Group characteristics (observation group). Results are given as No (%)
| Characteristic | pSS (n=33) | sSS (n=25) | Non-SS (n=42) | ||
|---|---|---|---|---|---|
| *Present at first visit; †according to European criteria (at least one positive eye test)14; ‡according to Blatt,14a percentages based on the number of patients with available information; §according to definition by European criteria listed in this table. | |||||
| Age at time of referral (mean) | 51 | 54 | 55 | ||
| Sex (male/female) | 3/30 | 4/21 | 2/40 | ||
| Xerogenic drugs | 10 (30) | 15 (60) | 23 (55) | ||
| Chronic fatigue | 21 (63) | 19 (76) | 29 (69) | ||
| Salivary gland swelling* | 17 (51) | 7 (28) | 8 (19) | ||
| Connective tissue disease | 0 (0) | RA: | 14 (56) | RA: | 7 (17) |
| SLE: | 4 (16) | SLE: | 2 (5) | ||
| Scleroderma: | 1 (4) | Scleroderma: | 1 (2) | ||
| CREST: | 1 (4) | ||||
| Vasculitis: | 1 (4) | ||||
| PBC: | 1 (4) | ||||
| Polymyositis: | 1 (4) | ||||
| Overlap syndrome: | 2 (8) | ||||
| Positive salivary gland biopsy | 32 (97) | 24 (96) | 0 (0) | ||
| Positive serology | |||||
| Anti-SS-A | 28 (85) | 13 (52) | 3 (7) | ||
| Anti-SS-B | 15 (45) | 8 (32) | 1 (2) | ||
| Positive eye test(s)† | 25 (76) | 17 (68) | 18 (43) | ||
| Parotid sialography‡ | |||||
| Sialectasia (positive for SS) | 28 (100) | 16 (76) | 3 (8) | ||
| Subjective complaints§ | |||||
| Dry eyes | 24 (73) | 20 (80) | 28 (67) | ||
| Dry mouth | 32 (96) | 23 (92) | 31 (74) | ||