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Unadjusted and adjusted odds ratios for Balamuthia mandrillaris seropositivity among blood donors, Southern Arizona, USA, 2010
| Unadjusted OR | 95% CI | Adjusted ORa | 95% CI | |
|---|---|---|---|---|
| Yuma/Pinal County vs. Pima County | 4.8 | 1.3–16.9* | 5.2 | 1.4–19.7* |
| Male | 1.0 | 0.3–3.1 | 0.8 | 0.3–2.4 |
| Age <40 years | 0.9 | 0.3–2.7 | 0.7 | 0.2–2.5 |
| Hispanic ethnicity | 1.7 | 0.5–5.4 | 0.9 | 0.2–3.9 |
Calculated by multiple logistic regression, adjusted for other variables in the table
