PTSDdiag

Getting Started Comparing Criteria Reference Publication

Description

PTSDdiag is a comprehensive R package for analyzing and simplifying PTSD diagnostic criteria using PCL-5 (PTSD Checklist for DSM-5) data. It provides tools to identify optimal subsets of six PCL-5 items that maintain diagnostic accuracy while reducing assessment burden.

Key Features

• Data preparation and standardization for PCL-5 scores
• Implementation of DSM-5 diagnostic criteria
• Calculation of diagnostic metrics and summary statistics
• Simplification of diagnostic criteria through:
  • Hierarchical (cluster-based) approach
  • Non-hierarchical approach
• Comparison of different diagnostic approaches
• Model validation using:
  • Holdout Validation
  • Cross-Validation

Installation

You can install the released version of PTSDdiag from CRAN:

install.packages("PTSDdiag")

Or install the development version from GitHub:

# install.packages("devtools")
devtools::install_github("TobiasRSpiller/PTSDdiag")

Getting Started

The vignettes demonstrate how to prepare PCL-5 data, find the optimal minimal symptom combinations for PTSD diagnosis, compare different diagnostic approaches (including ICD-11 and the clinician-administered CAPS-5), and validate the resulting definitions within and across cohorts.

• Getting started with PTSDdiag
• Comparing diagnostic criteria
• Validating abbreviated symptom definitions
• Validating a shared definition across sites
• CAPS-5 workflow
• Package Website

Bugs, Contributions

• If you have any suggestions or if you find a bug, please report them using GitHub issue tracker.
• Contributions are welcome! Please feel free to submit a Pull Request.