Sample characteristics for surveys 1 and 2
| Survey 1 (N=109) | Survey 2 (N=127) | |
|---|---|---|
| Gender | 66% F (N=72) | 60% F (N=75) |
| Age | 56 (median), 54 (mean), range 21–88 | Not asked |
| Income category | US$25 001–US$40 000 median | US$25 001–US$40 000 median |
| Years school completed | 14.0 median, 14.1 mean, range 2–22 | 14.0 median, 13.8 mean, range 1–22 |
| Employed as vermiculite worker | 7% (N=8) | 6% (N=8) |
| Lived with employee WR Grace or Sawmill | 25% (N=27) | Not asked |
| ARD screened | 57% (N=62) | 58% (N=74) |
| ARD diagnosed | 25% (N=25) | Not asked |
| Family member ARD diagnosed (survey 2: self or family member) | 38% (N=38) | 41% (N=51) |
| Respiratory health issues | 35% (N=35) | Not asked |
| Ever smoked | 49% (N=53) | Not asked |
| Years residence Southern Lincoln Co. | 20 (median), 23.6 (mean), range 0–66 | 30 (median), 33.1 (mean), range 1–81 |
| Property cleaned by EPA | 26% (N=25) | 32% (N=38) |
| Participated in research (survey 1: in Libby/Lincoln Co.) | 48% (N=52) | 47% (N=60) |
| Participated in research outside Libby/Lincoln Co. | 76% (N=75) | Not asked |
| Race/ethnicity | Not asked | 92% White non-Hispanic (N=77) |
ARD, asbestos-related disease; EPA, Environmental Protection Agency.