Table 2 Proportion of positive results for specific auto-antibodies from confirmatory assays (%)
Number and proportion of positive results in samples with ANA titer (n (%)) | |||||
|---|---|---|---|---|---|
Antibody | Number of positive results (n) | Proportion of positive results for all antibodies (%) (N = 83) | 1:80 and 1:160 | 1:320 and 1:640 | ≥1:1280 |
DFS-70 | 13 | 15.7 | 3 (23) | 6 (46) | 4 (31) |
dsDNA | 7 | 8.4 | 2 (29) | 5 (71) | 0 (0) |
SSA | 4 | 4.8 | 0 (0) | 2 (50) | 2 (50) |
Nukl | 4 | 4.8 | 1 (25) | 3 (75) | 0 (0) |
Histon | 4 | 4.8 | 0 (0) | 4 (100) | 0 (0) |
AMA | 2 | 2.4 | 0 (0) | 0 (0) | 2 (100) |
CENPB | 2 | 2.4 | 0 (0) | 0 (0) | 2 (100) |
ENA | 2 | 2.4 | 0 (0) | 2 (100) | 0 (0) |
sp100 | 2 | 2.4 | 0 (0) | 0 (0) | 2 (100) |
SSB | 1 | 1.2 | 0 (0) | 1 (100) | 0 (0) |
Myositis blot | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
SSC blot | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
Rib-P | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
Jo-1 | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
U1 RNP | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
Sm | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
Gp210 | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
LBR | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |
F-actin | 0 | 0 | 0 (0) | 0 (0) | 0 (0) |