Comparison of clinical characteristics between patients with MMD and AS-MMV
| Before PSM | After PSM | |||||||
| All cases (n=1173) | MMD (n=881) | AS-MMV (n=292) | P value | All cases (n=572) | MMD (n=286) | AS-MMV (n=286) | P value | |
| Gender | ||||||||
| Male | 575 (49.0%) | 417 (47.3%) | 158 (54.1%) | 0.05 | 309 (54%) | 157 (54.9%) | 152 (53.1%) | 0.737 |
| Female | 598 (51.0%) | 464 (52.7%) | 134 (45.9%) | 263 (46%) | 129 (45.1%) | 134 (46.9%) | ||
| Age, years | 42.4±11.0 | 41.7±10.8 | 44.5±11.3 | <0.001 | 43.7±11.2 | 44.1±11.1 | 43.3±11.2 | 0.408 |
| Hypertension | 486 (41.4%) | 345 (39.2%) | 141 (48.3%) | 0.007 | 268 (46.9%) | 133 (46.5%) | 135 (47.2%) | 0.933 |
| Hyperlipidaemia | 300 (25.6%) | 187 (21.2%) | 113 (38.7%) | <0.001 | 210 (36.7%) | 103 (36.1%) | 107 (37.4%) | 0.795 |
| Diabetes | 145 (12.4%) | 91 (10.3%) | 54 (18.5%) | <0.001 | 89 (15.6%) | 41 (14.3%) | 48 (16.8%) | 0.489 |
| Smoking | 370 (31.5%) | 271 (30.8%) | 99 (33.9%) | 0.345 | 183 (32.0%) | 89 (31.1%) | 94 (32.9%) | 0.720 |
| PCA involvement | 513 (43.7%) | 385 (43.7%) | 128 (43.8%) | 1.000 | 243 (42.5%) | 118 (41.3%) | 125 (43.7%) | 0.612 |
| Bilateral involvement | 999 (85.2%) | 742 (84.2%) | 257 (88.0%) | 0.128 | 547 (95.6%) | 272 (95.1%) | 275 (96.2%) | 0.683 |
| Suzuki stage | ||||||||
| <IV | 257 (21.9%) | 191 (21.7%) | 66 (22.6%) | 0.744 | 130 (22.7%) | 65 (22.7%) | 65 (22.7%) | 1.000 |
| ≥IV | 916 (78.1%) | 690 (78.3%) | 226 (77.4%) | 442 (77.3%) | 221 (77.3%) | 221 (77.3%) | ||
| Initial clinical presentation | ||||||||
| TIA/infarction | 854 (72.8%) | 645 (73.2%) | 209 (71.6%) | 0.596 | 405 (70.8%) | 199 (69.6%) | 206 (72.0%) | 0.581 |
| Haemorrhage | 163 (13.9%) | 116 (13.2%) | 47 (16.1%) | 0.206 | 101 (17.7%) | 55 (19.2%) | 46 (16.1%) | 0.380 |
| Others | 156 (13.3%) | 120 (13.6%) | 36 (12.3%) | 0.620 | 66 (11.5%) | 32 (11.2%) | 34 (11.9%) | 0.896 |
| Operation or not | 964 (82.2%) | 735 (83.4%) | 229 (78.4%) | 0.064 | 460 (80.4%) | 237 (82.9%) | 223 (78.0%) | 0.085 |
AS-MMV, atherosclerosis-associated moyamoya vasculopathy; MMD, moyamoya disease; PCA, posterior cerebral artery; PSM, propensity score matching; TIA, transient ischaemic attack.