Table 4 Baseline demographic and Characteristics between initiating organization and collaborating organizations
Parameters | Total (NÂ =Â 2173) | Initiating organization cohort (NÂ =Â 527) | Collaborating organizations cohort (NÂ =Â 1646) | P value |
|---|---|---|---|---|
Age, years | 70.12 ± 14.53 | 70.08 ± 16.18 | 70.14 ± 13.95 | 0.938 |
Male | 1762 (81.1) | 405 (76.9) | 1357 (82.4) | 0.004 |
Nationalities | Â | Â | Â | 0.023 |
 Han | 2087 (96.0) | 515 (97.7) | 1572 (95.5) |  |
 Other | 86 (4.0) | 12 (2.3) | 74 (4.5) |  |
Main manifestation | ||||
 Headache | 1262 (58.1) | 298 (56.5) | 964 (58.6) | 0.413 |
 Dizziness | 877 (40.4) | 205 (38.9) | 672 (40.8) | 0.433 |
 Limbs powerless | 1121 (51.6) | 265 (50.3) | 856 (52.0) | 0.492 |
 Nausea | 110 (5.1) | 33 (6.3) | 77 (4.7) | 0.149 |
Type of treatment | ||||
 Conservation | 557 (25.6) | 299 (56.7) | 258 (15.7) | < 0.001 |
 Burr hole | 1333 (61.3) | 133 (25.2) | 1200 (72.9) | < 0.001 |
 History of trauma | 1044 (48.0) | 172 (32.6) | 872 (53.0) | < 0.001 |
 Body height | 167.62 ± 10.11 | 168.10 ± 11.25 | 167.43 ± 9.61 | 0.238 |
 Weight, median | 65.61 ± 11.32 | 67.30 ± 12.39 | 65.00 ± 10.84 | < 0.001 |
Occupation | Â | Â | Â | <Â 0.001 |
 Peasantry | 804 (37.0) | 12 (2.3) | 792 (48.1) |  |
 Worker | 143 (6.6) | 23 (4.4) | 120 (7.3) |  |
 Retiree | 536 (24.7) | 201 (38.1) | 335 (20.4) |  |
 Other | 690 (31.8) | 291 (55.2) | 399 (24.2) |  |
 Patients completed 6 months follow-up | 2117 (97.4) | 523 (99.2) | 1594 (96.8) | 0.002 |
 Admission mRS, Median [IQR] | 2 [1–3] | 3 [2–4] | 2 [1–3] | < 0.001 |
 Favorable outcome at 3 months | 1931 (88.9) | 478 (90.7) | 1453 (88.3) | 0.123 |
 Recurrence at 3 months | 52 (2.4) | 13 (2.5) | 39 (2.4) | 0.899 |