Demographic characteristics and occurrences of certain organ manifestations of primary Sjögren's syndrome (SS) in carbachol responder and non-responder SS patients
| Responders (n=11) | Non-responders (n=11) | |
| Average age (y) | 51.0 | 50.3 |
| Average time since first symptom (y) | 11.8 | 11.2 |
| Articular involvement | 9 | 8 |
| Renal involvement | 3 | 1 |
| Bronchitis sicca | 3 | 1 |
| Pulmonary fibrosis | 1 | 1 |
| Raynaud's phenomenon | 5 | 1 |
| Skin vasculitis | 2 | 1 |
| MALT lymphoma in parotid gland | 2 | 0 |
For organ manifestations, numbers indicate the number of involved patients. For the precise definitions of articular and renal involvement, see table 1. No significant difference was found between the two subgroups.