ebm-calculator

name	ebm-calculator
description	Evidence-Based Medicine calculator for sensitivity, specificity, PPV, NPV, NNT, and likelihood ratios. Essential for clinical decision making and biostatistics education.
version	1.0.0
category	Education
tags	["ebm","biostatistics","calculator","sensitivity","specificity","clinical-reasoning"]
author	AIPOCH
license	MIT
status	Draft
risk_level	Medium
skill_type	Tool/Script
owner	AIPOCH
reviewer
last_updated	2026-02-06

EBM Calculator

Evidence-Based Medicine diagnostic test calculator.

Features

• Sensitivity / Specificity calculation
• PPV / NPV with prevalence adjustment
• Likelihood ratios (LR+ / LR-)
• Number Needed to Treat (NNT)
• Pre/post-test probability conversion

Parameters

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