Table 5.
Summary of the prognosis of adult T‐cell leukemia/lymphoma (ATL) in literature and the present study
| Shimoyama report | Katsuya report | The present study | |
|---|---|---|---|
| Year of published (reference No.) | 1991 14 | 2015 23 | 2019 |
| Total | |||
| Year of diagnosis | 1983‐1987 | 2000‐2009 | 2010‐2011 |
| Year of the last follow‐up | 1990 | NA | 2016 |
| No. evaluated | 818 | 1594 | 770 |
| Age at diagnosis, median or mean (ranges), y | 57.1 (24‐92) | 61‐63 (NA) | 68 (34‐94) |
| No. dead (% of evaluated) | 565 (69.1) | 1128 (70.8) | 527 (68.4) |
| Acute | |||
| No. evaluated | 465 | 895 | 391 |
| MST, mo | 6.2 | 8.3 | 8.3 |
| 4‐y survival rate (%) | 5.0 | 11.4 | 16.8 |
| Lymphoma | |||
| No. evaluated | 156 | 355 | 192 |
| MST, mo | 10.2 | 10.6 | 10.0 |
| 4‐y survival rate (%) | 5.7 | 16.2 | 19.6 |
| Chronic, all | |||
| No. evaluated | 152 | 187 | 106 |
| MST, mo | 24.3 | 31.5 | 25.5 |
| 4‐y survival rate (%) | 26.9 | 35.6 | 37.4 |
| Unfavorable chronic | |||
| No. evaluated | NA | 15 | 71 |
| MST, mo | NA | NR | 18.8 |
| 4‐y survival rate (%) | NA | 29.0 | 26.6 |
| Favorable chronic | |||
| No. evaluated | NA | 172 | 33 |
| MST, mo | NA | NR | 63.5 |
| 4‐y survival rate (%) | NA | 60.0 | 62.1 |
| Smoldering | |||
| No. evaluated | 45 | 157 | 81 |
| MST, mo | NR | 55.0 | 60.7 |
| 4‐y survival rate (%) | 62.8 | 51.9 | 59.8 |
Abbreviations: MST, median survival time; NA, not available; NR, not reached.