Volume 9, Number 3—March 2003
Research
Tularemia on Martha’s Vineyard: Seroprevalence and Occupational Risk
Katherine A. Feldman*
, Donna Stiles-Enos†, Kathleen Julian*, Bela T. Matyas‡, Sam R. Telford§, May C. Chu*, Lyle R. Petersen*, and Edward B. Hayes*
, Donna Stiles-Enos†, Kathleen Julian*, Bela T. Matyas‡, Sam R. Telford§, May C. Chu*, Lyle R. Petersen*, and Edward B. Hayes*Table 1
Relative seropositivity of Martha’s Vineyard landscapers compared with three control groups, Martha’s Vineyard, 2001a
| Population | Seropositive landscapers/total no. (%) | Seropositive controls/total no. (%) | Seroprevalence ratio (95% CI) | Yates corrected p value |
|---|---|---|---|---|
| 1) Landscapers vs. physicians’ office patients and members of civic organizations | 12/132 (9.1) | 0/103 (0) | Undef (undef, undef) | 0.004 |
| 2) Landscapers vs. residents (July) | 1/99 (1) | 9.0 (1.2 to 68.1) | 0.02 | |
| 3) Landscapers vs. residents (October) | 0/108 (0) | Undef (undef, undef) | 0.004 |
aCI, confidence interval; undef, undefined.
