Volume 20, Number 8—August 2014
Dispatch
Shelter Dogs as Sentinels for Trypanosoma cruzi Transmission across Texas
Trevor D. Tenney, Rachel Curtis-Robles, Karen F. Snowden, and Sarah A. Hamer
Table
Logistic regression model for risk for Trypanosoma cruzi seropositivity from 205 dogs across Texas, 2013
| Risk factor | No.* | No. seropositive (%) | Odds ratio | 95% CI | p value |
|---|---|---|---|---|---|
| Location (Figure label) | |||||
| El Paso (A) | 29 | 2 (6.9) | 0.69 | 0.11–4.47 | 0.69 |
| Fort Worth (B) | 30 | 2 (6.7) | 0.67 | 0.10–4.30 | 0.67 |
| Dallas (C) | 30 | 3 (10.0) | 1.04 | 0.19–5.59 | 0.97 |
| San Antonio (D) | 29 | 4 (13.8) | 1.49 | 0.30–7.33 | 0.62 |
| College Station (E) | 31 | 3 (9.7) | Referent | Referent | Referent |
| Houston (F) | 26 | 2 (7.7) | 0.78 | 0.12–5.05 | 0.79 |
| Edinburg (G) | 30 | 2 (6.7) | 0.67 | 0.10–4.30 | 0.67 |
| Sex | |||||
| F | 105 | 9 (8.6) | Referent | Referent | Referent |
| M | 96 | 9 (9.4) | 1.10 | 0.41–2.95 | 0.84 |
| Age† | |||||
| <2 y | 115 | 8 (7.0) | Referent | Referent | Referent |
| >2 y | 84 | 10 (11.9) | 1.81 | 0.68–4.94 | 0.23 |
| Breed group‡ | |||||
| Herding and working | 53 | 5 (9.4) | Referent | Referent | Referent |
| Hound, nonsporting, and toy | 43 | 4 (9.3) | 0.98 | 0.23–3.96 | 0.98 |
| Sporting | 44 | 6 (13.6) | 1.52 | 0.43–5.62 | 0.52 |
| Terrier | 56 | 1 (1.8) | 0.17 | 0.01–1.13 | 0.12 |
| Origin | |||||
| Owner surrender | 40 | 3 (7.5) | Referent | Referent | Referent |
| Stray | 137 | 10 (7.3) | 1.08 | 0.32–4.94 | 0.91 |
| Transfer from another shelter | 21 | 4 (19.0) | 2.9 | 0.58–16.13 | 0.19 |
*Sample size for some variables does not equal 205 because complete information was not available for all dogs.
†Age category was estimated on the basis of patterns of dentition and tooth wear.
‡Most dogs were mixed breed on the basis of appearance; American Kennel Club breed group assignment is based on dominant breed features.
Page created: July 18, 2014
Page updated: July 18, 2014
Page reviewed: July 18, 2014
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