Table 6.
Seropositivity for CVBD agents according to the epidemiological variables analysed
| Epidemiological variable (n) | Total population seropositivity (%) | |||||
|---|---|---|---|---|---|---|
| Dogs infected (%) | A | Bb | Di | Ec | Dogs co-infected (%) | |
| Gender | P = 0.205 | P = 0.871 | P = 0.886 | P = 0.772 | P = 0.291 | P = 0.565 |
| Male (901) | 343 (38.07) | 89 (9.88) | 2 (0.22) | 49 (5.44) | 288 (31.96) | 77 (8.55) |
| Female (781) | 274 (35.08) | 79 (10.11) | 2 (0.26) | 40 (5.12) | 231 (29.58) | 73 (9.35) |
| Age | P = 0.011 | P = 0.958 | P = 0.647 | P = 0.096 | P = 0.014 | P = 0.379 |
| < 1 year (82) | 19 (23.17) | 8 (9.76) | 0 (0) | 1 (1.22) | 15 (18.29) | 5 (6.09) |
| ≥ 1 year (1570) | 581 (37.01) | 156 (9.94) | 4 (0.25) | 85 (5.41) | 489 (31.14) | 140 (8.92) |
| Size | P < 0.0001 | P = 0.606 | P = 0.542 | P = 0.001 | P = 0.047 | P < 0.0001 |
| Small (631) | 174 (27.58) | 44 (6.97) | 0 (0) | 13 (2.06) | 146 (23.14) | 27 (4.28) |
| Medium (226) | 98 (43.36) | 25 (11.06) | 1 (0.44) | 17 (7.52) | 80 (35.39) | 23 (10.18) |
| Large (522) | 208 (39.85) | 55 (10.54) | 2 (0.38) | 36 (6.89) | 172 (32.95) | 51 (9.77) |
| Lifestyle | P < 0.0001 | P = 0.001 | P = 0.214 | P < 0.0001 | P < 0.0001 | P < 0.0001 |
| Indoors (447) | 106 (23.71) | 27 (6.04) | 0 (0) | 8 (1.79) | 88 (19.69) | 17 (3.80) |
| Outdoors (1159) | 487 (42.02) | 133 (11.47) | 4 (0.34) | 81 (6.99) | 407 (35.12) | 125 (10.78) |
| Tick contact | P < 0.0001 | P < 0.0001 | P = 0.297 | P = 0.002 | P < 0.0001 | P < 0.0001 |
| Yes (1258) | 545 (43.32) | 156 (12.40) | 4 (0.32) | 80 (6.36) | 458 (36.40) | 141 (11.21) |
| No (341) | 33 (9.68) | 4 (1.17) | 0 (0.00) | 7 (2.05) | 25 (7.33) | 3 (0.88) |
| TTI prevention | P < 0.0001 | P = 0.188 | P = 0.069 | P = 0.429 | P < 0.0001 | P = 0.033 |
| Yes (85) | 50 (58.82) | 12 (14.12) | 1 (1.18) | 3 (3.53) | 49 (57.65) | 13 (15.29) |
| No (1593) | 567 (35.59) | 155 (9.73) | 3 (0.19) | 88 (5.52) | 468 (29.38) | 136 (8.54) |
| MTI prevention | P = 0.180 | P = 0.354 | P = 0.070 | P = 0.484 | P = 0.243 | P = 0.085 |
| Yes (85) | 37 (43.53) | 11 (12.94) | 1 (1.18) | 6 (7.06) | 31 (36.47) | 12 (14.12) |
| No (1585) | 576 (36.34) | 156 (9.84) | 3 (0.19) | 84 (5.29) | 483 (30.47) | 137 (8.64) |
| Clinical signs | P < 0.0001 | P < 0.0001 | P = 0.022 | P < 0.0001 | P < 0.0001 | P < 0.0001 |
| Yes (722) | 384 (53.18) | 106 (14.68) | 4 (0.55) | 57 (7.89) | 333 (46.12) | 108 (14.96) |
| No (943) | 227 (24.07) | 58 (6.15) | 0 (0) | 31 (3.29) | 182 (19.3) | 39 (4.13) |
| Travel history | P = 0.631 | P = 0.680 | P = 0.124 | P = 0.453 | P = 0.572 | P = 0.742 |
| Yes (331) | 118 (35.65) | 35 (10.57) | 2 (0.60) | 15 (4.53) | 98 (29.61) | 31 (9.36) |
| No (1365) | 506 (37.07) | 134 (9.82) | 2 (0.15) | 76 (5.57) | 426 (31.21) | 120 (8.79) |
Abbreviations: A Anaplasma spp., Bb B. burgdorferi (sensu lato), Di D. immitis, Ec E. canis, TTI tick-transmitted infections; MTI mosquito-transmitted infections