Table 2.
CTD-IP cases. Patients are allocated according to fulfillment of classification criteria for the different connective tissue diseases (CTD) at the end of follow-up.
| Rheumatoidarthritis | Systemicsclerosis | Inflammatorymyopathy | Sjögren | Lupus | Mixedconnectivetissuedisease | |
|---|---|---|---|---|---|---|
| Number | 21 + 1 overlapping case | 14 + 2 ovarlapping cases | 20 + 1 overlapping case | 4 + 1 overlapping case | 1 ovarlapping case | 1 |
| Women, n (%) | 16 (73) | 12 (75) | 15 (75) | 4 (100) | 1 (100) | 1 (100) |
| Eversmoker, n (%) | 10 (48) | 4 (29) | 14 (67) | |||
| Smoking status, n: never, past, active smoker | 12, 5, 5 | 12, 4, 0 | 7, 7, 7 | 4, 0, 0 | 1, 0, 0 | 1, 0, 0 |
| Age at onset, mean (SEM) median | 60.1 (3.4) 62 | 46.8 (4.5) 48 | 51.8 (2.4) 53.5 | |||
| Age at endpoints, mean (SEM) median | 76.3 (2.4) 80 | 61.4 (3.9) 63 | 60.8 (2) 61.5 | |||
| Disease duration, mean (SEM) median | 9.1 (1.5) 8 | 9.1 (1.3) 8.5 | 6.8 (1.1) 6.5 | |||
| Follow-up, (patient-years) | 200 | 146 | 139 | 53 | 9 | 3 |
| Respiratory onset, n | 4 | 3 | 3 | 2 | 0 | 0 |
| Extra-respiratory onset, n | 18 | 10 | 5 | 2 | 1 | 1 |
| Synchronic pulmonary and extra pulmonary disease at onset, n | 0 | 3 | 13 | 1 | 0 | 0 |