|  |  |  | Univariate Analysis | Multivariate Analysis | ||||
---|---|---|---|---|---|---|---|---|---|
Variable | All participants a | No positive/No tested | % | Crude OR | 95% CI | P value | Adjusted OR | 95% CI | P value |
Age group | Â | Â | Â | Â | Â | 0.649 | Â | Â | Â |
 18–24 | 33 | 4/33 | 12.1 | 1.0 | Referent |  |  |  |  |
 25–34 | 22 | 2/22 | 9.1 | 0.72 | 0.12–4.34 | 0.72 |  |  |  |
 35–44 | 42 | 6/42 | 14.3 | 1.21 | 0.31–4.69 | 0.785 |  |  |  |
 45–54 | 65 | 4/65 | 6.2 | 0.47 | 0.11–2.04 | 0.32 |  |  |  |
 55 and above | 115 | 15/115 | 13 | 1.09 | 0.33–3.53 | 0.889 |  |  |  |
Gender | Â | Â | Â | Â | Â | 0.246 | Â | Â | Â |
 Male | 116 | 16/116 | 13.8 | 1.56 | 0.74–3.29 | 0.246 |  |  |  |
 Female | 161 | 15/161 | 9.3 | 1.0 | Referent |  |  |  |  |
Ethnicity | Â | Â | Â | Â | Â | 0.019 | Â | Â | 0.467 |
 Malay | 202 | 17/202 | 8.4 | 1.0 | Referent |  | 1.0 | Referent | – |
 Chinese | 75 | 14/75 | 18.7 | 2.50 | 1.16–5.36 | 0.019 | 2.490 | 0.213–29.097 | 0.467 |
Marital status | Â | Â | Â | Â | Â | 0.892 | Â | Â | Â |
 Divorced/separated | 25 | 3/25 | 12 | 1.14 | 0.32–4.12 | 0.841 |  |  |  |
 Not married | 46 | 6/46 | 13 | 1.25 | 0.48–3.29 | 0.645 |  |  |  |
 Married | 206 | 22/206 | 10.7 | 1.0 | Referent |  |  |  |  |
Highest education | Â | Â | Â | Â | Â | 0.994 | Â | Â | Â |
 Never attended/Primary | 82 | 9/82 | 11 | 0.937 | 0.293–2.993 | 0.913 |  |  |  |
 Secondary | 152 | 17/152 | 11.2 | 0.957 | 0.332–2.763 | 0.935 |  |  |  |
 College/university | 43 | 5/43 | 11.6 | 1.0 | Referent |  |  |  |  |
Occupation | Â | Â | Â | Â | Â | 0.174 | Â | Â | 0.245 |
 Student/Homemaker | 104 | 10/104 | 9.6 | 1.04 | 0.42–2.57 | 0.924 | 0.969 | 0.386–2.433 | 0.947 |
 Unemployed | 54 | 10/54 | 18.5 | 2.23 | 0.89–5.63 | 0.089 | 2.064 | 0.785–5.425 | 0.142 |
 Employed | 119 | 11/119 | 9.2 | 1.0 | Referent |  | 1.0 | Referent | – |
Housing | Â | Â | Â | Â | Â | 0.034 | Â | Â | 0.839 |
 Single story terrace | 190 | 16/190 | 8.4 | 1.0 | Referent |  | 1.0 | Referent | – |
 Double story terrace | 87 | 15/87 | 17.2 | 2.27 | 1.06–4.82 | 0.034 | 0.8 | 0.092–6.928 | 0.839 |
Study site | Â | Â | Â | Â | Â | 0.095 | Â | Â | 0.886 |
 Kampung Jawa (rural) | 190 | 16/190 | 8.4 | 1.0 | Referent |  | 1.0 | Referent | – |
 Kampung Abdullah(urban) | 60 | 11/60 | 18.3 | 2.44 | 1.06–5.60 | 0.035 | 0.897 | 0.205–3.926 | 0.886 |
 Taman Segar(semi-urban) | 27 | 4/27 | 14.8 | 1.89 | 0.58–6.15 | 0.289 |  |  |  |
Comorbidity | Â | Â | Â | Â | Â | 0.126 | Â | Â | 0.933 |
 No | 202 | 19/202 | 9.4 | 1.0 | Referent |  | 1.0 | Referent | – |
 Yes | 75 | 12/75 | 16 | 1.83 | 0.84–3.99 | 0.126 | 0.942 | 0.233–3.806 | 0.933 |
No of medical illness | Â | Â | Â | Â | Â | 0.302 | Â | Â | Â |
 0 | 202 | 19/202 | 9.4 | 1.0 | Referent |  |  |  |  |
 1 | 48 | 8/48 | 16.7 | 1.93 | 0.79–4.71 | 0.151 |  |  |  |
 > 1 | 27 | 4/27 | 14.8 | 1.67 | 0.52–5.35 | 0.384 |  |  |  |
Hypertension | Â | Â | Â | Â | Â | 0.126 | Â | Â | 0.432 |
 No | 225 | 22/225 | 9.8 | 1.0 | Referent |  | 1.0 | Referent | – |
 Yes | 52 | 9/52 | 17.3 | 1.93 | 0.83–4.48 | 0.126 | 1.816 | 0.410–8.045 | 0.432 |
Diabetes | Â | Â | Â | Â | Â | 0.832 | Â | Â | Â |
 No | 253 | 28/253 | 11.1 | 1.0 | Referent |  |  |  |  |
 Yes | 24 | 3/24 | 12.5 | 1.15 | 0.32–4.09 | 0.832 |  |  |  |
High cholesterol | Â | Â | Â | Â | Â | 0.389 | Â | Â | Â |
 No | 260 | 28/260 | 10.8 | 1.0 | Referent |  |  |  |  |
 Yes | 17 | 3/17 | 17.6 | 1.78 | 0.48–6.56 | 0.389 |  |  |  |
Asthma | Â | Â | Â | Â | Â | 0.793 | Â | Â | Â |
 No | 270 | 30/270 | 11.1 | 1.0 | Referent |  |  |  |  |
 Yes | 7 | 1/7 | 14.3 | 1.33 | 0.15–11.45 | 0.793 |  |  |  |
Past history of dengue (personal) | Â | Â | Â | Â | Â | 0.000 | Â | Â | Â |
 No | 246 | 20/246 | 8.1 | 1.0 | Referent |  |  |  |  |
 Yes | 31 | 11/31 | 35.5 | 6.21 | 2.61–14.78 | 0.000 |  |  |  |
Family history of dengue | Â | Â | Â | Â | Â | 0.017 | Â | Â | 0.082 |
 No | 217 | 19/217 | 8.8 | 1.0 | Referent |  | 1.0 | Referent | – |
 Yes | 60 | 12/60 | 20 | 2.60 | 1.18–5.73 | 0.017 | 2.186 | 0.906–5.274 | 0.082 |
Family members with dengue infections | Â | Â | Â | Â | Â | 0.977 | Â | Â | Â |
 1 | 49 | 10/49 | 20.4 | 1.03 | 0.18–5.60 | 0.977 |  |  |  |
 > 1 | 10 | 2/10 | 20 | 1.0 | Referent |  |  |  |  |