Table 5 Characteristics at baseline before PSM: sample of dizziness or vertigo, with the complication of cerebral infarction
Variable | Total (N = 1042) | Gastrodin injection (N = 727) | Extract of Ginkgo Biloba Leaves injection (N = 315) | P |
|---|---|---|---|---|
Region, (n, %) |  |  |  |  < 0.001 |
 Eastern | 427 (41.0) | 323 (44.4) | 104 (33.0) |  |
 Central | 305 (29.3) | 136 (18.7) | 169 (53.7) |  |
 Western | 228 (21.9) | 205 (28.2) | 23 (7.3) |  |
 Northeast | 82 (7.9) | 63 (8.7) | 19 (6.0) |  |
Hospital level, (n, %) | Â | Â | Â | 0.001 |
 Tertiary | 983 (94.3) | 677 (93.1) | 306 (97.1) |  |
 Secondary | 32 (3.1) | 31 (4.3) | 1 (0.3) |  |
 Primary | 27 (2.6) | 19 (2.6) | 8 (2.5) |  |
Hospital department, (n, %) | Â | Â | Â | 0.064 |
 Neurology | 776 (74.5) | 541 (74.4) | 235 (74.6) |  |
 E.N.T | 18 (1.7) | 0 | 0 |  |
 Cardiovascular medicine | 1 (0.1) | 17 (2.3) | 1 (0.3) |  |
 ICU | 247 (23.7) | 1 (0.1) | 0 (0.0) |  |
 Others | 64 (56, 69) | 168 (23.1) | 79 (25.1) |  |
Age (y), (n, %) | Â | Â | Â | 0.022 |
 [18, 45] | 35 (3.4) | 19 (2.6) | 16 (5.1) |  |
 [45,60] | 314 (30.1) | 230 (31.6) | 84 (26.7) |  |
 [60,75] | 657 (63.1) | 448 (61.6) | 209 (66.3) |  |
 ≥ 75 | 36 (3.5) | 30 (4.1) | 6 (1.9) |  |
Gender (n, %) | Â | Â | Â | 0.281 |
 Female | 510 (48.9) | 364 (50.1) | 146 (46.3) |  |
 Male | 532 (51.1) | 363 (49.9) | 169 (53.7) |  |