Table 2.
Bi-variate analysis of demographic factors associated with heartworm infection/ exposure (n = 122).
| Variable | Category | N | Infected (%) | p-value | OR | 95% CI |
|---|---|---|---|---|---|---|
|
| ||||||
| Sex | Male | 56 | 11 (19.6%) | rc | ||
| Female | 66 | 11 (16.7%) | 0.67 | 0.82 | 0.32–2.06 | |
| Size | Small | 5 | 1 (20%) | rc | ||
| Medium | 50 | 8 (16%) | 0.82 | 0.76 | 0.075–7.74 | |
| Large | 67 | 13 (19.4%) | 0.97 | 0.96 | 0.099–9.35 | |
| Intake | Surrender or Public Drop - Off | 16 | 3 (18.8%) | rc | ||
| Stray | 106 | 19 (17.9%) | 0.94 | 0.94 | 0.245–3.65 | |
| Jurisdiction | McAllen | 43 | 7 (16.3%) | rc | ||
| Pharr | 23 | 3 (13%) | 0.73 | 0.77 | 0.18–3.32 | |
| Edinburg | 18 | 4 (22.2%) | 0.58 | 1.47 | 0.37–5.81 | |
| San Juan | 16 | 3 (18.8%) | 0.82 | 1.19 | 0.27–5.29 | |
| Alamo | 8 | 2 (25%) | 0.56 | 1.71 | 0.29–10.3 | |
| Other* | 14 | 3 (21.4%) | 0.66 | 1.40 | 0.31–6.36 | |
| Season | Winter | 77 | 16 (20.8%) | rc | ||
| Spring | 29 | 4 (13.8%) | 0.42 | 0.61 | 0.19–2.01 | |
| Summer | 16 | 2 (12.5%) | 0.45 | 0.54 | 0.11–2.65 | |
rc = reference category.
*
Includes Alton, Palmview, Monte Alto, Elsa, Weslaco, Donna, Harlingen, and Mercedes.