title: Incidence of systemic lupus erythematosus in a population-based cohort using revised 1997 American College of Rheumatology and the 2012 Systemic Lupus International Collaborating Clinics classification criteria.
abstract: In 2012, the Systemic Lupus International Collaborating Clinics (SLICC) group published a new set of classification criteria for systemic lupus erythematosus (SLE). Studies applying these criteria to real-life scenarios have found either equal or greater sensitivity and equal or lower specificity to the 1997 ACR classification criteria (ACR 97). Nonetheless, there are no studies that have used the SLICC 12 criteria to investigate the incidence of lupus. We used the resource of the Rochester Epidemiology Project to identify incident SLE patients in Olmsted County, Minnesota, from 1993 to 2005, who fulfilled the ACR 97 or SLICC 12 criteria. A total of 58 patients met criteria by SLICC 12 and 44 patients met criteria by ACR 97. The adjusted incidence of 4.9 per 100,000 person-years by SLICC 12 was higher than that by ACR 97 (3.7 per 100,000 person-years, p = 0.04). The median duration from the appearance of first criterion to fulfillment of the criteria was shorter for the SLICC 12 than for ACR 97 (3.9 months vs 8.1 months). The higher incidence by SLICC 12 criteria came primarily from the ability to classify patients with renal-limited disease, the expansion of the immunologic criteria and the expansion of neurologic criteria.
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: P
authors.initials: P
authors.lastname: Ungprasert
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: V
authors.initials: V
authors.lastname: Sagar
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.|2 Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
authors.forename: C S
authors.initials: CS
authors.lastname: Crowson
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.|3 Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
authors.forename: S
authors.initials: S
authors.lastname: Amin
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: A
authors.initials: A
authors.lastname: Makol
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: F C
authors.initials: FC
authors.lastname: Ernste
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: T G
authors.initials: TG
authors.lastname: Osborn
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: K G
authors.initials: KG
authors.lastname: Moder
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: T B
authors.initials: TB
authors.lastname: Niewold
authors.affiliation: 3 Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.|4 Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
authors.forename: H
authors.initials: H
authors.lastname: Maradit-Kremers
authors.affiliation: 5 Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
authors.forename: R
authors.initials: R
authors.lastname: Ramsey-Goldman
authors.affiliation: 1 Division of Rheumatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
authors.forename: V R
authors.initials: VR
authors.lastname: Chowdhary
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D015994:Incidence; D008180:Lupus Erythematosus, Systemic / Q000145:classification* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology; D012044:Regression Analysis; D012219:Rheumatology; D012720:Severity of Illness Index; D012955:Societies, Medical; D055815:Young Adult
keywords: Systemic lupus erythematosus; classification criteria; epidemiology