Volume 9, Number 3—March 2003
Tularemia on Martha’s Vineyard: Seroprevalence and Occupational Risk
|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.
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