Table 6. Preventive measures against dengue fever (DF).
| Variables | Highland n (%) | Lowland n (%) | Total n (%) | P-value |
| Prevent mosquito-man contact | 1* | |||
| No | 1 (1) | 2 (1) | 3 (1) | |
| Yes | 156 (99) | 296 (99) | 452 (99) | |
| Use insecticide sprays to reduce mosquitoes | 0.759 | |||
| No | 29 (19) | 60 (21) | 89 (20) | |
| Yes | 125 (81) | 232 (79) | 357 (80) | |
| Use professional pest control to reduce mosquitoes | <0.001 | |||
| No | 50 (40) | 154 (65) | 204 (56) | |
| Yes | 74 (60) | 84 (35) | 158 (44) | |
| Use screen windows to reduce mosquitoes | 0.503 | |||
| No | 33 (21) | 54 (18) | 87 (19) | |
| Yes | 122 (79) | 243 (82) | 365 (81) | |
| Eliminate standing water around the house to reduce mosquitoes | 0.175 | |||
| No | 12 (8) | 12 (4) | 24 (5) | |
| Yes | 144 (92) | 277 (96) | 421 (95) | |
| Cut down bushes in the yard to reduce mosquitoes | 0.043 | |||
| No | 15 (10) | 13 (4) | 28 (6) | |
| Yes | 139 (90) | 283 (96) | 422 (94) | |
| Prevent water stagnation | 0.077 | |||
| No | 21 (14) | 23 (8) | 44 (10) | |
| Yes | 130 (86) | 263 (92) | 393 (90) | |
| Use mosquito eating fish to reduce mosquitoes | 0.901 | |||
| No | 56 (71) | 101 (73) | 157 (72) | |
| Yes | 23 (29) | 38 (27) | 61 (28) | |
| Use mosquito coils to reduce mosquitoes | <0.001 | |||
| No | 63 (43) | 72 (25) | 135 (31) | |
| Yes | 83 (57) | 218 (75) | 301 (69) | |
| Cleaning of garbage/trash | 0.07 | |||
| No | 17 (12) | 18 (6) | 35 (8) | |
| Yes | 123 (88) | 262 (94) | 385 (92) | |
| Disposing water holding containers such as tires, parts of automobiles, plastic bottles, crack pots etc. | 0.356 | |||
| No | 10 (7) | 27 (10) | 37 (9) | |
| Yes | 144 (93) | 255 (90) | 399 (91) | |
| Use Mosquito repellent/cream | <0.001 | |||
| No | 68 (47) | 179 (64) | 247 (58) | |
| Yes | 78 (53) | 100 (36) | 178 (42) | |
| Use of fan | <0.001 | |||
| No | 99 (69) | 75 (26) | 174 (40) | |
| Yes | 44 (31) | 217 (74) | 261 (60) | |
| Use of smoke to drive away mosquitoes | 0.313 | |||
| No | 88 (58) | 183 (63) | 271 (61) | |
| Yes | 64 (42) | 106 (37) | 170 (39) | |
| Covering body with clothes | 0.2 | |||
| No | 69 (45) | 147 (51) | 216 (49) | |
| Yes | 86 (55) | 139 (49) | 225 (51) | |
| Do nothing to reduce mosquitoes | 0.305 | |||
| No | 127 (85) | 231 (81) | 358 (82) | |
| Yes | 22 (15) | 55 (19) | 77 (18) | |
| Cover water containers in the home | 0.012 | |||
| No | 13 (9) | 8 (3) | 21 (5) | |
| Yes | 139 (91) | 284 (97) | 423 (95) | |
| Frequently cleaning water filled containers and ditches around the house | 0.662* | |||
| Always | 73 (46) | 139 (46) | 212 (47) | |
| Never | 3 (2) | 2 (1) | 5 (1) | |
| Often | 44 (28) | 89 (30) | 133 (29) | |
| Sometimes | 37 (24) | 68 (23) | 105 (23) | |
| Government sprays insecticides for controlling mosquitoes | 0.253 | |||
| No | 69 (45) | 147 (51) | 216 (49) | |
| Yes | 86 (55) | 143 (49) | 229 (51) | |
| Turning containers upside down to avoid water collection | 0.768 | |||
| No | 15 (11) | 24 (9) | 39 (10) | |
| Yes | 122 (89) | 230 (91) | 352 (90) | |
All P-values are based on chi-square analysis of numbers in highland and lowland categories except those indicated by an asterisk (*) which are based on Fisher's exact test. Responses in bold font indicate correct answer.