Presence of antibodies in relation to clinical characteristics of the patients
| Characteristics | Patients without antibodies n | Patients with antibodies* n (%) |
|---|---|---|
| *Table 2 presents the prevalence of antibodies to individual bacteria. | ||
| †Iritis not resolved within three months. | ||
| Sex: | ||
| Men | 5 | 33 (87) |
| Women | 3 | 23 (88) |
| Age at examination: | ||
| ≤40 years | 4 | 22 (85) |
| >40 years | 4 | 34 (89) |
| Years from the first AAU: | ||
| ≤10 years | 6 | 39 (87) |
| >10 years | 2 | 17 (89) |
| Eye complications: | ||
| None | 4 | 43 (91) |
| Yes | 4 | 13 (76) |
| Spondyloarthropathy: | ||
| None | 7 | 41 (85) |
| Yes | 1 | 15 (94) |
| HLA-B27 antigen: | ||
| Negative | 2 | 7 (78) |
| Positive | 6 | 49 (89) |
| Chronic eye disease:† | ||
| No | 7 | 50 (88) |
| Yes | 1 | 6 (86) |