Table 1.
Clinical characteristics of patients in the three groups
| Variable | Group RD1 (n = 29) | Group RD2 (n = 28) | Group RD3 (n = 29) | p‐values |
|---|---|---|---|---|
| Age (years) | 65.22 ± 3.42 | 66.25 ± 3.85 | 65.90 ± 3.30 | 0.797 |
| Weight (kg) | 65.66 ± 4.47 | 65.32 ± 4.74 | 67.52 ± 5.43 | 0.193 |
| BMI (kg/m2) | 23.24 ± 1.90 | 22.86 ± 2.70 | 22.62 ± 2.11 | 0.575 |
| ASA I/II (n) | 7/22 | 6/22 | 9/20 | 0.691 |
| Sex (male/female) | 12/17 | 15/13 | 17/12 | 0.402 |
| Diagnosis, n（%） | 0.943 | |||
| Aneurysm | 17 (58.62%) | 15 (53.57%) | 14 (48.28%) | |
| Arteriovenous malformation | 2 (6.90%) | 3 (10.71%) | 3 (10.34%） | |
| Carotid artery stenosis | 10 (34.48%) | 10 (35.72%) | 12 (41.38%) | |
| Comorbidity, n (%) | 0.751 | |||
| Hypertension | 18 (62.07%) | 13 (46.43%） | 11 (37.93%) | |
| Diabetes mellitus | 6 (20.69%) | 4 (14.29%） | 7 (24.14%) | |
| COPD/asthma | 1 (3.45%) | 2 (7.14%） | 1 (3.45%) | |
| Coronary heart disease | 2 (6.90%) | 4 (14.29%) | 4 (13.79%) | |
| GCS before surgery | 14.25 (14.00–15.00) | 14.50 (14.00–15.00) | 14.50 (14.00–15.00) | 0.732 |
Variables presented as mean ± SD, median (interquartile range) or number of patients n (%).
Abbreviations: ASA, American Society of Anesthesiology; BMI, body mass index; COPD, chronic obstructive pulmonary disease; GCS, Glasgow Coma Scale.