Table 1.
Demography of 448 adults (age ≥ 18 years) with incident sarcoidosis in 1946–2013 in Olmsted County, Minnesota
| 1946–1975 cohort (N=103) | 1976–2013 cohort (N=345) | Total (N=448) | p-value | |
|---|---|---|---|---|
| Age at diagnosis, years (±SD) | 35.4 (±13.6) | 45.6 (±13.6) | 44.2 (±13.8) | <0.001 |
| Female sex, n(%) | 61 (59%) | 174 (50%) | 235 (52%) | 0.12 |
| Race, n(%) | 0.13 | |||
| Caucasian | 101 (98%) | 301 (90%) | 402 (92%) | |
| African-American | 1 (1%) | 18 (5%) | 19 (4%) | |
| Asian | 0 (0%) | 6 (2%) | 6 (1.5%) | |
| Native American | 0 (0%) | 2 (1%) | 2 (0.5%) | |
| Other | 1 (1%) | 7 (2%) | 8 (2%) | |
| Unknown | 0 | 11 | 11 | |
| Length of follow-up, years (±SD) | 32.1 (±17.9) | 14.5 (±10.4) | 18.5 (±14.5) | -- |
| Smoking status at diagnosis, n(%) | ||||
| Never | 198 (60%) | -- | ||
| Ex-smoker | 71 (21%) | |||
| Current smoker | 63 (19%) | |||
| Data not available | 102 | 13 |