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Computes the Patient-Reported Outcomes (PROs) Joint Contrast (PJC), a residual-based summary that captures information left over after accounting for the clinical Disease Activity index for Psoriatic Arthritis (cDAPSA). PROs (pain and patient global assessment) and joint counts (swollen and tender) are standardized, then each component is adjusted for standardized cDAPSA using natural spline coefficients that were derived from previously published models. The resulting residuals are standardized and combined using fixed principal component loadings, to yield a continuous PJC score and quartile groupings. This package provides a calculator for applying those published coefficients to new datasets; it does not itself estimate spline models or principal components.
| Version: | 0.1.3 |
| Depends: | R (≥ 3.6) |
| Imports: | dplyr, splines, rlang |
| Published: | 2025-09-21 |
| DOI: | 10.32614/CRAN.package.PJCcalculator |
| Author: | Ning Meng [aut, cre], Ji Soo Kim [aut], Ana-Maria Orbai [aut], Scott L. Zeger [aut] |
| Maintainer: | Ning Meng <nmeng2 at jh.edu> |
| License: | MIT + file LICENSE |
| NeedsCompilation: | no |
| CRAN checks: | PJCcalculator results |
| Reference manual: | PJCcalculator.html , PJCcalculator.pdf |
| Package source: | PJCcalculator_0.1.3.tar.gz |
| Windows binaries: | r-devel: PJCcalculator_0.1.3.zip, r-release: PJCcalculator_0.1.3.zip, r-oldrel: PJCcalculator_0.1.3.zip |
| macOS binaries: | r-release (arm64): PJCcalculator_0.1.3.tgz, r-oldrel (arm64): PJCcalculator_0.1.3.tgz, r-release (x86_64): PJCcalculator_0.1.3.tgz, r-oldrel (x86_64): PJCcalculator_0.1.3.tgz |
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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.