Table 5 Statistical analysis of specific risk factors for oxyuridosis from data obtained by pet owners
Factor | Sample size | No. of negative (%) | No. of oxyurid-positive (%) | Chi-squarea | P-value (two-sided) |
|---|---|---|---|---|---|
Sender | 991 | Â | Â | 16.28 | < 0.001b |
 Private | 798 | 426 (53.4) | 372 (46.6) |  |  |
 Veterinary doctor | 193 | 134 (69.4) | 59 (30.6) |  |  |
Tortoise species | 452 | Â | Â | 2.97 | 0.086 |
 T. hermanni | 402 | 222 (55.2) | 180 (44.8) |  |  |
 T. graeca | 50 | 34 (68.0) | 16 (32.0) |  |  |
Tortoise sex | 725 | Â | Â | 1.43 | 0.231 |
 Male | 253 | 150 (59.3) | 103 (40.7) |  |  |
 Female | 472 | 258 (66.7) | 214 (45.3) |  |  |
Tortoise age | 644 | Â | Â | 11.73 | < 0.001b |
 Juvenile; < 5a | 294 | 141 (48.0) | 153 (52.0) |  |  |
 Adult; > 5a | 350 | 215 (61.4) | 135 (38.6) |  |  |
Group size | 765 | Â | Â | 0.99 | 0.321 |
 Group facility | 648 | 350 (54.0) | 298 (46.0) |  |  |
 Single enclosure | 117 | 69 (60.5) | 48 (41.0) |  |  |
Keeping conditions | 111 | Â | Â | 0.32 | 0.571 |
 Free- range | 94 | 62 (66.0) / | 32 (34.0) |  |  |
 Terrarium | 11 | 10 (58.8) | 7 (41.2) |  |  |
Sampling season | Â | Â | Â | 10.968 | < 0.001b |
 October-March | 318 | 205 (64.5) | 113 (35.5) |  |  |
 April-September | 688 | 367 (53.3) | 321 (46.7) |  |  |