Dropout at follow up
| KCS-PSS | KCS-SSS | KCS-NS | |
|---|---|---|---|
| Patients at entry: | 31 | 19 | 56 |
| Death | 8 | 6 | 10 |
| Unwilling to cooperate | 1 | 1 | 5 |
| Lost to follow up | 1 | 0 | 3 |
| Total | 10 | 7 | 18 |
| Patients at follow up: | 21 | 12 | 38 |
| With rheumatoid arthritis | 6 | ||
| With dermatomyositis | 2 | ||
| With systemic sclerosis | 3 | ||
| With systemic lupus erythematosus | 1 |
KCS-PSS = keratoconjunctivitis sicca in association with primary Sjögren’s syndrome; KCS-SSS = keratoconjunctivitis sicca in association with secondary Sjögren’s syndrome; KCS-NS = keratoconjunctivitis sicca not related to Sjögren’s syndrome.