Research Article
Risk Factors for Chikungunya Virus Outbreak in Somali Region of Ethiopia, 2019: Unmatched Case-Control Study
Table 5
Multivariable analysis of chikungunya risk factors in Kebridahar City Administration of Somali, Ethiopia, 2019.
| | Variables and categories | Cases (%) | Controls (%) | COR (95% CI) | AOR (95% CI) | value |
| | Sex | | Female | 33 (44.6) | 95 (64.2) | 1 | 1 | 0.331 | | Male | 41 (55.4) | 53 (35.8) | 1.8 (1.1–3.2) | 1.8 (0.6–6.1) |
| | Knowing symptoms and preventions of chikungunya | | Yes | 13 (17.6) | 71 (48.0) | 1 | 1 | 0.075 | | No | 61 (82.4) | 77 (52.0) | 4.3 (2.2–8.5) | 3.3 (0.9–12.0) |
| | Knowing that Aedes mosquito bites commonly at daytime | | Yes | 21 (28.4) | 65 (43.9) | 1 | 1 | 0.189 | | No | 53 (71.6) | 83 (56.1) | 1.9 (1.1–3.6) | 2.2 (0.7–7.0) |
| | Using bed net at daytime sleeping | | Yes | 12 (16.2) | 130 (87.8) | 1 | 1 | <0.001 | | No | 62 (83.8) | 18 (12.2) | 37.3 (16.9–82.3) | 20.8 (6.4–66.7) |
| | Status of water holding container | | Closed | 23 (31.1) | 123 (83.1) | 1 | 1 | 0.023 | | Open | 51 (68.9) | 25 (16.9) | 10.9 (5.7–20.9) | 4.0 (1.2–13.5) |
| | Presence of larvae in water holding container | | Yes | 50 (67.6) | 21 (14.2) | 12.6 (6.4–24.6) | 4.8 (1.4–16.8) | 0.015 | | No | 24 (32.4) | 127 (85.8) | 1 | 1 |
| | Ill person with chikungunya in the house hold and neighbors | | Yes | 47 (63.5) | 15 (10.1) | 21.7 (9.3–50.7) | 27.9 (6.5–120.4) | <0.001 | | No | 27 (36.5) | 133 (89.8) | 1 | 1 |
| | Kind of clothes they wear commonly since the emergence of this outbreak | | Full body cover | 22 (29.7) | 115 (77.7) | 1 | 1 | 0.002 | | Short | 52 (70.3) | 33 (22.3) | 8.2 (4.4–15.5) | 8.1 (2.2–30.1) |
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COR, crude odds ratio; AOR, adjusted odds ratio; CI, confidence interval. value less than 0.05. |
