Interim Analysis Calculator
Introduction & Importance
Interim analysis is crucial in clinical trials to assess the efficacy and safety of new treatments…
How to Use This Calculator
- Enter the number of participants in each group.
- Enter the number of events (e.g., adverse reactions) in each group.
- Click ‘Calculate’.
Formula & Methodology
The calculator uses the chi-square test for independence to compare the event rates between groups…
Real-World Examples
Data & Statistics
| Group | Events | Rate |
|---|---|---|
| Control | 10 | 0.1 |
| Treatment | 5 | 0.05 |
Expert Tips
- Always consider the sample size and power of your study.
- Be cautious when interpreting interim results.
Interactive FAQ
What is an event in interim analysis?
An event is any occurrence or outcome of interest in a clinical trial.
ClinicalTrials.gov is a valuable resource for finding and learning about clinical trials.
CDC’s guide to clinical trials provides detailed information about the process.