Related Experiment Video
Updated: Mar 1, 2026
Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
Published on: December 2, 2015
Characterization of JIA subtypes, clinical features, treatment patterns, and early outcomes in Palestinian children:
Fawzy M Abunejma1, Wasef Alhroub2, Ahmad Fasfoos3
1Head of Pediatric Department, Faculty of Medicine, Pediatric Rheumatologist at Al Ahli and PRCS Hospitals, Hebron University, Scientific Research and Medical Development Center-PRCS Hospital, Hebron, Palestine.
Insights
This study reveals key differences in juvenile idiopathic arthritis (JIA) subtypes among Palestinian children, with systemic and polyarticular RF-negative JIA showing higher relapse rates. Findings aid in risk stratification and treatment planning for childhood arthritis.
Area of Science:
- Pediatric Rheumatology
- Clinical Immunology
- Child Health
Background:
- Juvenile idiopathic arthritis (JIA) is a common childhood chronic rheumatologic disease with diverse subtypes.
- Limited data exists on JIA characteristics in the Middle East, including Palestine.
- This study addresses this gap by comparing JIA subtypes in Palestinian children.
Purpose of the Study:
- To compare clinical features, treatment patterns, and short-term outcomes of oligoarticular and non-oligoarticular JIA in Palestinian children.
- To identify factors associated with JIA subtype classification.
- To determine predictors of six-month remission or relapse in JIA patients.
Main Methods:
- Retrospective cohort study of 171 children diagnosed with JIA in Hebron, Palestine (Jan 2019 - Aug 2025).
- Subtype classification using International League of Associations for Rheumatology (ILAR) criteria.
- Statistical analysis including multivariable logistic regression to identify associations with subtype and relapse.
Main Results:
- Persistent oligoarticular JIA was most common (38.0%), followed by polyarticular RF-negative (PRF-) (22.8%) and enthesitis-related arthritis (ERA) (14.6%).
- Systemic JIA patients had earlier onset and higher inflammation; knee involvement was frequent (63.7%).
- After six months, 53.8% achieved remission, with systemic JIA and PRF- JIA showing higher relapse rates. Younger age, knee involvement, and lower ESR predicted oligoarticular JIA.
Conclusions:
- This study offers the first detailed characterization of JIA in Palestinian children, showing significant subtype differences.
- Systemic and PRF- JIA are associated with greater inflammation and poorer short-term outcomes.
- Findings support improved risk stratification and therapeutic strategies, emphasizing the need for regional prospective studies.
Background:
Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatologic disease of childhood and includes a heterogeneous group of subtypes with varying clinical presentations, laboratory profiles, and outcomes. Data from the Middle East, including Palestine, remain limited. This study aimed to compare clinical characteristics, treatment patterns, and short-term outcomes between oligoarticular and non-oligoarticular JIA and to identify factors associated with disease subtype and six-month remission or relapse.
Methods:
A retrospective cohort study was conducted at pediatric rheumatology centers in Hebron, Palestine, including children diagnosed with JIA between January 2019 and August 2025. ILAR criteria were used for subtype classification. Demographic, clinical, laboratory, and treatment data were extracted from medical records. The primary outcome was remission or relapse at six months based on Wallace criteria. Statistical analyses included group comparisons and multivariable logistic regression to identify variables associated with subtype and relapse.
Results:
A total of 171 children were included. Persistent oligoarticular JIA was the most common subtype (38.0%), followed by polyarticular RF-negative (PRF-) (22.8%) and enthesitis-related arthritis (ERA) (14.6%). Systemic JIA patients tended to have a younger age at onset and demonstrated a higher inflammatory burden. Knee arthritis was the most frequent joint involvement (63.7%), and extra-articular manifestations, particularly oral ulcers, rash, and uveitis, differed across subtypes. NSAIDs were used in 62.0% of patients, methotrexate in 79.5%, and biologics in 22.2%. After six months, 53.8% achieved remission while 46.2% relapsed, with systemic JIA and PRF- showing the highest relapse rates. Multivariable analysis showed that younger age, knee involvement, lower ESR, and six-month remission were independently associated with the oligoarticular subtype. Predictors of relapse included PRF- subtype, systemic JIA, and family history of rheumatologic disease.
Conclusion:
This study provides the first detailed characterization of JIA in Palestinian children, highlighting clinically meaningful differences between subtypes and identifying factors associated with remission and relapse. Systemic and PRF- JIA were linked to higher inflammatory activity and poorer short-term outcomes. These findings may support improved risk stratification and therapeutic planning and demonstrate the importance of long-term prospective studies in the region.
Clinical Trial Number:
Not applicable.
More Related Videos
11:31Rapid Fractionation and Isolation of Whole Blood Components in Samples Obtained from a Community-based Setting
Published on: November 30, 2015
09:57Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
Published on: September 20, 2024
Related Concept Videos
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
01:23Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
01:11Clinical Trials: Overview
01:29Bias in Epidemiological Studies
01:08Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
01:29Psychological and Sociocultural Causes of Schizophrenia