Classification (number of dogs) | Number of positive dogs (%) | Percent agreement (%) | Cohen’s κ agreement (interpretation) | 95% CI of Cohen’s κ agreement | |
---|---|---|---|---|---|
Serum ELISA | OT ELISA | ||||
Total of dogs (407) | 149 (36.6) | 133 (32.7) | 345 (84.8) | 0.66 (substantial agreement) | 0.59–0.74 |
Sex | |||||
Female (209) | 78 (37.3) | 71 (34) | 174 (83.3) | 0.64 (substantial agreement) | 0.53–0.75 |
Male (198) | 71 (35.9) | 62 (31.3) | 171 (86.4) | 0.7 (substantial agreement) | 0.59–0.8 |
Agea | |||||
Young (79) | 17 (21.5)b | 15 (19)c | 69 (87.3) | 0.61 (substantial agreement) | 0.39–0.83 |
Adult (267) | 114 (42.7)b | 103 (38.6)c | 224 (83.9) | 0.67 (substantial agreement) | 0.58–0.76 |
Breed | |||||
Purebred (190) | 63 (33.2) | 63 (33.2) | 158 (83.2) | 0.62 (substantial agreement) | 0.5–0.74 |
Mixed breed (217) | 86 (39.6) | 70 (32.3) | 187 (86.2) | 0.7 (substantial agreement) | 0.6–0.8 |
Geographical distribution | |||||
Asturias (47) | 0 (0)d | 3 (6.4)e | 44 (93.6) | -h | -h |
Barcelona (110) | 30 (27.3)d | 23 (20.9)e | 99 (90) | 0.73 (substantial agreement) | 0.58–0.88 |
Cádiz (54) | 9 (16.7)d | 7 (13)e | 48 (88.9) | 0.56 (moderate agreement) | 0.25–0.87 |
Mallorca (94) | 33 (35.1)d | 28 (29.8)e | 74 (79.6) | 0.54 (moderate agreement) | 0.36–0.72 |
Clinical status | |||||
Sick (41) | 41 (100)f | 37 (90.2)g | 37 (90.2) | -h | -h |
Apparently healthy (366) | 108 (29.5)f | 96 (26.2)g | 308 (84.2) | 0.61 (substantial agreement) | 0.52–0.7 |
Negative control (Asturias) and positive control dogs (Sick) (88) | 41 (46.6) | 40 (45.5) | 81 (92.1) | 0.84 (almost perfect agreement) | 0.73–0.95 |
Serological status | |||||
High positive (26) | 26 (100) | 26 (100) | 26 (100) | -h | -h |
Medium positive (40) | 40 (100) | 34 (85) | 34 (85) | -h | -h |
Low positive (83) | 83 (100) | 50 (60.2) | 50 (60.2) | -h | -h |
Negative (258) | 0 (0) | 23 (8.9) | 235 (91.1) | -h | -h |
Negative control (Asturias) and high and medium positive dogs (113) | 66 (58.4) | 63 (55.8) | 104 (92) | 0.84 (almost perfect agreement) | 0.74–0.94 |