Table 1.
Characteristics of patients and tumours (n = 194)
| Characteristic | Training Set (n = 97) |
Test Set (n = 97) |
Whole Set (n = 194) | p-value |
|---|---|---|---|---|
| Age (yr, mean ± std) | 47.82 ± 12.46 | 46.22 ± 12.37 | 47.02 ± 12.41 | 0.559 |
| Gender (No.) | 0.727 | |||
| Male | 46 (47.42%) | 50 (51.55%) | 96 (49.48%) | |
| Female | 51 (52.58%) | 47 (48.45%) | 98 (50.52%) | |
| Tumour Volume (cm3, mean ± std) | 14.03 ± 16.87 | 11.59 ± 8.76 | 12.81 ± 13.46 | 0.378 |
| Knosp Grade (No.) | 0.213 | |||
| Grade 2 | 37 (38.14%) | 52 (53.61%) | 89 (45.88%) | |
| Grade 3 | 60 (61.86%) | 45 (46.39%) | 105 (54.12%) | |
| Haemorrhage (No.) | 0.830 | |||
| Yes | 12 (12.37%) | 13 (13.40%) | 25 (12.89%) | |
| No | 85 (87.63%) | 84 (86.60%) | 169 (87.11 %) | |
| Tumour Diameter (cm, mean ± std) | 3.27 ± 0.97 | 3.01 ± 0.83 | 3.14 ± 0.91 | 0.213 |
| Suprasellar Invasion (No.) | 0.378 | |||
| Yes | 64 (65.98%) | 55 (56.70%) | 119 (61.34%) | |
| No | 33 (34.02%) | 42 (43.30%) | 75 (38.66%) | |
| Periarterial Enhancement (No.) | 0.830 | |||
| Yes | 43 (44.33%) | 45 (46.39%) | 88 (45.36%) | |
| No | 54 (55.67%) | 52 (53.61%) | 106 (54.64%) | |
| ICV obliteration (No.) | 0.378 | |||
| Yes | 30 (30.93%) | 21 (21.65%) | 51 (26.29%) | |
| No | 67 (69.07%) | 76 (78.35%) | 143 (73.71%) |
P-values were corrected for multiple testing by controlling the false discovery rate of 5%
yr year, std standard deviation, ICV inferolateral venous compartment