Table 2.

Characteristics of incident SLE cases (n = 94) in Nurses’ Health Study II cohort with ≥ 4 American College of Rheumatology (ACR) classification criteria for SLE.

Characteristic
ACR criteria, mean ± SD5.0 ± 1.0
Age at SLE diagnosis, mean yrs ± SD44.9 ± 8.7
ANA-positive93 (98.9)
Anti-dsDNA–positive49 (52.1)
Anti-Ro or Anti-La–positive17 (18.1)
Anti-Sm–positive6 (6.4)
Anti-RNP–positive6 (6.4)
Arthritis69 (73.4)
Hematologic involvement60 (63.8)
Renal involvement11 (11.7)
Seen by an ACR member rheumatologist82 (87.2)
  • Values are n (%) unless otherwise indicated. SLE: systemic lupus erythematosus; ANA: antinuclear antibody.