title: Childhood-onset systemic lupus erythematosus: a comparative study of African Americans and Latin Americans.
abstract: This study compared the clinical and serologic features in two different ethnic groups of patients with childhood-onset systemic lupus erythematosus (SLE). One hundred seventy-one SLE patients comprised the study population; 61 (55 girls and 6 boys) were African American with age at onset of 13 +/- 2.9 years, and 110 (97 girls and 13 boys) were Latin American (Colombian) with age at onset of 13 +/- 3.2 years. Clinical, demographic, and laboratory data were obtained by chart review using a standard data collection form. African-American patients more commonly manifested discoid skin lesions, malar rash, pulmonary fibrosis, and pleuritis, and less commonly manifested photosensitivity, livedo reticularis, and vascular thrombosis than did Latin Americans. In addition, there was a higher frequency of anti-dsDNA, anti-Sm, anti-RNP, and anti-Ro positivity among African-Americans compared with Latin-American patients. These results suggest the presence of ethnic differences in the clinical expression of SLE.
authors.affiliation: Department of Pediatrics, LSU Medical Center, New Orleans 70112-2822, USA.
authors.forename: A
authors.initials: A
authors.lastname: Gedalia
authors.forename: J F
authors.initials: JF
authors.lastname: Molina
authors.forename: J
authors.initials: J
authors.lastname: Molina
authors.forename: O
authors.initials: O
authors.lastname: Uribe
authors.forename: C
authors.initials: C
authors.lastname: Malagon
authors.forename: L R
authors.initials: LR
authors.lastname: Espinoza
mesh_terms: D000251:Adenosine Triphosphatases / Q000097:blood; D000293:Adolescent; D001741:Black or African American; D017668:Age of Onset; D000974:Antibodies, Antinuclear / Q000097:blood; D034961:Antigens, Nuclear; D001324:Autoantigens / Q000097:blood; D044383:Black People; D003105:Colombia; D003430:Cross-Sectional Studies; D005006:Ethnicity; D005260:Female; D006801:Humans; D008145:Louisiana; D008180:Lupus Erythematosus, Systemic / Q000097:blood / Q000276:immunology / Q000503:physiopathology*; D008297:Male; D009687:Nuclear Proteins / Q000097:blood; D020733:RNA, Small Cytoplasmic; D012261:Ribonucleoproteins / Q000097:blood; D044465:White People; D000097585:SS-B Antigen; D000099207:SS-A Antigen
chemical_list: D000251:Adenosine Triphosphatases; D000974:Antibodies, Antinuclear; D034961:Antigens, Nuclear; D001324:Autoantigens; D009687:Nuclear Proteins; D020733:RNA, Small Cytoplasmic; D012261:Ribonucleoproteins; D000097585:SS-B Antigen; D000099207:SS-A Antigen; C116006:RO60 protein, human