Table 3 Number and percentage of dogs in Iran positive for Dirofilaria immitis and Acanthocheilonema reconditum DNA (n = 344) according to their sex, age and sampling area
Variables | No. (%) | Dirofilaria immitis | Acanthocheilonema reconditum | ||||
|---|---|---|---|---|---|---|---|
| Â | Â | Number of infected dogs (%) | 95% CIa | Chi-square dfb P-value | Number of infected dogs (%) | 95% CI | Chi-square df P-value |
Sex | Â | Â | Â | Â | Â | Â | Â |
 Male | 198 (57.6) | 41 (20.07) | 15.3–27.02 | χ2 = 0.0001 df = 1 P = 0.9 | 5 (2.5) | 0.8–5.8 | χ2 = 0.074 df = 1 P = 0.06 |
 Female | 146 (42.4) | 34 (23.3) | 16.7–30.9 | 0 | 0 | ||
Age | Â | Â | Â | Â | Â | Â | Â |
 < 1 year | 62 (18.02) | 11 (17.7) | 9.2–29.5 | χ2 = 14.6 df = 2 P = 0.001* | 0 | 0 | χ2 = 7.05 df = 2 P = 0.03* |
 ≥ 1 year to < 5 years | 138 (40.1) | 47 (34.1) | 26.2–42.6 | 0 | 0 | ||
 ≥ 5 years | 144 (41.9) | 17 (11.8) | 7.0–18.2 | 5 (3.5) | 1.1–7.9 | ||
Geographical origin | Â | Â | Â | Â | Â | Â | Â |
 Esfahan | 105 (30.5) | 1 (0.95) | 0.02–5.2 | χ2 = 77.7 df = 4 P = 0.0001* | 1 (0.95) | 0.02–5.2 | χ2 = 7.6 df = 4 P = 0.1 |
 Lorestan | 101 (29.4) | 7 (6.9) | 2.8–13.8 | 0 | 0 | ||
 Mazandaran | 66 (19.2) | 33 (50) | 37.4–62.6 | 3 (4.5) | 0.95–12.7 | ||
 Qazvin | 44 (12.8) | 12 (27.3) | 14.9–42.8 | 0 | 0 | ||
 Gilan | 28 (8.1) | 22 (78.6) | 59.05–91.7 | 1 (3.6) | 0.09–18.3 | ||
 Total | 344 | 75 (21.8) | 17.5–26.5 |  | 5 (1.45) | 0.47–3.36 |  |