Table 4. Distribution of patients within risk groups and OS by determined by IPI, KPI and PIT.
| Prognostic model | No. of patients (%) | 5-year OS (%) | P-value |
|---|---|---|---|
| IPI scorea | |||
| 0–1 | 94 (73.4) | 46.8 | 0.003 |
| 2–5 | 34 (26.6) | 17.6 | |
| PIT scorea | |||
| 0–1 | 110 (85.9) | 43.6 | 0.009 |
| 2–4 | 18 (14.1) | 11.1 | |
| KPI scorea | |||
| 0–1 | 66 (51.6) | 63.6 | < 0.001 |
| 2–4 | 62 (48.4) | 12.9 |
Abbreviations: OS=overall survival; IPI=International Prognostic Index; KPI=Korean Prognostic Index; PIT=Prognostic Index for Peripheral T-cell lymphoma, unspecified.
Differences between survival curves were tested using the log-rank test. P<0.05 was considered statistically significant.
a
Complete information on IPI score, PIT score and KPI score was available in 128 cases.