| HEI 1. | HEI 2. |  | ||||
---|---|---|---|---|---|---|---|
 | Total | CT Pos(%) | 95% CI | Total | CT Pos(%) | 95% CI | P value* |
Age (years) | Â | Â | Â | Â | Â | Â | Â |
   18-19 | 41 | 2 (4.9%) | 0,11.47 | 109 | 3 (2.8%) | 0,5.82 | 0.61 |
   20-24 | 105 | 8 (7.6%) | 2.55,12.69 | 230 | 8 (3.5%) | 1.11,5.85 | 0.106 |
   25-29 | 21 | 0 |  | 32 | 0 |  |  |
Sex | Â | Â | Â | Â | Â | Â | Â |
   Male | 76 | 3 (3.9%) | 0,8.33 | 115 | 1 (0.9%) | 0,2.57 | 0.30 |
   Female | 82 | 7 (8.5%) | 2.49,14.59 | 254 | 10 (3.9%) | 1.55,6.33 | 0.14 |
   Unknown | 9 |  |  | 2 |  |  |  |
Total | 167 | 10 (5.9%) | 2.39,9.59 | 371 | 11 (2.9%) | 1.24,4.68 | 0.146 |