Table 2 Characteristics at baseline after PSM: sample of dizziness or vertigo
Variable | Gastrodin injection (N = 329) | Extract of Ginkgo Biloba Leaves injection (N = 329) | P | SMD |
|---|---|---|---|---|
Region, (n, %) | Â | Â | 0.79 | 0.080 |
 Eastern | 193 (58.7) | 195 (59.3) |  |  |
 Central | 55 (16.7) | 56 (17.0) |  |  |
 Western | 80 (24.3) | 78 (23.7) |  |  |
 Northeast | 1 (0.3) | 0 (0.0) |  |  |
Hospital level, (n, %) |  |  | 1 |  < 0.001 |
 Tertiary | 320 (97.3) | 320 (97.3) |  |  |
 Secondary | 7 (2.1) | 7 (2.1) |  |  |
 Primary | 2 (0.6) | 2 (0.6) |  |  |
Hospital department, (n, %) | Â | Â | 0.909 | 0.058 |
 Neurology | 279 (84.8) | 276 (83.9) |  |  |
 E.N.T | 7 (2.1) | 10 (3.0) |  |  |
 Cardiovascular medicine | 1 (0.3) | 1 (0.3) |  |  |
 ICU | 0 | 0 |  |  |
 Others | 42 (12.8) | 42 (12.8) |  |  |
Age (y), (n, %) | Â | Â | 0.991 | 0.026 |
 [18, 45] | 63 (19.1) | 60 (18.2) |  |  |
 [45,60] | 133 (40.4) | 133 (40.4) |  |  |
 [60,75] | 128 (38.9) | 131 (39.8) |  |  |
 ≥ 75 | 5 (1.5) | 5 (1.5) |  |  |
Gender (n, %) | Â | Â | 0.871 | 0.019 |
 Female | 211 (64.1) | 208 (63.2) |  |  |
 Male | 118 (35.9) | 121 (36.8) |  |  |