Table 2 Baseline general characteristics of patients who developed another connective tissue disease
pSS (n = 651) | pSS + another ARD (n = 30) | p | |
|---|---|---|---|
Female gender (%) | 93.33 | 96.10 | 0.34 |
Mean age (± SD) | 54 (± 14) | 53 (± 14) | 0.83 |
Age at diagnosis, mean (± SD) | 50 (± 13) | 48 (± 13) | 0.63 |
Anti Ro/SS-A + (%) | 74.12 | 82.14 | 0.50 |
Anti La/SS-B + (%) | 43.55 | 33.33 | 0.29 |
RF + (%) | 50.80 | 62.96 | 0.21 |
Positive salivary gland biopsy (%) | 86.53 | 78.57 | 0.42 |