Table 1. Patient Demographics and Anesthesia/Surgery Data, Beijing, China (N = 830).
| Variables | Value |
|---|---|
| Age, n, mean± std (yr) | 830, 50.1±16.9 |
| Age>65, n (%) | 107 (12.9) |
| Gender, n (%) | 830 (100.0) |
| Male | 500 (60.2) |
| Female | 330 (39.8) |
| BMI, n, mean± std | 830, 24.7±7.2 |
| History, n (%) | 830 (100.0) |
| Smoking | 152 (18.3) |
| Alcohol | 109 (13.1) |
| Hypertension | 225 (27.1) |
| Cerebral Vascular disease | 42 (5.1) |
| Cardiovascular disease | 272 (32.8) |
| Diabetes | 80 (10.0) |
| Chronic liver disease | 35 (4.2) |
| ASA, n (%) | 830 (100.0) |
| 1 | 282 (33.8) |
| 2 | 468 (56.1) |
| 3 | 78 (9.4) |
| 4 | 4 (0.5) |
| Type of Surgery, n (%) | 830 (100.0) |
| General Surgery | 234 (28.2) |
| OB/GYN | 227 (27.4) |
| Perpherial Vasular Surgery | 12 (1.5) |
| Cardiovascular Surgery | 8 (0.9) |
| Thoracic Surgery | 70 (8.4) |
| Orthopaedics Surgery | 126 (15.2) |
| Neurosurgery | 22 (2.7) |
| Uroloy | 72 (8.7) |
| Plastic Surgery | 27 (3.3) |
| Others | 32 (3.9) |
| Magnitude of Surgery 1 , n (%) | 830 (100.0) |
| minor | 5 (0.6) |
| intermediate | 169 (20.4) |
| major | 421 (50.7) |
| major plus | 235 (23.8) |
| Endoscopic Surgery 2 , n (%) | 427 (51.5%) |
| Mode of Anesthesia, n (%) | 830 (100.0) |
| General | 783 (94.3) |
| Combined general | 47 (5.7) |
| Total Surgery Time 3 , n, mean± std (h) | 830, 2.1±1.4 |
| Total Anesthesia Time 4 , n, mean± std (h) | 830, 2.5±1.5 |
1 Magnitude of surgery as below: minor surgery: excision of lesion of skin; drainage of breast abscess, etc. Intermediate surgery: primary repair of inguinal hernia; excision of varicose vein(s) of leg; tonsillectomy/adenotonsillectomy; knee arthroscopy, etc. major surgery: total abdominal hysterectomy; endoscopic resection of prostate; lumbar discectomy; thyroidectomy, etc. major surgery plus: total joint replacement; lung operations; colonic resection; radical neck dissection; neurosurgery; cardiac surgery)
2 Arthroscopic, laparoscopic, etc
3 Time from incision to closure
4 Time from induction to discontinuation of anesthetic agents