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Table 2 Borrelia burgdorferi seropositivity risk factors identified through unadjusted analysis

From: Predominant risk factors for tick-borne co-infections in hunting dogs from the USA

VariableB. burgdorferi-positiveB. burgdorferi-negativeRelative risk (95% CI)P-value
Age, n (%)  0.9599 (0.5603–1.801)> 0.9999
 ≤ 6 years51 (27.87)132 (72.13)  
 > 6 years9 (29.03)22 (70.97)  
Sex, n (%)  1.177 (0.7676–1.815)0.5429
 Male33 (30.28)76 (69.72)  
 Female27 (24.71)78 (74.29)  
Region, n (%)   < 0.0001*
 East47 (78.33)57 (37.01)  
 Midwest8 (13.33)32 (20.78)  
 South3 (5.00)21 (13.64)  
 West2 (3.33)44 (28.57)  
% Exposed to Anaplasma spp.25 (37.88)41 (62.12)1.602 (1.041–2.421)0.0473*
% Exposed to Babesia spp.30 (32.26)63 (67.74)1.301 (0.8485–1.989)0.2826
% Exposed to Ehrlichia spp.8 (33.33)16 (66.67)1.218 (0.6327–2.083)0.6299
  1. *Variables significantly associated with B. burgdorferi seropositivity at P < 0.05