Pediatric rheumatology

Differences between leukemic arthritis and juvenile idiopathic arthritis

Pediatr Rheumatol Online JPublished Comparative observational study

Study context

Population
Patients <16 years, both genders, first presenting to pediatric rheumatology with probable juvenile idiopathic arthritis (JIA), arthritis and no peripheral blood blastsanalysed
Participants
76 patients
Exposure
Leukemic arthritis vs JIA at disease onset
  • Leukemic arthritis (LA)n = 14
  • JIAn = 62reference
Outcome
Clinical and laboratory differences between LA and JIA at disease onset
Follow-up
Onset of the disease
Methodological detailsbinary logistic regression model
  • Binary logistic regression model

Main finding

As reported in the abstract

onset
  • Mean age at diagnosis lower in LA
  • Female gender prevailed in JIA
  • Time to onset of symptoms lower in LA
  • LA: increased pain intensity, fever, weight loss, nocturnal diaphoresis, lymph node enlargement, hepatosplenomegaly, and pain not improving with analgesics
  • Significant laboratory parameters: anemia, leukopenia, neutropenia
  • Platelet count significant but in a low normal value vs JIA

Observational data: associations, not effects.

Further findings

Binary logistic regression model to differentiate LA from JIA

Probability associated with the statistic (Chi-square)
0.000
Cox and Snell R2
0.615
Nagelkerke R2
1
Cases correctly classified
100%

Original publication

Differences between leukemic arthritis and juvenile idiopathic arthritis. Pediatr Rheumatol Online J. Published 31 May 2023. doi:10.1186/s12969-023-00836-5

Composed by AI from the published abstract and checked against it. How Briefs are made →

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