The Calculators and Utilities provided below may help you in developing your study
| Sample Size -- Means
Comparing means (t-test) |
| Sample Size -- Proportions
Comparing proportions (chi-square test) |
| Sample Size -- Confidence Interval For the Mean of a Continuous Measurement Estimating a mean with a confidence interval of a particular width |
| Sample Size -- Confidence Interval For a Proportion
Estimating a proportion with a confidence interval of a particular width |
| Sample Size -- Survival Analysis
Estimating Sample Sizes for Time-to-Event Analysis |
| Confidence Interval -- Likelihood Ratio
Confidence Interval for a Likelihood Ratio |
| Posterior Probability of Disease Calculator
Determine the Posterior Probability of Disease Given a Particular Test Result |
| BMI Calculator - Adult
Simple BMI Calculator based on weight and height |
| BMI Percentile Calculator - Pediatric
Pediatric BMI Percentile Calculator based on a child's age, gender, weight and height. Provides BMI and Percentile values |
| Blood Pressure Calculator - Pediatric
Pediatric Blood Pressure Calculator based on age and height. Provides Percentiles for SBP and DBP |
| Apache III Score Calculator (Beta)
Provides a Apache III Score for a critical patient. |