Characteristics of patients and procedures before and after intervention
| Active before | Active after | Control before | Control after | |
|---|---|---|---|---|
| Mean age (years) of the patient | 57.8 | 57 | 51.7 | 52.2 |
| Male patients (%) | 48 | 48 | 52 | 51 |
| Mean duration of operation in minutes (range) | 113 (61–235) | 115 (73–219) | 98 (30–144) | 71 (30–140) |
| Performed by consultant, % | 49 | 51 | 59 | 41 |