Table 1 Baseline characteristics of the intention-to-treat analysis population
Patient education + information brochure (n = 138) | Information brochure only (n = 106) | |
|---|---|---|
Sex | ||
Male | 74 (53.6%) | 56 (52.8%) |
Female | 64 (46.4%) | 50 (47.2%) |
Age (years) | 57.0 (14.0) | 56.8 (13.4) |
Body mass index (kg/m2) | 25.1 (4.2) | 25.7 (5.2) |
ASA classification | ||
I (normal healthy patient) | 7 (5.1%) | 4 (3.8%) |
II (mild systemic disease) | 72 (52.2%) | 60 (56.6%) |
III (severe systemic disease) | 58 (42.0%) | 41 (38.7%) |
IV (constant threat to life) | 1 (0.7%) | 1 (0.9%) |
Target organ for operation | ||
Esophagus | 3 (2.2%) | 4 (3.8%) |
Stomach | 9 (6.5%) | 5 (4.7%) |
Small intestine | 5 (3.6%) | 6 (5.7%) |
Colon | 19 (13.8%) | 14 (13.2%) |
Rectum | 9 (6.5%) | 8 (7.5%) |
Pancreas | 59 (42.8%) | 39 (36.8%) |
Liver | 12 (8.7%) | 13 (12.3%) |
Kidney | 9 (6.5%) | 6 (5.7%) |
Other | 13 (9.4%) | 11 (10.4%) |
Comorbidities | ||
Chronic cardiovascular disease | 41 (29.7%) | 36 (34.0%) |
Chronic pulmonary disease | 15 (10.9%) | 12 (11.3%) |
History of deep vein thrombosis | 10 (7.2%) | 13 (12.3%) |
History of pulmonary embolism | 1 (0.7%) | 5 (4.7%) |
Diabetes mellitus | 21 (15.2%) | 9 (8.5%) |
Other significant disease | 66 (47.8%) | 48 (45.3%) |
Previous laparotomy (incision > 10 cm) | 59 (42.8%) | 39 (36.8%) |
Duration of operation (min) | 211.9 (116.9) | 216.3 (110.7) |