Table 2.
ANA fine specificities (ALBIA) in relation to mean age and sex among the 825 healthy blood donors.
| ANA fine specificity | Positive, n (%) | Mean age (years) | Positive, n (%) | Females, n (%) | Males, n (%) | p value |
|---|---|---|---|---|---|---|
| dsDNA | 7 (0.8) | 36.9 | 7 (0.8) | 5 (71.4) | 2 (28.6) | 0.23 |
| Ro60/SSA | 16 (1.9) | 48.9 | 16 (1.9) | 5 (31.3) | 11 (68.8) | 0.15 |
| Ro52/SSA | 5 (0.6) | 48.4 | 5 (0.6) | 3 (60) | 2 (40) | 0.25 |
| La/SSB | 4 (0.5) | 53.0 | 4 (0.5) | 1 (25) | 3 (75) | 0.34 |
| Sm | 0 | – | 0 | 0 | 0 | ∞ |
| SmRNP | 1 (0.1) | 25.0 | 1 (0.1) | 0 | 1 (100) | ∞ |
| U1-RNP | 15 (1.8) | 43.6 | 15 (1.8) | 12 (80) | 3 (20) | 0.014 |
| Scl70 | 3 (0.4) | 52.0 | 3 (0.4) | 0 | 3 (100) | ∞ |
| Jo1 | 5 (0.6) | 43.6 | 5 (0.6) | 2 (40) | 3 (60) | 0.69 |
| CENP-B | 2 (0.2) | 49.5 | 2 (0.2) | 0 | 2 (100) | ∞ |
| RiboP | 2 (0.2) | 28.5 | 2 (0.2) | 1 (50) | 1 (50) | 0.97 |
| Histone | 2 (0.2) | 46.0 | 2 (0.2) | 1 (50) | 1 (50) | 0.97 |
| PmScl | 18 (2.2) | 50.6 | 18 (2.2) | 6 (33.3) | 12 (66.7) | 0.18 |
| PCNA | 13 (1.6) | 35.7 | 13 (1.6) | 4 (30.8) | 9 (69.2) | 0.19 |
| ≥ 1 specificity | 82 (9.9) | 45.1 | 82 (9.9) | 34 (41.5) | 48 (58.5) | 0.16 |
| > 1 specificity | 5 (0.6) | 45.8 | 5 (0.6) | 2 (40) | 3 (60) | 0.69 |
| Negative | 743 (90.1) | 42.3 | 743 (90.1) | 369 (91.6) | 374 (88.6) | 0.16 |
Bold value indicates that statistical significance was reached; i.e., U1-RNP positivity was more common among female HBD.