Table 1.
SS-related characteristics in the Sjogren's International Collaborative Clinical Alliance (SICCA) registry (N = 3514)a
| Diagnostic Tests | N (%) |
|---|---|
| Ocular eye tests | |
| Schirmer I test | |
| Schirmer I test ≤ 5 mm | 1026 (31.7) |
| Schirmer I test > 5 mm | 2213 (67.7) |
| Tear break-up time | |
| TBUT < 10 seconds | 2868 (84.5) |
| TBUT ≥ 10 seconds | 528 (15.5) |
| Ocular Staining Score (mean) b | |
| Conjunctival Score | 2.99 (2.92 to 3.06). |
| Corneal Score | 2.16 (2.10 to 2.22) |
| Total OSS score | 5.15 (5.03 to 5.27) |
| Salivary Gland Biopsy | |
| Focus Score ≥ 1 | 1305 (39.1) |
| Focus Score < 1 | 2032 (60.9) |
| Positive Serology | |
| SSA or SSB antibodies | |
| Present | 1296 (38.3) |
| Not present | 2086 (61.7) |
| RF and ANA titer ≥ 1:320 | |
| Present | 1382 (40.9) |
| Not present | 2000 (59.1) |
a
Due to missing data, some of the denominators used to compute the proportions above may differ from 3514.
b
Confidence intervals are provided here; this was included as a continuous variable in the regression.