Demographic structure of the samples selected for testing and the results
| HHS data | n | Age median (range) | Female:male | Non-Indigenous:Indigenous | HTLV-1-positive WB | Prevalence, % (95% CI) |
| Total | 2000 | 45 (18–78) | 50:50 | 50:50 | 2 | 0.1 (0.01 to 0.36) |
| Reported by age category | Age category | |||||
| Group A | 500 | 18–25 | 50:50 | 50:50 | 0 | – |
| Group B | 500 | 26–40 | 50:50 | 50:50 | 0 | – |
| Group C | 500 | 41–55 | 50:50 | 50:50 | 1 | 0.2 (0.01 to 1.11) |
| Group D | 500 | >56 | 50:50 | 50:50 | 1 | 0.2 (0.01 to 1.11) |
Created by the authors.
2 out of 2000 HHS samples were confirmed to be HTLV-1-positive.
CI, Confidence interval; HHS, Hospital and Health Services; HTLV-1, Human T-cell leukaemia virus type 1; WB, Western blot confirmatory laboratory test.