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. 2013 Dec;51(12):4112–4119. doi: 10.1128/JCM.02312-13

Table 2.

Kennel population serological survey analysis: seroconversion and seroconversion subcategory by measured variable

Variable Seroconversion in dogs
ORc 95% CI (OR) P valuea Total dogs
Yes
No
No. % No. % No. %
Maximum respiratory score
    1 13 39.4 20 60.6 Ref <0.001b 33 100
    2 22 53.7 19 46.3 1.8 0.7–4.5 0.2 41 100
    3 103 77.4 30 22.6 5.3 2.4–11.8 <0.001 133 100
    4 7 87.5 1 12.5 10.8 1.2–98.0 0.04 8 100
Disease
    Yes 132 72.5 50 27.5 4.1 1.9–8.8 <0.001 182 100
    No 13 39.4 20 60.6 Ref <0.001b 33 100
Severe disease
    Yes 110 78.0 31 22.0 4.0 2.2–7.2 <0.001 141 100
    No 35 47.3 39 52.7 Ref <0.001b 74 100
Age (yrs)
    ≤1 53 84.1 10 15.9 Ref 0.001b 63 100
    2 75 64.7 41 35.3 0.3 0.2–0.7 0.007 116 100
    ≥3 17 47.2 19 52.8 0.1 0.06–0.4 <0.001 36 100
Entry status
    Gift 44 64.7 24 35.3 Ref 0.6b 68 100
    Stray 101 68.7 46 31.3 1.2 0.6–2.2 0.6 147 100
Season
    Winter 26 66.7 13 33.3 Ref 0.6 39 100
    Spring 44 62.0 27 38.0 0.8 0.4–1.8 0.6 71 100
    Summer 37 74.0 13 26.0 1.4 0.6–3.6 0.4 50 100
    Autumn 38 69.1 17 30.9 1.1 0.5–2.7 0.8 55 100
a

Wald P values are from logistic regression except when otherwise noted.

b

Chi-square P value.

c

Ref, the reference against which the OR was calculated.