Table 3. Unadjusted and Adjusted Prevalence Ratio of Intensive Care Unit Care Among Patients With Ehrlichiosis.
| Variable | Prevalence ratio (95% CI) | |
|---|---|---|
| Unadjusted | Adjusted | |
| Age, y | ||
| <10 | 1.51 (0.83-2.74) | 0.84 (0.39-1.81) |
| 10-20 | 1.38 (0.83 -2.32) | 0.90 (0.50-1.61) |
| 21-30 | 1.26 (0.73-2.18) | 0.95 (0.54-1.67) |
| 31-40 | 1.13 (0.75-1.71) | 0.99 (0.65-1.51) |
| 41-50 | 1 [Reference] | 1 [Reference] |
| 51-60 | 0.95 (0.68-1.31) | 0.97 (0.70-1.34) |
| 61-70 | 1.01 (0.61-1.68) | 0.89 (0.54-1.44) |
| >70 | 1.16 (0.42 -3.18) | 0.79 (0.30 -2.13) |
| Women | 1.40 (0.84-2.32) | 1.32 (0.74-2.37) |
| Race | ||
| Non-Hispanic White | 1.49 (0.66-3.34) | 1.66 (0.81-3.41) |
| Immunosuppression | 0.47 (0.24-0.91) | 0.51 (0.26-1.00) |
| Trimethoprim plus sulfamethoxazole exposure | 1.19 (0.71-1.99) | 1.36 (0.77-2.38) |
| Reported tick exposure | 0.55 (0.33-0.90) | 0.54 (0.34-0.86) |
| Rash | 1.72 (1.02-2.89) | 1.74 (0.92-3.30) |
| Time from first contact to treatment initiation (per day) | 1.09 (1.06-1.13) | 1.09 (1.04-1.14) |