Table 1.
Demographic data in pSS patients and controls.
| Parameter | Value (mean ± standard deviation) | |
|---|---|---|
| pSS patients | Controls | |
| Sex (n (%)) | 32 | 32 |
| Males | 8 (25%) | 8 (25%) |
| Females | 24 (75%) | 24 (75%) |
| Mean age (years) | 52.28 ± 10.08 | 51.78 ± 7.46 |
| Mean length of sicca symptom evolution (years) | 3.79 ± 1.18 | — |
| The drugs used by the pSS patients in the moment of investigation | Hydroxychloroquine (16 patients) | — |
| Azathioprine (10 patients) | ||
| Methotrexate (6 patients) | ||
| Extraglandular involvement in pSS patients | — | |
| Malignant lymphoma | 3 patients (9.37%) | |
| Articular involvement | 8 patients (25%) | |
| Pulmonary involvement | 5 patients (15.62%) | |
| Renal involvement (renal tubular acidosis type 1) | 7 patients (21.87%) | |
| Cutaneous vasculitis | 3 patients (9.37%) | |