Characteristics of 105 patients with primary Sjögren's syndrome
| 1976–1992 (n=50) | 1993–2005 (n=55) | Total (n=105) | p Value | ||||
|---|---|---|---|---|---|---|---|
| N | Value* | N | Value* | N | Value* | ||
| Sex, female (%) | 50 | 48 (96) | 55 | 48 (87) | 105 | 96 (91) | 0.11 |
| Age at incidence, years | 50 | 57.5 (23–95) | 55 | 59.2 (26–86) | 105 | 59.2 (23–95) | 0.96 |
| Length of follow-up, years | 50 | 17.2 (0.4–34.2) | 55 | 7.7 (0.1–17.3) | 105 | 9.2 (0.1–34.2) | – |
| Smoking | |||||||
| Never | 44 | 29 (66) | 52 | 27 (52) | 96 | 56 (58) | 0.020 |
| Current | 8 (18) | 4 (8) | 4 (8) | ||||
| Former | 7 (16) | 21 (40) | 21 (40) | ||||
N is the number of patients with parameter reported in the medical records.
*Value is N (%) or median (minimum, maximum). Percentages are calculated based on available N.