Baseline characteristics of atherosclerotic-related occlusion before and after matchinga
| Before Matching | P | After Matching | P | |||
|---|---|---|---|---|---|---|
| ST 6 (n = 95) | ST 4 (n = 171) | ST 6 (n = 66) | ST 4 (n = 66) | |||
| Age (mean) (SD) (yr) | 65 (11) | 63 (13) | .086 | 64 (11.4) | 62 (11.7) | .249 |
| Women (No.) (%) | 28 (29.5%) | 47 (27.5%) | .730 | 16 (24.2%) | 16 (24.2%) | 1.000 |
| Hypertension (No.) (%) | 65 (68.4%) | 115 (67.3%) | .845 | 48 (72.7%) | 42 (63.6%) | .307 |
| Diabetes mellitus (No.) (%) | 21 (22.1%) | 30 (17.5%) | .365 | 16 (24.2%) | 7 (10.6%) | .078 |
| Current smoker (No.) (%) | 34 (35.8%) | 56 (32.7%) | .615 | 25 (37.9%) | 25 (37.9%) | 1.000 |
| SBP (median) (IQR) (mm Hg) | 148 (135–163) | 147 (130–160) | .351 | 148 (135–162) | 140 (129–160) | .268 |
| GLU (median) (IQR) (mmol/L) | 6.54 (5.46–9.00) | 6.70 (5.68–8.32) | .812 | 6.41 (5.2–8.95) | 6.62 (5.7–8.34) | .538 |
| ASPECTS (median) (IQR) | 9 (7–10) | 9 (8–10) | .012 | 9 (8–10) | 10 (8–10) | .233 |
| NIHSS (median) (IQR) | 16 (12–20) | 16 (11–19) | .154 | 16 (12–19) | 16 (11–19) | .873 |
| IV (No.) (%) | 30 (31.6%) | 61 (35.7%) | .500 | 25 (37.9%) | 24 (36.4%) | 1.000 |
| Time from onset to visit (median) (IQR) (min) | 153 (90–232) | 120 (60–216) | .032 | 152 (90–220) | 122 (49–242) | .450 |
| Time from onset to treatment (median) (IQR) (min) | 293 (225–364) | 280 (210–356) | .352 | 289 (224–351) | 275 (206–355) | .532 |
| Artery occlusion site | ||||||
| ICA (No.) (%) | 55 (57.9%) | 33 (19.3%) | <.001 | 32 (48.5%) | 29 (43.9%) | .375 |
| MCA (No.) (%) | 39 (41.1%) | 136 (79.5%) | <.001 | 33 (50%) | 36 (54.5%) | .375 |
| ACA (No.) (%) | 1 (1.1%) | 2 (1.2%) | .931 | 1 (1.5%) | 1 (1.5%) | 1.000 |
| Collateral flow grade (ASITN/SIR) | .023 | 1.000 | ||||
| 0–1 (No.) (%) | 50 (52.6%) | 65 (38.2%) | 32 (48.5%) | 31 (47%) | ||
| 2–3 (No.) (%) | 45 (47.4%) | 105 (61.8%) | 99 (51.5%) | 214 (53%) | ||
Note:—ASITN/SIR indicates American Society of Interventional and Therapeutic Neuroradiology, Society of Interventional Radiology; GLU, glucose; ACA, anterior cerebral artery; SBP, systolic blood pressure.
↵a The logistic regression model used for the determination of the propensity score included the following factors: age, time from onset symptom to visit, time from onset to groin puncture, NIHSS score, ASPECTS, site of vessel occlusion, and collateral blood flow.