Lost to followup | | | 10 (13.0) | | 4 (12.5) |
Female:male | 1:1.1 | 1:1.5 | 1:1.4 | 1:1.1 | 1:1.1 |
Mean age, yrs (range) | 10.6 (8–13) | 10.8 (8–13) | 14 (11–16) | 10.5 (8–13) | 13.4 (11–16) |
MSP | 77 (29.5) | 77 (100.0) | 37 (55.2) | 17 (53.1) | 11 (39.3) |
ANA+ | 32 (12.3) | 10 (13.0) | 30 (44.8) | 32 (100.0) | 26 (92.9) |
Titer | | | | | |
1:80 | 22 (8.4) | 6 (7.8) | 17 (25.4) | 22 (68.8) | 5 (17.9) |
1:160 | 8 (3.1) | 3 (3.9) | 6 (8.9) | 8 (25.0) | 7 (25.0) |
1:320 | 1 (0.4) | 0 (0.0) | 4 (5.9) | 1 (3.1) | 10 (35.7) |
1:640 | 1 (0.4) | 1 (1.3) | 3 (4.5) | 1 (3.1) | 4 (14.3) |
Pattern | | | | | |
Nuclear fine speckles | 12 (37.5) | 4 (40.0) | 23 (76.7) | 12 (37.5) | 14 (53.8) |
Homogeneous | 10 (31.3) | 2 (20.0) | 5 (16.7) | 10 (31.3) | 4 (15.4) |
Nuclear coarse speckles | 5 (15.6) | 2 (20.0) | 2 (6.6) | 5 (15.6) | 5 (19.2) |
Nucleolar | 3 (9.4) | 1 (10.0) | 0 (0.0) | 3 (9.4) | 2 (7.7) |
Centriolar | 1 (3.1) | 0 (0.0) | 0 (0.0) | 1 (3.1) | 1 (3.9) |
Multiple nuclear dots | 1 (3.1) | 1 (10.0) | 0 (0.0) | 1 (3.1) | 0 (0.0) |
Prepubertal subjects | 184 (70.5) | 64 (83.1) | 22 (32.8) | 25 (78.1) | 11 (39.3) |
Pubertal subjects | 77 (29.5) | 13 (16.9) | 45 (67.2) | 7 (21.9) | 17 (60.7) |
Family history of autoimmune diseases | 17 (6.5) | 4 (5.2) | 5 (7.1) | 3 (9.4) | 4 (14.3) |