RT Journal Article SR Electronic T1 American College of Rheumatology Criteria at Inception, and Accrual over 5 Years in the SLICC Inception Cohort JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.130704 DO 10.3899/jrheum.130704 A1 Murray B. Urowitz A1 Dafna D. Gladman A1 Dominique Ibañez A1 Jorge Sanchez-Guerrero A1 Juanita Romero-Diaz A1 Caroline Gordon A1 Sang-Cheol Bae A1 Anne E. Clarke A1 Sasha Bernatsky A1 Paul R. Fortin A1 John G. Hanly A1 David Isenberg A1 Anisur Rahman A1 Daniel J. Wallace A1 Ellen Ginzler A1 Michelle Petri A1 Ian N. Bruce A1 Joan T. Merrill A1 Ola Nived A1 Gunnar Sturfelt A1 Mary Anne Dooley A1 Graciela S. Alarcón A1 Barri Fessler A1 Kristjan Steinsson A1 Rosalind Ramsey-Goldman A1 Asad Zoma A1 Munther Khamashta A1 Susan Manzi A1 Ronald van Vollenhoven A1 Manuel Ramos-Casals A1 Cynthia Aranow A1 Thomas Stoll YR 2014 UL http://www.jrheum.org/content/early/2014/03/26/jrheum.130704.abstract AB Objective To determine the frequency of each American College of Rheumatology (ACR) criterion met at time of enrollment, and the increase in each of the criteria over 5 years. Methods In 2000 the Systemic Lupus International Collaborating Clinics (SLICC) recruited an international inception cohort of patients with systemic lupus erythematosus (SLE; ≥ 4 ACR criteria) who were followed at yearly intervals according to a standard protocol. Descriptive statistics were used to assess the total and cumulative number of ACR criteria met at each visit. Regression models were done to compare the increase of individual and cumulative criteria as a function of race/ethnicity group, and sex. Results In all, 768 patients have been followed for a minimum of 5 years. Overall, 59.1% of the patients had an increase in the number of ACR criteria they met over the 5-year period. The mean number of ACR criteria met at enrollment was 5.04 ± 1.13 and at year 5 was 6.03 ± 1.42. At enrollment, nonwhite patients had a higher number of ACR criteria (5.19 ± 1.23) than white patients. The total number of criteria increased in both white and nonwhite ethnicities, but increased more among whites. Males had a slightly lower number of criteria at enrollment compared to females and males accrued fewer criteria at 5 years. Conclusion In this international inception cohort of SLE patients with at least 4 ACR criteria at entry, there was an accumulation of ACR criteria over the following 5 years. The distribution of criteria both at inception and over 5 years is affected by sex and ethnicity.