Table 2.
—BWHS Characteristics According to Sarcoidosis Status
| Characteristic | Incident Sarcoidosis, % (n = 435) | Prevalent Sarcoidosis, % (n = 685) | P Value |
| Education, y (1995) | .1757 | ||
| ≤ 12 | 20 | 18 | |
| 13-15 | 38 | 35 | |
| ≥ 16 | 42 | 47 | |
| Geographic region (1995) | .6589 | ||
| Northeast | 28 | 26 | |
| South | 31 | 32 | |
| Midwest | 28 | 27 | |
| West | 13 | 16 | |
| Occupation (1995) | .0302 | ||
| White collar | 54 | 61 | |
| Non-white collar | 42 | 34 | |
| Not employed/other | 2 | 3 | |
| Missing/unknown | 2 | 2 | |
| Where lived up to age 18 (1997) | .8680 | ||
| Urban setting | 42 | 40 | |
| Suburban setting | 13 | 15 | |
| Rural or small town | 19 | 21 | |
| Combination of settings | 14 | 14 | |
| Missing | 12 | 11 |
See Table 1 legend for expansion of abbreviation.