Table 1.
Characterization of Human T-cell leukemia virus type-I (HTLV-1) patient groups and controls.
| Group | EDSS | Mean EDSS | Mean sympt. durat. (years) | Mean follow-up (years) | Subj | Sex | Mean age (years) |
|---|---|---|---|---|---|---|---|
| Group 1 | 0 | 0 | 0 | 11 (SD = 4.6) | 22 | 12M/10F | 50.1 (SD = 10.4) |
| Group 2 | 1–2 | 1.59 | 3.2 (SD = 3.1) | 9.2 (SD = 6.2) | 11 | 2M/9F | 47.8 (SD = 12.6) |
| Group 3 | 2.5–10 | 5.28 | 13.4 (SD = 9.8) | 9.1 (SD = 4.5) | 14 | 3M/11F | 54.1 (SD = 10.8) |
| Controls | – | – | – | – | 18 | 9M/9F | 42.0 (SD = 12.5) |
Legend: EDSS = Expanded Disability Status Scale, mean sympt. durat. = mean symptom duration, Subj = subjects, M = male, F = female, SD = Standard deviation.