Table 4.
Demographic and clinical variables of the HLA-B27+ study population. Abbreviations: NSAIDs, nonsteroidal anti-inflammatory drugs, SpA; spondyloarthritis. The number of offspring is one less than that reported in Table 1, as the subject with SpA was included in the SpA group.
| Feature | Offspring | SpA |
|---|---|---|
| n | 31 | 24 |
| Demographics | ||
| Male Sex | 12 (38.7%) | 15 (62%) |
| Age (years) | 10.6 ± 3.7 | 13.5 ± 2.9 |
| Race | ||
| White | 11 (36%) | 17 (71%) |
| Asian | 4 (13%) | 1 (4.2%) |
| Black | 0 | 4 (17%) |
| American Indian | 2 (6.5%) | 0 |
| Multiracial | 14 (45%) | 1 (4.2%) |
| Unknown | 0 | 1 (4.2%) |
| Hispanic ethnicity | 5 (16.1%) | 0 |
| NSAID usage | 0 | 7 (29.2%) |
| Sacroiliitis | 0 | 17 (71%) |
| Enthesitis | 0 | 11 (46%) |
| Acute anterior uveitis | 0 | 0 |
| Body mass index (mg/kg2 ± SD) | 17.8 ± 3.7 | 18.1 ± 3.8 |