| Characteristics | Value | Percentage |
| Number of patients | 165 |
|
| Mean age (years) +− SD | 50 |
|
| Male to female ratio | 1:1.1 |
|
| Who orders Lab Investigations? And frequency of pre-anaesthetic lab results | ||
| Surgeons | 163 | 98.8 |
| Anaesthetists | 2 | 1.2 |
| Pre-anaesthetic lab results | 165 | 100 |