Table 2.
The clinical characteristics differences of meningiomas patients before and after PSM
| Clinical characteristics | Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|---|
| Adult 562 |
Pediatric 74 |
P value | Adult 74 |
Pediatric 74 |
P value | ASD | |
| Surgical history = Yes (%) | 89 (15.8) | 13 (17.6) | 0.831 | 8 (10.8) | 13 (17.6) | 0.346 | 0.177 |
| Gender = female (%) | 325 (57.8) | 40 (54.1) | 0.623 | 36 (48.6) | 40 (54.1) | 0.622 | 0.108 |
| Location (%) | 0.001 | 0.794 | –0.056 | ||||
| Convexity | 248 (44.1) | 29 (39.2) | 26 (35.1) | 29 (39.2) | |||
| Skull base | 171 (30.4) | 23 (31.3) | 24 (32.4) | 23 (31.3) | |||
| Parasagittal | 127 (22.6) | 6 (8.1) | 8 (10.8) | 6 (8.1) | |||
| Ventricular | 16(2.8) | 16 (21.6) | 16(21.6) | 16 (21.6) | |||
| EOR = STR (%) | 75 (13.3) | 18 (24.3) | 0.019 | 17 (23.0) | 18 (24.3) | 1.000 | 0.031 |
| RT = Yes (%) | 206 (54.8) | 13 (17.6) | < 0.001 | 9 (31.0) | 13 (17.6) | 0.218 | |
| WHO grade | < 0.001 | 0.834 | –0.071 | ||||
| Grade 1 | 209 (37.2) | 61 (82.4) | 59 (79.7) | 61(82.4) | |||
| Grade 2 | 305 (54.3) | 12 (16.2) | 14 (18.9) | 12 (16.2) | |||
| Grade 3 | 48 (8.5) | 1 (1.4) | 1 (1.4) | 1 (1.4) | |||
| Ki-67 (mean) | 5.21 (5.81) | 4.24 (3.82) | 0.163 | 5.15 (11.63) | 4.24 (3.82) | 0.526 | –0.237 |
| PR (%) | 0.584 | 0.355 | |||||
| Negative | 211 (38.2) | 26 (35.1) | 32 (44.4) | 26 (35.1) | |||
| Weak positive | 106 (19.2) | 19 (25.7) | 12 (16.7) | 19 (25.7) | |||
| Positive | 235 (42.6) | 29 (39.2) | 28 (38.9) | 29 (39.2) | |||
Statistically significant difference is given in bold
PSM, Propensity score matching; ASD, Absolute standardized difference; EOR, Extent of resection; STR, Subtotal resection; RT, Radiotherapy; PR, Progesterone receptor