RESUMEN
OBJECTIVE: To study differences in demographic, clinical and immunologic characteristics, activity and cumulative organ damage according to age of onset in systemic lupus erythematosus (SLE). METHODS: Cross-sectional study was performed including 204 SLE patients. Characteristics were compared between juvenile and adult-onset SLE patients using parametric and nonparametric tests (SPSS 23.0). RESULTS: Juvenile-SLE patients had malar rash more often (78.9% vs 53%; p=0.001), oral ulcers (45.5% vs 17.5%; p=0.001), neurological involvement (13.1% vs 3.6%; p=0.02) nephritis (50% vs 33.9%), p=0.04) and haematological manifestations such as hemolytic anaemia (23.6% vs 5.4%; p=0.002) and leukopenia (46.1% vs 4.2%; p<0.001). Arthritis was more prevalent in adult-onset patients (70.9% vs 90%; p<0.04). Overall, 20% of juvenile patients had chronic damage (Systemic Lupus International Collaborating Clinics/Damage Index [SLICC/DI]≥1), However, the percentage of patients with irreversible damage was higher in the adult SLE patient group (24%, p=0.04). No statistically significant differences were found in other characteristics studied. CONCLUSION: In summary, our study confirms the existence of differences in clinical manifestations, according to age at diagnosis of SLE. Juvenile-SLE patients showed a more aggressive clinical presentation.
Asunto(s)
Edad de Inicio , Lupus Eritematoso Sistémico/epidemiología , Adolescente , Adulto , Anemia Hemolítica/etiología , Artritis/etiología , Niño , Estudios Transversales , Femenino , Humanos , Leucopenia/etiología , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/patología , Nefritis Lúpica/etiología , Masculino , Persona de Mediana Edad , Fenotipo , Estadísticas no Paramétricas , Evaluación de Síntomas , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJECTIVE: To investigate the prevalence and associations with clinical manifestations of anti- P ribosomal antibodies in patients with juvenile-onset and adult-onset systemic lupus erythematosus (SLE). METHODS: Clinical and serological data of 30 patients with juvenile-onset SLE (age at onset younger than 16 years old) were compared with data of 92 patients with adult-onset SLE. Symptoms occurring during the entire disease course were considered. Anti- P ribosomal antibodies were tested by ELISA. RESULTS: Anti- P ribosomal antibodies were found significantly more often in pediatric-onset SLE patients (26.7% vs. 6.5%; OR=5.21 [CI95%=1.6-16.5], p=0.003). Alopecia (OR=10.11, CI 95%=1.25-97) and skin rash (non discoid) (OR=4.1, CI 95%=1.25-13.89) were significantly associated with anti- P ribosomal antibodies. CONCLUSION: Anti-ribosomal P antibodies are more often found in patients with juvenile SLE. Alopecia and skin rash were the only clinical manifestations associated to anti-ribosomal P antibodies.