Incidence and prevalence of SLE by year 1990–2020
| Year | Number incident SLE cases | Person-years | Incidence rate per 100 000 person-years (95% CI) | Number prevalent SLE cases | Point prevalence per 100 000 (95% CI) |
| 1990 | – | – | – | 116 | 21.4 (17.68 to 25.67) |
| 1991 | 39 | 753 679 | 5.17 (3.68 to 7.07) | 191 | 25.24 (21.79 to 29.09) |
| 1992 | 46 | 892 119 | 5.16 (3.78 to 6.88) | 273 | 31.23 (27.64 to 35.17) |
| 1993 | 46 | 101 918 | 4.51 (3.3 to 6.02) | 350 | 34.32 (30.82 to 38.11) |
| 1994 | 57 | 109 331 | 5.21 (3.95 to 6.75) | 428 | 39.53 (35.88 to 43.46) |
| 1995 | 53 | 117 166 | 4.52 (3.39 to 5.92) | 515 | 44.09 (40.36 to 48.07) |
| 1996 | 72 | 132 422 | 5.44 (4.25 to 6.85) | 633 | 47.44 (43.81 to 51.28) |
| 1997 | 87 | 156 765 | 5.55 (4.45 to 6.85) | 788 | 51 (47.5 to 54.69) |
| 1998 | 111 | 181 522 | 6.11 (5.03 to 7.36) | 962 | 53.85 (50.51 to 57.37) |
| 1999 | 124 | 222 178 | 5.58 (4.64 to 6.65) | 1215 | 55.75 (52.66 to 58.97) |
| 2000 | 177 | 277 007 | 6.39 (5.48 to 7.4) | 1575 | 57 (54.22 to 59.89) |
| 2001 | 206 | 3 175 621 | 6.49 (5.63 to 7.44) | 1924 | 61.14 (58.44 to 63.94) |
| 2002 | 258 | 370 777 | 6.96 (6.14 to 7.86) | 2366 | 64.16 (61.6 to 66.8) |
| 2003 | 255 | 420 606 | 6.06 (5.34 to 6.85) | 2810 | 67.24 (64.78 to 69.78) |
| 2004 | 252 | 468 865 | 5.37 (4.73 to 6.08) | 3230 | 68.65 (66.3 to 71.05) |
| 2005 | 279 | 486 354 | 5.74 (5.08 to 6.45) | 3494 | 71.67 (69.31 to 74.09) |
| 2006 | 267 | 495 055 | 5.39 (4.77 to 6.08) | 3696 | 74.98 (72.58 to 77.43) |
| 2007 | 305 | 503 333 | 6.06 (5.4 to 6.78) | 3976 | 79.26 (76.82 to 81.76) |
| 2008 | 294 | 506 977 | 5.8 (5.16 to 6.5) | 4241 | 83.63 (81.14 to 86.19) |
| 2009 | 238 | 509 782 | 4.67 (4.09 to 5.3) | 4435 | 86.84 (84.3 to 89.43) |
| 2010 | 287 | 506 876 | 5.66 (5.03 to 6.36) | 4558 | 89.67 (87.08 to 92.31) |
| 2011 | 318 | 499 833 | 6.36 (5.68 to 7.1) | 4692 | 93.44 (90.79 to 96.15) |
| 2012 | 264 | 496 640 | 5.32 (4.69 to 6) | 4815 | 96.64 (93.93 to 99.4) |
| 2013 | 264 | 479 323 | 5.51 (4.86 to 6.21) | 4788 | 99.53 (96.74 to 102.39) |
| 2014 | 202 | 449 770 | 4.49 (3.89 to 5.16) | 4522 | 100.24 (97.34 to 103.21) |
| 2015 | 198 | 403 842 | 4.9 (4.24 to 5.64) | 4151 | 101.86 (98.79 to 105.01) |
| 2016 | 166 | 348 648 | 4.76 (4.06 to 5.54) | 3617 | 103.57 (100.22 to 107) |
| 2017 | 160 | 319 613 | 5.01 (4.26 to 5.84) | 3315 | 104 (100.49 to 107.6) |
| 2018 | 134 | 304 508 | 4.4 (3.69 to 5.21) | 3226 | 106.33 (102.7 to 110.06) |
| 2019 | 119 | 294 198 | 4.04 (3.35 to 4.84) | 3154 | 106.59 (102.91 to 110.38) |
| 2020 | – | – | – | 2878 | 107.14 (103.26 to 111.12) |