Table 1. Clinical characteristics of ENKTL patients.
| Characteristic | Patients (n = 211) | |
|---|---|---|
| N | % | |
| Age, years Median (Range) | 42 (11–85) | |
| ≤ 45 | 132 | 62.6 |
| > 45 | 79 | 37.4 |
| Gender | ||
| Male | 151 | 71.6 |
| Female | 60 | 28.4 |
| B symptoms | ||
| Yes | 102 | 48.3 |
| No | 109 | 51.7 |
| Ann Arbor Stage | ||
| IE | 159 | 75.4 |
| Limited | 65 | |
| Paranasal extension | 94 | |
| IIE | 52 | 24.6 |
| Limited | 0 | |
| Paranasal extension | 52 | |
| ECOG | ||
| 0–1 | 203 | 96.2 |
| > 1 | 8 | 3.8 |
| Paranasal extension | ||
| Yes | 146 | 69.1 |
| No | 65 | 30.8 |
| Lymph Node Infiltration | ||
| Yes | 45 | 21.3 |
| No | 166 | 78.7 |
| LDH Elevated | ||
| Yes | 56 | 26.5 |
| No | 147 | 69.7 |
| Missing | 8 | 3.8 |
| IPI | ||
| 0 | 134 | 63.5 |
| 1 | 61 | 28.9 |
| 2 | 13 | 6.2 |
| 3 | 3 | 1.4 |
| KPI | ||
| 1 | 83 | 39.3 |
| 2 | 69 | 32.7 |
| 3 | 44 | 20.9 |
| 4 | 15 | 7.1 |
| Treatment modality | ||
| Chemoradiotherapy | 114 | 54 |
| Radiotherapy | 97 | 46 |
| Recurrence | ||
| Yes | 56 | 26.5 |
| No | 155 | 73.5 |
| Survival | ||
| Yes | 174 | 82.5 |
| No | 37 | 17.5 |
ENKL = extranodal natural killer/T-cell lymphoma, ECOG = Eastern Cooperative Oncology Group, LDH = lactate dehydrogenase, IPI = International Prognostic Index, KPI = Korean Prognostic Index.