Table 4.
Summary of Aedes species presence by the four study locations and breeding site characteristics.
| Study location and breeding site characteristics | Ae. aegypti | p-value | Ae. albopictus | p-value | ||
|---|---|---|---|---|---|---|
| Absent n (%) | Present n (%) | Absent n (%) | Present n (%) | |||
| Study location | ||||||
| Chitwan | 21 (61.8) | 13 (38.2) | p < 0.001** | 22 (64.7) | 12 (35.2) | p = 0.035* |
| Kathmandu | 18 (42.9) | 24 (57.1) | 38 (90.5) | 4 (9.5) | ||
| Bhaktapur | 25 (86.2) | 4 (13.8) | 22 (75.9) | 7 (24.1) | ||
| Lalitpur | 40 (100) | 0 (0) | 34 (85.0) | 6 (15.0) | ||
| Material | ||||||
| Plastic | 67 (70.5) | 28 (29.5) | p = 0.146 | 77 (81.1) | 18 (18.9) | p = 0.069 |
| Metal/tin | 14 (82.4) | 3 (17.6) | 15 (88.2) | 2 (11.8) | ||
| Rubber tyre | 7 (50.0) | 7 (50.0) | 13 (92.9) | 1 (7.1) | ||
| Other | 16 (84.2) | 3 (15.8) | 11 (57.9) | 8 (42.1) | ||
| Colour | ||||||
| Dark | 63 (67.0) | 31 (33.0) | p = 0.088 | 75 (79.8) | 19 (20.2) | p = 0.931 |
| Light | 41 (80.4) | 10 (19.6) | 41 (80.4) | 10 (19.6) | ||
| Size | ||||||
| Small | 35 (70.0) | 15 (30.0) | p = 0.648 | 34 (68.0) | 16 (32.0) | p = 0.044* |
| Medium | 41 (69.5) | 18 (30.5) | 51 (86.4) | 8 (13.6) | ||
| Large | 28 (77.8) | 8 (22.2) | 31 (86.1) | 5 (13.9) | ||
| Debris | ||||||
| < 50% | 62 (64.6) | 34 (35.4) | p = 0.008* | 78 (81.3) | 18 (18.8) | p = 0.598 |
| > 50% | 42 (85.7) | 7 (14.3) | 38 (77.6) | 11 (22.4) | ||
| Sunlight | ||||||
| < 50% | 32 (57.1) | 24 (42.9) | p = 0.002* | 44 (78.6) | 12 (21.4) | p = 0.733 |
| > 50% | 72 (80.9) | 17 (19.1) | 72 (80.9) | 17 (19.1) | ||
*Significant at the 0.05 level.
**Significant at the 0.001 level.
Fisher’s exact test was used for 2 × 2 tables and the Fisher-Freeman-Halton test for 2 × 3 tables.