Table 1.
Baseline table with patient demographics
| Primary surgery | Repeated surgery | p-value | |
|---|---|---|---|
| Age in years; mean (SD) | 53.8 (17.5) | 48.4 (18.2) | < 0.001 |
| Sex | 0.004 | ||
| Male | 920 (47.4%) | 254 (54.9%) | |
| Female | 1020 (52.6%) | 209 (45.1%) | |
| Histopathology | < 0.001 | ||
| Meningioma | 597 (29.9%) | 85 (18.4%) | |
| Glioblastoma | 423 (21.8%) | 121 (26.2%) | |
| Adenoma | 12 (0.6%) | 8 (1.7%) | |
| Anapl. Astrocytoma | 89 (4.6%) | 48 (10.4%) | |
| Low grade glioma | 117 (6.0%) | 51 (11.0%) | |
| Metastasis | 310 (16.0%) | 47 (10.2%) | |
| Schwannoma | 109 (5.6%) | 15 (3.3%) | |
| (Epi-)dermoid | 26 (1.3%) | 7 (1.5%) | |
| Chordoma | 8 (0.4%) | 8 (1.7%) | |
| Craniopharyngioma | 22 (1.1%) | 14 (3.0%) | |
| Other | 245 (12.6%) | 58 (12.5%) | |
| Admission KPS; median (IQR) | 90 (10) | 90 (10) | 0.756* |
| Tumor size in cm; mean (SD) | 3.75 (1.8) | 3.33 (1.6) | < 0.001+ |
| Eloquent location | 0.488 | ||
| Yes | 975 (50.3%) | 241 (52.0%) | |
| No | 965 (49.7%) | 222 (48.0%) | |
| Posterior fossa location | 0.009 | ||
| Yes | 415 (21.4%) | 74 (16.0%) | |
| No | 1525 (78.6%) | 389 (84.0%) | |
| Major brain vessels manipulation | 0.790 | ||
| Yes | 712 (36.7%) | 173 (37.4%) | |
| No | 1228 (63.3%) | 290 (62.6%) | |
| Cranial nerve manipulation | 0.931 | ||
| Yes | 499 (25.7%) | 120 (25.9%) | |
| No | 1441 (74.3%) | 343 (74.1%) | |
| n = 1940 (100%) | n = 463 (100%) |
Data is presented in mean [standard deviation (SD)], median [interquartile range (IQR)] or count (percent)
*Two-sample Wilcoxon rank-sum (Mann–Whitney) test used
+Two-sample t test used