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

. 2021 Jun 22;23:174. doi: 10.1186/s13075-021-02553-4

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

© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

PMC Copyright notice

Fig. 1 — Study workflow depicting the model development and evaluation procedure (orange section) and the criteria comparison analysis (blue section), whereby the important analysis-steps are highlighted in green. We ran the SVM identification on all 17,662 patients of the Rheumatology outpatient clinic. Next, we selected only those patients that were also included in the EAC (n=1188) and who were annotated for the 1987 and 2010 criteria, resulting in a final selection of 1127 patients for the final analysis. The patient collections are indicated by a wave line box, whereby the initial two data sources are colored red (rheumatology outpatient clinic = patients from the Leiden outpatient clinic with the first consult after 2011; early arthritis cohort = research cohort patients with the first consult after 2011).