Related Experiment Video
Updated: May 21, 2026

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
Clinical and demographic features of Behçets: a retrospective analysis of 4007 patients from a single centre in
Nasim Behkami1, Ömer Mangır2, Zekayi Kutlubay1
1Cerrahpaşa Medical Faculty, İstanbul University-Cerrahpaşa, Istanbul, Turkey.
Insights
Behçet
Area of Science:
- Rheumatology
- Immunology
- Genetics
Background:
- Behçet's disease is a multisystem inflammatory condition.
- It can lead to severe vascular and neurological complications.
Purpose of the Study:
- To evaluate demographic and clinical characteristics of a large Behçet's disease cohort.
- To investigate associations of sex, age at onset, and HLA-B51 status with organ involvement patterns.
Main Methods:
- Retrospective cross-sectional study of 4007 patients.
- Data analyzed based on gender, age of onset, and HLA-B51 status.
- Statistical analyses performed using SPSS 22.0.
Main Results:
- Males had higher rates of ocular, vascular, and neurological involvement; females had more joint involvement.
- HLA-B51 associated with joint, ocular involvement, and pathergy positivity.
- Early-onset disease (<16 years) linked to increased systemic involvement; male sex and early onset associated with ocular/neurological involvement.
Conclusions:
- Organ involvement in Behçet's disease varies significantly by sex, age at onset, and HLA-B51 status.
- These factors are crucial for clinical evaluation and understanding disease heterogeneity.
Background:
Behçets is a multisystem inflammatory condition that can lead to severe vascular and neurological complications.
Objectives:
To evaluate the demographic and clinical characteristics of a large single-centre cohort of patients with Behçets and to investigate the associations of sex, age at onset and human leucocyte antigen B51 (HLA-B51) status with organ involvement patterns.
Methods:
A retrospective cross-sectional study was conducted on 4007 patients who had been followed-up since 2010 at the Behçet's Disease Research and Application Center at Istanbul University-Cerrahpaşa, Turkey. Demographic data and details of clinical features and organ involvement were extracted and analysed statistically based on sex, age of disease onset and HLA-B51 status.
Results:
The mean (SD) age of patients was 42.9 (11.4) years, with a male to female ratio of 1.1:1. Men exhibited higher rates of ocular, vascular and neurological involvement, while women had more joint involvement. HLA-B51 was associated with joint and ocular involvement and pathergy positivity. Early-onset disease (onset < 16 years) was observed in 11% (n = 448/4007) of patients and was associated with increased rates of systemic involvement. Joint involvement (n = 1553/4007, 39%) mostly appeared as arthralgia or arthritis. Gastrointestinal involvement (n = 115/4007, 2.9%) was associated with diabetes mellitus. Pathergy positivity was observed in 21% (n = 823/4007) of patients and was associated with early disease onset and smoking. Multivariable analyses showed that male sex and early disease onset were associated with ocular and neurological involvement, whereas vascular involvement was associated with male sex, early onset and smoking.
Conclusions:
Organ involvement in Behçets varies by sex, age at onset and HLA-B51 status, highlighting the importance of these factors in clinical evaluation.
Related Concept Videos
Inflammatory Bowel Disease IV: Clinical Manifestations
Inflammatory Bowel Disease III: Crohn's Disease