Table 4. Factors associated with consistent and recommended future use of ITCs; unadjusted associations based on observation of ITC status at 9 months, using chi-square tests.
| Total | > 50% of ITCs hanging correctlya | > 50% of ITCs hanging properly/tied upa | > 50% of ITCs washed correctlya | Would recommend ITCs b | ||
|---|---|---|---|---|---|---|
| % (n = 593) | % (n = 282) | % (n = 428) | % (n = 351) | % (n = 424) | ||
| Socio-demographic | ||||||
| ≥36 years old | 60.5 (359) | 61.4 (173) | 61.9 (265) | 59.0 (207) | 60.3 (240) | |
| Education (>11 years) | 21.3 (126) | 21.6 (61) | 22.7 (97) | 20.2 (71) | 20.6 (82) | |
| Housewife | 48.7 (289) | 51.1 (144) | 49.3 (211) | 56.1 (197) ** | 52.5 (209) | |
| Pregnant woman living in the home | 6.24 (37) | 5.3 (15) | 6.8 (29) | 6.3 (22) | 6.0 (24) | |
| Children ≤3 years at home | 20.8 (123) | 21.4 (60) | 21.8 (93) | 24.2 (85) * | 23.4 (93) | |
| Highest (>50%) SES | 47.7 (283) | 48.2 (136) | 48.1 (206) | 45.9 (161) | 46.7 (186) | |
| Knowledge of dengue | ||||||
| Knows three or more correct symptoms | 77.6 (460) | 81.2 (229)* | 79.4 (340) | 82.3 (289)** | 78.6 (313) | |
| Knows at least one correct treatment | 30.5 (181) | 33.7 (95) | 33.4 (143)* | 29.3 (103) | 29.7 (118) | |
| Knows at least 3 correct protection methods | 22.4 (133) | 20.2 (57) | 22.2 (95) | 19.9 (70) | 20.1 (80) | |
| Perception of risk | ||||||
| Knows a relative or close friend who had dengue | 19.8 (117) | 23.6 (66)* | 22.1 (94) | 21.4 (75) | 20.4 (81) | |
| Mosquito bite prevention practices | ||||||
| Children sleep under a mosquito net | 77.6 (460) | 81.6 (230)* | 78.0 (334) | 82.6 (290)** | 80.7 (321)** | |
| Reports doing at least 3 practices to protect against dengue | 35.2 (209) | 36.5 (103) | 35.1 (150) | 35.3 (124) | 34.9 (139) | |
| Perceived ITC effectiveness | ||||||
| Perceived a change in amount of mosquitoes in home (at 9 months)b | 90.2 (526) | 92.8 (257)* | 92.4 (389)** | 93.37 (324)** | - | |
| Perceived a change in amount of mosquitoes in home (at 27 months)b | 90.6 (384) | - | - | - | 93.5 (372) ** | |
*p<0.05
**p<0.01.
a Reference groups are: for column 2, ≤50% of ITCs not hanging properly (including those observed to be tied up); for column 3, ≤50% of ITCs not hanging in place; for column 4, ≤50% of ITCs not washed correctly (either bleach was used or hung in direct sunlight); and for column 5, would not recommend ITCs.
b “Perceived a change in amount of mosquitoes” and “Would recommend ITCs” were measured at the end of the study (27 months after ITC distribution) compared to the others which were measured at 9 months after ITC distribution. The n for these variables is lower (n = 583 at 9 months and n = 424 at 27 months) due to participants moving out of the study area or not being home at final survey time.