Evidence-Based Medicine calculator for sensitivity, specificity, PPV, NPV, NNT, and likelihood ratios. Essential for clinical decision making and biostatistics education.
Evidence-Based Medicine diagnostic test calculator.
| Parameter | Type | Default | Required | Description |
|---|---|---|---|---|
--mode, -m | string | diagnostic | No | Calculation mode (diagnostic, nnt, probability) |
--tp, --true-pos | int | - | * | True positives (diagnostic mode) |
--fn, --false-neg | int | - | * | False negatives (diagnostic mode) |
--tn, --true-neg |
| int |
| - |
| * |
| True negatives (diagnostic mode) |
--fp, --false-pos | int | - | * | False positives (diagnostic mode) |
--prevalence, -p | float | - | No | Disease prevalence 0-1 (diagnostic mode) |
--control-rate | float | - | ** | Control event rate 0-1 (nnt mode) |
--experimental-rate | float | - | ** | Experimental event rate 0-1 (nnt mode) |
--pretest | float | - | *** | Pre-test probability 0-1 (probability mode) |
--lr | float | - | *** | Likelihood ratio (probability mode) |
--output, -o | string | stdout | No | Output file path |
* Required for diagnostic mode
** Required for nnt mode
*** Required for probability mode
{
"sensitivity": "float",
"specificity": "float",
"ppv": "float",
"npv": "float",
"lr_positive": "float",
"lr_negative": "float",
"interpretation": "string"
}
| Risk Indicator | Assessment | Level |
|---|---|---|
| Code Execution | Python/R scripts executed locally | Medium |
| Network Access | No external API calls | Low |
| File System Access | Read input files, write output files | Medium |
| Instruction Tampering | Standard prompt guidelines | Low |
| Data Exposure | Output files saved to workspace | Low |
No additional Python packages required.