TABLE 3.
Risk factors for B. henselae bacteremia or seropositivity: multivariate analysisa
| Risk factor | No. of samples tested | Bacteremia
|
No. of samples tested | Seropositivity
|
||
|---|---|---|---|---|---|---|
| OR | 95% CL | OR | 95% CL | |||
| Age (mo) | ||||||
| 0-6 | 150 | 1.00 | 156 | 1.00 | ||
| 7-12 | 73 | 0.54 | 0.24, 1.26 | 73 | 1.58 | 0.73, 3.42 |
| 13+ | 41 | 0.18 | 0.05, 0.61 | 42 | 0.90 | 0.32, 2.51 |
| Gender | ||||||
| Male | 133 | 1.00 | 133 | 1.00 | ||
| Female | 128 | 1.41 | 0.69, 2.88 | 128 | 1.42 | 0.73, 2.75 |
| Neutering status | ||||||
| Neutered | 161 | 1.00 | 165 | 1.00 | ||
| Intact | 100 | 0.47 | 0.22, 1.02 | 103 | 0.70 | 0.35, 1.39 |
| Source | ||||||
| Friend, self, or breeder | 96 | 1.00 | 98 | 1.00 | ||
| Stray or shelter | 105 | 2.00 | 0.94, 4.22 | 110 | 2.02 | 1.03, 3.99 |
| Store or newspaper | 37 | 2.08 | 0.62, 6.99 | 37 | 1.03 | 0.35, 3.07 |
| Fleas | ||||||
| Never | 98 | 1.00 | 99 | 1.00 | ||
| Ever | 162 | 2.82 | 1.10, 7.27 | 168 | 1.74 | 0.83, 3.64 |
| Region | ||||||
| Washington, D.C. | 29 | 1.00 | 32 | 1.00 | ||
| Chicago | 47 | 0.84 | 0.21, 6.05 | 48 | 0.57 | 0.14, 2.35 |
| Florida | 93 | 2.11 | 0.52, 8.58 | 94 | 4.21 | 1.41, 12.51 |
| California | 95 | 3.20 | 0.77, 13.32 | 97 | 4.26 | 1.38, 13.15 |
| Hunting | ||||||
| No | 198 | 1.00 | 205 | 1.00 | ||
| Yes | 21 | 3.00 | 0.77, 13.32 | 21 | 5.71 | 1.12, 29.01 |
a
Variables selected for this model were significant at P < 0.10 in a univariate analysis. Data are missing for 52 cats. Cats with contaminated cultures were not included in the analysis. OR, odds ratio; 95% CL, 95% confidence limits.