Characteristic | interim PET/CT Negative, n = 115 | interim PET/CT Positive, n = 14 | Total, N = 129 N 51334 | χ2 | P | |
---|---|---|---|---|---|---|
 | 4R-CHOP+2R,n = 63 | 6R-CHOP, n = 52 |  |  |  |  |
Age, year | Â | Â | Â | Â | Â | Â |
Median (range) | 47.9 (18–74) | 53 (24–77) | 48.5 (20–70) | 50 (18–77) |  |  |
≤60y | 51 (81) | 42 (80.8) | 10 (71.4) | 103 (79.8) | 0.23 | 0.63 |
> 60y | 12 (19) | 10 (19.2) | 4 (28.6) | 26 (20.2) |  |  |
Gender | Â | Â | Â | Â | Â | Â |
Male | 36 (57.1) | 26 (50) | 10 (71.4) | 72 (55.8) | 0.92 | 0.33 |
Female | 27 (42.9) | 26 (50) | 4 (28.6) | 57 (44.2) | Â | Â |
Extranodal involvement | Â | Â | Â | Â | Â | Â |
No | 63 (100) | 1 (1.9) | 6 (42.9) | 70 (54.3) | 0.39 | 0.53 |
Yes | 0 | 51 (98.1) | 8 (57.1) | 59 (45.7) | Â | Â |
Ann Arbor Stage | Â | Â | Â | Â | Â | Â |
I | 27 (42.9) | 25 (48.1) | 4 (28.6) | 56 (43.4) | 0.81 | 0.37 |
II | 36 (57.1) | 27 (51.9) | 10 (71.4) | 73 (56.6) | Â | Â |
ECOG PS | Â | Â | Â | Â | Â | Â |
0 | 40 (63.5) | 27 (51.9) | 6 (42.9) | 73 (56.6) | 0.65 | 0.41 |
1 | 23 (36.5) | 25 (48.1) | 8 (57.1) | 56 (43.4) | Â | Â |
B symptoms | Â | Â | Â | Â | Â | Â |
No | 61 (96.8) | 46 (88.5) | 13 (92.9) | 120 (93) | 0.28 | 0.59 |
Yes | 2 (3.2) | 6 (11.5) | 1 (7.1) | 9 (7) | Â | Â |
LDH level | Â | Â | Â | Â | Â | Â |
Normal | 60 (95.2) | 51 (98.1) | 11 (78.6) | 122 (94.6) | 4.72 | 0.03* |
Elevated | 3 (4.8) | 1(1.9) | 3 (21.4) | 7 (5.4) | Â | Â |
IPI score | Â | Â | Â | Â | Â | Â |
0–1 | 61 (96.8) | 51 (98.1) | 14 (100) | 116 | 0.11 | 0.74 |
2 | 2(3.2) | 1 (1.9) | 0 (0) | 3 (2.3) | Â | Â |