ParCC: Parameter Converter and Calculator for Health Technology Assessment

An interactive 'shiny' application for Health Technology Assessment (HTA) parameter estimation. Converts between rates, probabilities, odds, and hazard ratios (HR); extrapolates survival curves (Exponential, Weibull, Log-Logistic); fits probabilistic sensitivity analysis (PSA) distributions (Beta, Gamma, LogNormal, Dirichlet) via the method of moments; calculates incremental cost-effectiveness ratios (ICERs), net monetary benefit (NMB), value-based pricing, and budget impact; adjusts costs for inflation, discounting, and purchasing power parity (PPP) across 30 countries; and adjusts background mortality using life-table methods. Designed for researchers building cost-effectiveness and budget-impact models who need auditable, formula-documented parameter transformations. Methods include Zhang and Yu (1998) <doi:10.1001/jama.280.19.1690> for odds ratio (OR) to relative risk (RR) conversion and Chinn (2000, Statistics in Medicine, 19, 3127-3131) for effect-size transformations.

Version:	1.4.0
Imports:	shiny, shinythemes, ggplot2, plotly, DT, rmarkdown, magrittr
Suggests:	knitr, testthat (≥ 3.0.0)
Published:	2026-03-30
DOI:	10.32614/CRAN.package.ParCC
Author:	Abhijit Pakhare [aut, cre], RRC-HTA Team, AIIMS Bhopal [aut]
Maintainer:	Abhijit Pakhare <drpakhare at gmail.com>
BugReports:	https://github.com/drpakhare/ParCC/issues
License:	MIT + file LICENSE
URL:	https://drpakhare.github.io/ParCC/, https://github.com/drpakhare/ParCC
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	ParCC results

Documentation:

Reference manual:

ParCC.html , ParCC.pdf

Vignettes:

ParCC Tutorial Index (source, R code) Background Mortality Adjustments (source, R code) Batch Conversion Workflow (source, R code) Budget Impact Analysis (source, R code) Core Conversions: Rates, Odds, and Time Rescaling (source, R code) Dirichlet Distribution & Log-Logistic Survival (source, R code) Economic Evaluation: ICER, NMB, and Value-Based Pricing (source, R code) Getting Started with ParCC (source, R code) HR-Based Probability Converter (source, R code) NNT/NNH Calculator & Log-rank to Hazard Ratio (source, R code) OR <-> RR Conversion & Effect Size Transformations (source, R code) PPP Currency Conversion & WTP Thresholds (source, R code) Parameterizing Distributions for PSA (source, R code) Survival Extrapolation from Published Curves (source, R code)

Downloads:

Package source:	ParCC_1.4.0.tar.gz
Windows binaries:	r-devel: ParCC_1.4.0.zip, r-release: ParCC_1.4.0.zip, r-oldrel: not available
macOS binaries:	r-release (arm64): ParCC_1.4.0.tgz, r-oldrel (arm64): not available, r-release (x86_64): ParCC_1.4.0.tgz, r-oldrel (x86_64): ParCC_1.4.0.tgz

Linking:

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