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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. HamerComments to Author 
Author affiliations: Texas A&M University, College Station, Texas, USA

Main Article

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.

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