TABLE 6.
Comparison of clinical characteristics of primary gastric PTCL and non‐gastric PTCL patients
| Characteristic | Primary gastric PTCL, NOS (N = 104) | Non‐gastric PTCL, NOS (N = 6690) | P value |
|---|---|---|---|
| N (%) | N (%) | ||
| Age at diagnosis (years old) | 0.035 a | ||
| Mean ± SD | 65.6 ± 15.7 | 61.9 ± 17.7 | |
| Median (Range) | 68.5 (22 ~ 90) | 64 (0 ~ 100) | |
| Sex | 0.070 | ||
| Male | 71 (68.3) | 3979 (59.5) | |
| Race | <0.001 b | ||
| White | 61 (58.7) | 4958 (74.1) | |
| Black/Other | 43 (41.3) | 1651 (24.7) | |
| Unknown | 0 (0.0) | 81 (1.2) | |
| Ann Arbor stage | <0.001 b | ||
| I/II | 59 (56.7) | 2094 (31.3) | |
| III/IV | 33 (31.7) | 3515 (52.5) | |
| Unknown | 12 (11.5) | 1081 (16.2) | |
| Symptom | 0.672 b | ||
| A | 39 (37.50) | 1953 (29.2) | |
| B | 28 (26.9) | 1261 (18.8) | |
| Unknown | 37 (35.6) | 3476 (52.0) | |
| Chemotherapy | <0.001 | ||
| Yes | 58(55.8) | 5131(76.7) | |
| No/unknown | 46(44.2) | 1559(23.3) | |
| Radiotherapy | 0.085 | ||
| Yes | 8 (7.7) | 903 (13.5) | |
| No/unknown | 96 (92.3) | 5787 (86.5) | |
| Surgery | 0.005 | ||
| Yes | 17 (16.3) | 1939 (29.0) | |
| No/unknown | 87 (83.7) | 4751 (71.0) | |
| Treatment modality | <0.001 | ||
| No treatment/unknown | 37 (35.6) | 974 (14.6) | |
| Chemotherapy only | 42 (40.4) | 3169 (47.4) | |
| Surgery only | 7 (6.7) | 399 (6.0) | |
| Radiotherapy only | 2 (1.9) | 122 (1.8) | |
| Chemotherapy plus Surgery | 10 (9.6) | 1245 (18.6) | |
| Chemotherapy plus Radiotherapy | 6 (5.8) | 486 (7.3) | |
| Surgery plus Radiotherapy | 0 (0.0) | 64 (1.0) | |
| Triple treatment | 0 (0.0) | 231 (3.5) |
Abbreviation: PTCL, peripheral T‐cell lymphoma.
a
P value for Student's t‐test.
b
Excluding “unknown” patients for statistics.