Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 Feb 24;14:1090747. doi: 10.3389/fneur.2023.1090747

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2023 Bonilla, Quach, Tiwari, Bonilla, Miglis, Yang, Eggert, Sharifi, Horomanski, Subramanian, Smirnoff, Simpson, Halawi, Sum-ping, Kalinowski, Patel, Shafer and Geng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Quality of representation of 13 most common symptoms mapped to the first five dimensions (A) and principal components analysis correlation circle (B). Insomnia and ageusia were not included in the analysis. The closer the variable to the correlation circle, the better the representation on the factor map. The quality of the representation of the symptom on the first five dimensions is measured by the squared cosine between the symptom vector and its projection on the dimension. The proportions on the left side of the factor map represent a color scale (14). CP, Chest pain; GISx, Gastrointestinal symptoms; Anex/Depr, Anxiety/Depression; HA, Headache; Lethargy, daytime sleepiness; UnRefrSleep, Unrefreshed sleep; PEM, Post-Exertional Malaise.