Table 2.
Patient characteristics including comparison of patients with and without complications.
| Characteristics | All biopsies (%) | Without complications (%) | With complication grades 1A-4 (%) | P value |
|---|---|---|---|---|
| Total | 198 | 180 (90.9%) | 18 (9.1%) | |
| Number male:female | 122:76 | 109:71 | 13:5 | 0.45 |
| Mean age at biopsy (years) | 58.7 (±14.4) | 58.5 (±14.6) | 60.5 (±13.2) | 0.58 |
| Type of surgery | ||||
| Stereotactic biopsy | 156 (78.8%) | 144 (80.0%) | 12 (66.7% of total complications) | 0.22 |
| Neuronavigation guided mini craniotomy biopsy | 42 (21.2%) | 36 (20.0%) | 6 (33.3% of total complications) | 0.22 |
| Radiological appearances | ||||
| Supratentorial | 192 (98%) | 174 (97.8%) | 18 (100%) | 1.00 |
| Superficial (<2 cm from cortical surface) | 129 (65.8%) | 118 (66.3%) | 11 (61.1%) | 0.79 |
| Size <1 cm3 | 5 (2.6%) | 5 (2.8%) | 0 (0%) | 1.00 |
| Size >1 cm3 | 191 (97.4%) | 173 (97.2%) | 18 (100%) | 1.00 |
| Contrast enhancing | 173 (88.3%) | 155 (87.1%) | 18 (100%) | 0.14 |
| Unifocal | 137 (69.9%) | 126 (70.8%) | 11 (61.1%) | 0.43 |
| Perifocal oedema | 87 (44.4%) | 80 (44.9%) | 7 (38.9%) | 0.80 |