Table 1 Comparison of the characteristics of RCC patients between the low and high LDL-C groups
Variables | All patients (n = 737) | LDL-C ≤ 1.93 (n = 94) | LDL-C > 1.93 (n = 643) | P |
|---|---|---|---|---|
| Â | n (%) | Â | ||
Gender | Â | Â | Â | 0.002* |
Male | 476 (64.6) | 74 (78.7) | 402 (62.5) | Â |
Female | 261 (35.4) | 20 (21.3) | 241 (37.5) | Â |
Smoking history | Â | Â | Â | 0.100 |
Yes | 199 (27.0) | 32 (34.0) | 167 (26.0) | Â |
No | 538 (73.0) | 62 (66.0) | 476 (74.0) | Â |
Hypertension | Â | Â | Â | 0.208 |
Yes | 301 (40.8) | 44 (46.8) | 257 (40.0) | Â |
No | 436 (59.2) | 50 (53.2) | 386 (60.0) | Â |
Laterality | Â | Â | Â | 0.914 |
Left | 349 (47.4) | 45 (47.9) | 304 (47.3) | Â |
Right | 388 (52.6) | 49 (52.1) | 339 (52.7) | Â |
Tumor subtype | Â | Â | Â | 0.548 |
Clear | 678 (92.0) | 85 (90.4) | 593 (92.2) | Â |
Non-clear | 59 (8.0) | 9 (9.6) | 50 (7.8) | Â |
T stage | Â | Â | Â | 0.031* |
T1 | 641 (87.0) | 75 (79.8) | 566 (88.0) | Â |
T2 | 71 (9.6) | 12 (12.8) | 59 (9.2) | Â |
T3-T4 | 25 (3.4) | 7 (7.4) | 18 (2.8) | Â |
N stage | Â | Â | Â | 1.000 |
N0/Nx | 729 (98.9) | 93 (98.9) | 636 (98.9) | Â |
N+ | 8 (1.1) | 1 (1.1) | 7 (1.1) | Â |
Fuhrman grade | Â | Â | Â | 0.207 |
1 | 127 (17.2) | 10 (10.6) | 117 (18.2) | Â |
2 | 436 (59.2) | 56 (59.6) | 380 (59.1) | Â |
3 | 152 (20.6) | 24 (25.5) | 128 (19.9) | Â |
4 | 22 (3.0) | 4 (4.3) | 18 (2.8) | Â |
Type of surgery | Â | Â | Â | 0.151 |
RN | 493 (66.9) | 69 (73.4) | 424 (65.9) | Â |
PN | 244 (33.1) | 25 (26.4) | 219 (34.1) | Â |
|  | mean ± SD |  | ||
Age | 57.7 ± 10.8 | 60.2 ± 11.7 | 57.4 ± 10.7 | 0.017* |
BMI | 25.0 ± 3.4 | 24.4 ± 3.1 | 25.1 ± 3.5 | 0.045* |
Tumor size | 4.4 ± 2.3 | 4.7 ± 2.4 | 4.3 ± 2.3 | 0.120 |