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Table 1 Preliminary prevalence and incidence rates (per 100,000) of SLE in San Francisco County, CA, USA

From: Preliminary population-based incidence and prevalence estimates of systemic lupus erythematosus: the California Lupus Surveillance Project

  Prevalence (2007) Incidence (2007 to 2009)
Race/ethnicity, sex Number of cases Crude rate (95% CI) Number of cases Crude rate (95% CI)
Overall 704 90.4 (84.0 to 97.3) 121 5.1 (4.3 to 6.1)
  Women 623 162.0 (149.8 to 175.2) 112 9.6 (8.0 to 11.5)
  Men 81 20.6 (16.5 to 25.5) 9 0.7 (0.4 to 1.4)
Black 138 243.0 (205.7 to 287.0) 27 15.9 (10.9 to 23.1)
  Women 121 430.6 (360.5 to 514.2) 25 29.9 (20.3 to 44.2)
  Men 17 59.2 (37.0 to 94.9) 2 2.3 (0.6 to 8.4)
White 255 58.1 (51.4 to 65.7) 43 3.2 (2.4 to 4.3)
  Women 230 111.3 (97.8 to 126.6) 38 6.0 (4.4 to 8.3)
  Men 25 10.8 (7.3 to 15.9) 5 0.7 (0.3 to 1.7)
Asian 264 95.8 (84.9 to 108.1) 39 4.6 (3.4 to 6.3)
  Women 233 158.9 (139.8 to 180.7) 37 8.3 (6.0 to 11.4)
  Men 31 24.0 (16.9 to 34.1) 2 0.5 (0.1 to 1.9)
Hispanic 99 87.7 (72.1 to 106.8) 17 4.9 (3.1 to 7.8)
  Women 87 163.8 (132.9 to 202.0) 16 9.8 (6.0 to 15.9)
  Men 12 20.1 (11.5 to 35.1) 1 0.5 (0.1 to 3.1)