Table 3 Perioperative data

All participants (n = 218)

Surgical specialty

 Orthopaedics

43 (19.7%)

 Urology

37 (17.0%)

 Eyes

22 (10.1%)

 Abdominal – Lower GI

20 (9.2%)

 Gynaecology

15 (6.9%)

 Burns & Plastics

14 (6.4%)

 Head & Neck

12 (5.5%)

 Abdominal – Upper GI

9 (4.1%)

 Cardiac

8 (3.7%)

 Thoracic

7 (3.2%)

 Vascular

7 (3.2%)

 Neurosurgery

6 (2.8%)

 Abdominal – Hepatobiliary

2 (0.9%)

 Other

16 (7.3%)

ASA

 1

4 (1.8%)

 2

75 (34.4%)

 3

53 (24.3%)

 4

6 (2.8%)

 Not documented

80 (36.7%)

Type of anaesthetic

 General—inhalational

84 (38.5%)

 General—target controlled infusion

51 (23.4%)

 Local infiltration only

41 (18.8%)

 Spinal

23 (10.6%)

 Regional block

11 (5.0%)

 Sedation

6 (2.8%)

 Unknown

2 (0.9%)