Distribution of autoantibodies based on ethnic background.
| Autoantibody | Asian n = 40 (%) | South Asian, n = 25 (%) | Black, n = 30 (%) | Caucasian, n = 45 (%) | Other, n = 16 (%) | Total, n = 156 (%) | p |
|---|---|---|---|---|---|---|---|
| Anti-dsDNA | 31 (77.5) | 19 (76.0) | 24 (80.0) | 30 (66.7) | 15 (93.8) | 119 (76.3) | NS |
| Antichromatin | 19 (47.5) | 9 (36.0) | 9 (30.0) | 19 (42.2) | 10 (62.5) | 66 (42.3) | NS |
| Antiribosomal P | 12 (30.0) | 5 (20.0) | 7 (23.3) | 8 (17.8) | 3 (18.8) | 35 (22.4) | NS |
| Anti-U1RNP | 25 (62.5) | 11 (44.0) | 19 (63.3) | 11 (24.4) | 14 (87.5) | 80 (51.3) | < 0.0001 |
| Anti-Sm | 19 (47.5) | 10 (40.0) | 16 (53.3) | 11 (24.4) | 10 (62.5) | 66 (42.3) | 0.032 |
| Anti-SSA(Ro) | 19 (47.5) | 8 (32.0) | 14 (46.7) | 13 (28.9) | 8 (50.0) | 62 (39.7) | NS |
| Anti-SSB(La) | 7 (17.5) | 3 (12.0) | 7 (23.3) | 7 (15.6) | 2 (12.5) | 26 (16.7) | NS |
| Antitopoisomerase I | 5 (12.5) | 2 (8.0) | 6 (20.0) | 6 (13.3) | 4 (25.0) | 23 (14.7) | NS |
| Lupus anticoagulant | 7 (17.5) | 6 (24.0) | 2 (6.7) | 7 (15.6) | 1 (6.3) | 23 (14.7) | NS |
| Anticardiolipin | 21 (52.5) | 15 (60.0) | 19 (63.3) | 21 (46.7) | 10 (62.5) | 86 (55.1) | NS |
NS: not statistically significant.