| characteristics | No. of patients | % |
|---|
| Age (years) |
| Median | 65.5 | |
| IQR | 56.5–72.8 | |
| B symptoms |
| Absent | 25 | 89 |
| Present | 0 | 0 |
| Unknown | 3 | 11 |
| BMI |
| Median | 21.7 | |
| IQR | 20.0–25.6 | |
| Laterality |
| Left | 11 | 39 |
| Right | 13 | 47 |
| Bilateral | 4 | 14 |
| Tumor size (cm) |
| Median | 5.0 | |
| IQR | 4.1–7.1 | |
| Serum LDH |
| Normal | 11 | 39 |
| Elevated | 14 | 50 |
| Unknown | 3 | 11 |
| Serum β-HCG (mIU/ml) |
| Median | 0.4 | |
| IQR | 0.08–1.2 | |
| Serum AFP (IU/L) |
| Median | 2.53 | |
| IQR | 1.66–3.42 | |
| Pathology classification |
| DLBCL | 24 | 85 |
| NK/T lymphoma | 3 | 11 |
| Burkitt’s lymphoma | 1 | 4 |
| ECOG score |
| 0–1 | 12 | 43 |
| ≥ 2 | 16 | 57 |
| IPI |
| 0–1 | 8 | 29 |
| 2–3 | 16 | 57 |
| 4–5 | 4 | 14 |
| Stage |
| I | 14 | 50. |
| II | 5 | 18 |
| III | 3 | 11 |
| IV | 4 | 14 |
| Uknown | 2 | 7 |
- Table 2 Note:IQR Interquartile range, BMI Body mass index, LDH Lactate dehydrogenase, HCG Human chorionic gonadotropin, AFP Alpha fetoprotein, NK/T Natural killer/T, ECOG Eastern cooperative oncology group, IPI International prognostic index. Missing serum LDH and unknown stage were considered to be 0 points when calculating IPI.
