Variables | All | 5Â years | Statistical significance | ||||
---|---|---|---|---|---|---|---|
 | n | Events (all death) | No. of patients at risk | Events (all death) | Cumulative rate(%) | S.E. | |
All cases | 292 | 147 | 68 | 14 | 47.6% | 3.3% | Â |
Operation volume in each hospital (n) | |||||||
1-9 | 29 | 13 | 3 | 1 | 40.9% | 14.1% | ns; any comparison |
10-19 | 75 | 35 | 21 | 4 | 50.4% | 6.5% | Â |
20-35 | 188 | 99 | 44 | 9 | 46.9% | 4.1% | Â |
Treatment era | |||||||
Before 1999 | 144 | 86 | 56 | 8 | 49.2% | 4.4% | ns |
After 2000 | 148 | 61 | 12 | 6 | 43.4% | 5.7% | Â |
Age (years old) | |||||||
30-57 | 100 | 49 | 26 | 5 | 48.2% | 5.6% | p = 0.00561; Age 58–67 vs. Age 68-87 |
58-67 | 96 | 45 | 33 | 5 | 58.6% | 5.5% | Â |
68-87 | 96 | 53 | 9 | 4 | 34.2% | 6.1% | Â |
Performance status | |||||||
0 | 197 | 82 | 47 | 8 | 55.8% | 4.1% | p = 0.00002 |
1-4 | 60 | 41 | 10 | 4 | 25.7% | 6.4% | Â |
Operation | |||||||
Yes | 281 | 136 | 68 | 14 | 49.7% | 3.4% | p = 0.00000 |
No | 11 | 11 | 0 | 0 | Â | Â | Â |
ESR (mm/h) | |||||||
Male: 0–49, female: 0-52 | 91 | 38 | 25 | 5 | 55.4% | 6.0% | p = 0.00024 |
Male:> = 50, female:> = 56 | 92 | 60 | 12 | 4 | 29.4% | 5.7% |  |
CRP (mg/l) | |||||||
<1.3 | 129 | 47 | 33 | 5 | 61.0% | 5.0% | p = 0.00003 |
> = 1.3 | 126 | 78 | 21 | 7 | 32.9% | 4.9% |  |
α2 globulin (%) | |||||||
3.2-10.5 | 76 | 27 | 20 | 5 | 60.9% | 6.5% | p = 0.00212 |
10.6-22.3 | 76 | 44 | 15 | 3 | 38.4% | 6.6% | Â |
Ca (mg/dl) | |||||||
3.8-9.1 | 99 | 49 | 24 | 4 | 49.1% | 5.7% | ns |
9.2-14.1 | 100 | 45 | 20 | 4 | 49.7% | 5.9% | Â |
LDH (U/l) | |||||||
66-288 | 126 | 46 | 21 | 7 | 51.1% | 6.0% | p = 0.02171 |
289-1740 | 125 | 78 | 34 | 6 | 42.2% | 4.7% | Â |
Hb (g/dl) | |||||||
6.5-11.3 | 107 | 64 | 19 | 7 | 32.5% | 5.5% | p = 0.00250 |
11.4-18.5 | 103 | 45 | 27 | 2 | 57.7% | 5.5% | Â |
IAP (μg/ml) | |||||||
232-712 | 102 | 36 | 32 | 5 | 64.5% | 5.3% | p = 0.00000 |
713-2048 | 101 | 65 | 13 | 5 | 29.8% | 5.5% | Â |
T_category | |||||||
= < T3 | 275 | 134 | 68 | 13 | 49.8% | 3.4% | p = 0.00000 |
T4 | 14 | 12 | 0 | 1 | 9.5% | 8.8% | Â |
N_category | |||||||
N0 | 118 | 55 | 32 | 6 | 55.8% | 5.0% | p = 0.00000 |
N1 + N2 | 61 | 41 | 3 | 4 | 13.0% | 5.9% |  |
M_category | |||||||
M0 | 183 | 83 | 44 | 11 | 51.3% | 4.3% | p = 0.00002 |
M1 | 91 | 61 | 14 | 3 | 31.4% | 5.3% | Â |
Surgical category | |||||||
1 | 196 | 82 | 52 | 11 | 55.5% | 4.1% | p = 0.00007; surgical category 1 vs. surgical category 3 |
2 | 11 | 6 | 4 | 2 | 52.0% | 15.7% | p = 0.00022; surgical category 1 vs. surgical category 4 |
3 | 66 | 41 | 10 | 1 | 34.7% | 6.6% | p = 0.00000; surgical category 1 vs. surgical category 5 |
4 | 8 | 7 | 2 | 0 | 25.0% | 15.3% | p = 0.00342; surgical category 2 vs. surgical category 5 |
5 | 11 | 11 | 0 | 0 |  |  | p = 0.00112; surgical category 3 vs. surgical category 5 |
Tumor size (cm) | |||||||
0-8.3 | 141 | 60 | 41 | 7 | 59.6% | 4.8% | p = 0.0020 |
2:8.5-27 | 139 | 78 | 24 | 7 | 36.6% | 4.7% | Â |
Pathological subtype | |||||||
Clear cell | 206 | 90 | 55 | 11 | 54.8% | 3.9% | p = 0.02816; clear cell vs. papillary, chromophobe, others |
Papillary, chromophobe, others | 56 | 31 | 11 | 2 | 41.9% | 7.6% | p = 0.00000; clear cell vs. spindle, sarcomatoid |
Spindle, sarcomatoid | 19 | 15 | 1 | 1 | 8.3% | 7.7% | p = 0.00105; papillary, chromophobe, others vs. spindle, sarcomatoid |
Tumor nuclear grade | |||||||
G1 + G2 | 206 | 94 | 56 | 12 | 53.9% | 3.9% | p = 0.00215 |
G3 | 75 | 42 | 12 | 2 | 37.1% | 6.7% | Â |
Capsular status | Â | Â | Â | Â | Â | Â | Â |
Non-invasive | 114 | 55 | 34 | 5 | 52.5% | 5.2% | p = 0.00207; non-invasive vs. invasive |
Invasive | 43 | 30 | 6 | 2 | 28.4% | 7.6% | p = 0.02827; incvasive vs. unknown |
Unknown | 135 | 62 | 28 | 7 | 50.2% | 5.1% | Â |
RV/IVC wall invasion | |||||||
Non-invasive | 133 | 52 | 39 | 6 | 59.5% | 4.8% | p = 0.00000; non-invasive vs. invasive |
Invasive | 78 | 51 | 15 | 6 | 33.5% | 6.2% | p = 0.00107; non-invasive vs. unknown |
Unknown | 81 | 44 | 14 | 2 | 41.3% | 6.4% | Â |
Tumor thrombus classification 1 | |||||||
Renal vein, infrahepatic IVC extension | 253 | 119 | 63 | 12 | 50.9% | 3.6% | p = 0.05890 |
Suprahepatic, intracardial IVC, intracardiac extension | 31 | 22 | 4 | 2 | 28.7% | 9.4% | Â |
Tumor thrombus classification 2 | |||||||
Renal vein extension | 152 | 66 | 41 | 5 | 55.1% | 4.5% | p = 0.02410; renal vein vs. suprahepatic IVC-intracardiac |
Infrahepatic IVC extension | 101 | 53 | 22 | 7 | 44.3% | 5.9% | ns; any other comparison |
Suprahepatic, intracardial IVC, intracardiac extension | 31 | 22 | 4 | 2 | 28.7% | 9.4% | Â |
Tumor thrombus classification 3 | |||||||
Renal vein extension | 152 | 66 | 41 | 5 | 55.1% | 4.5% | p = 0.02883 |
Infrahepatic, suprahepatic, intracardial IVC, intracardiac extension | 132 | 75 | 26 | 9 | 40.6% | 5.0% | Â |