Table 2.
Attack Rates and Relative Risks for Coccidioidomycosis, Pleasant Valley State Prison, California, 2005.
Characteristic | Population at Risk | Number Ill | Attack Rate (Per 1,000) | RR [95% CI] | p |
---|---|---|---|---|---|
Total | 4,885 | 160 | |||
Age (years) | |||||
≤40 | 3,036 | 82 | 27 | Reference | |
≥41a | 1,849 | 78 | 42 | 1.6 [1.2, 2.1] | .003 |
Race/ethnicity | |||||
White | 1,453 | 39 | 27 | Reference | |
Hispanic | 2,039 | 58 | 28 | 1.1 [0.7, 1.6] | .8 |
Blacka | 1,047 | 55 | 53 | 2.0 [1.3, 2.9] | .0009 |
Other | 346 | 8 | 23 | 0.9 [0.4, 1.8] | .7 |
Residence yardb | |||||
A | 1,069 | 25 | 23 | 0.7 [0.4, 1.0] | .05 |
B | 1,118 | 17 | 15 | 0.4 [0.2, 0.7] | .0002 |
Ca | 1,115 | 71 | 64 | 2.7 [2.0, 3.7] | <.0001 |
D | 1,126 | 39 | 35 | 1.1 [0.8, 1.5] | .7 |
Note. CI = confidence interval; RR = risk ratio.
Variables remained statistically significant in multivariate model.
Reference group for residence yard was residence on all other housing areas.