR) | Risk Change (%) | Interpretation |
|---|---|---|
| 0.20 | -80% | 80% lower risk |
| 0.25 | -75% | 75% lower risk |
| 0.33 | -67% | 67% lower risk |
| 0.50 | -50% | 50% lower risk |
| 0.67 | -33% | 33% lower risk |
| 0.80 | -20% | 20% lower risk |
| 1.00 | 0% | No effect (reference) |
| 1.20 | +20% | 20% higher risk |
| 1.33 | +33% | 33% higher risk |
| 1.50 | +50% | 50% higher risk |
| 2.00 | +100% | 2x (100% higher risk) |
| 3.00 | +200% | 3x (200% higher risk) |
| 4.00 | +300% | 4x (300% higher risk) |
| 5.00 | +400% | 5x (400% higher risk) |
Formula for Conversion:
- Percentage Change = (HR - 1) × 100%
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