TABLE 4.
Comparison of demographic and clinical variables in patients between training set and validation set.
| Parameter | Training set year (n = 163) | Validation set year (n = 105) | P-value |
| Age | 54.45 ± 11.68 | 52.19 ± 11.61 | 0.122 |
| Sex | 0.638 | ||
| Male | 59 (36.2%) | 41 (39.0%) | |
| Female | 104 (63.8%) | 64 (61.0%) | |
| Hypertension | 0.585 | ||
| No | 134 (82.2%) | 89 (84.8%) | |
| Yes | 29 (17.8%) | 16 (15.2%) | |
| Diabetes mellitus | 0.772 | ||
| No | 155 (95.1%) | 99 (94.3%) | |
| Yes | 8 (4.9%) | 6 (5.7%) | |
| FIB g/L | 2.97 ± 0.91 | 3.11 ± 1.16 | 0.292 |
| NLR | 2.55 ± 1.70 | 2.86 ± 1.81 | 0.167 |
| Tumor size cm | 4.93 ± 1.44 | 4.69 ± 1.41 | 0.190 |
| Tumor location | 0.613 | ||
| Non-skull base | 124 (76.1%) | 77 (73.3%) | |
| Skull base | 39 (23.9%) | 28 (26.7%) | |
| Extent of resection | 0.222 | ||
| Simpson Grade I-II | 141 (86.5%) | 85 (81.0%) | |
| Simpson Grade III-V | 22 (13.5%) | 20 (19.0%) | |
| PORT | 0.936 | ||
| No | 136 (83.4%) | 88 (83.8%) | |
| Yes | 27 (16.6%) | 17 (16.2%) | |
| FPS | 0.501 | ||
| <3 years | 45 (27.6%) | 33 (31.4%) | |
| ≥3 years | 118 (72.4%) | 72 (68.6%) | |
| F-NLR score | |||
| 0 | 81 (49.7%) | 48 (46.7%) | 0.529 |
| 1 | 58 (35.6%) | 35 (33.3%) | |
| 2 | 24 (14.7%) | 21 (20.0%) |
Values are reported as number, number(%), and mean ± standard deviation. FIB, fibrinogen; NLR, neutrophil-lymphocyte ratio; PORT, postoperative radiation therapy; PFS, progression-free survival; F-NLR, fibrinogen and neutrophil-lymphocyte ratio.