Research Article
Open versus Laparoscopic Surgery: Does the Surgical Technique Influence Pain Outcome? Results from an International Registry
Table 1
Demographic data (frequencies, mean, range, SD, and chi-square test) of the participants and of intraoperative characteristics.
| | | Open surgery | Laparoscopic surgery | Chi-square test value |
| | Sex, (%) | | | 0.712 | | Female | 198 (44) | 71 (45) | | | Male | 251 (55) | 84 (54) | | | Unknown | 1 () | 2 () | |
| | Age (years), mean (SD) | 63 () | 60 () | | | Age, group | | | 0.018 | | 18–65, (%) | 223 (49) | 95 (60) | | | >65, (%) | 224 (50) | 61 (39) | | | Unknown | 3 () | 1 () | |
| | Type of surgery1, (%) | | | | | Cecectomy | 43 () | 4 () | | | Right hemicolectomy | 188 (31) | 42 () | | | Resection transverse colon | 11 () | 18 () | | | Left hemicolectomy | 51 () | 10 () | | | Sigmoidectomy | 101 () | 70 () | | | Unspecified excision LI2 | 56 () | 13 () | |
| | Duration of surgery | | | | | Mean (range), min | 173 (30–695) | 182 (40–600) | 0.573 |
| | Anaesthesia technique | | | <0.01 | | GA, (%) | 169 (37) | 87 (58) | | | GA + RA, (%) | 275 (61) | 63 (42) | | | Unknown | 6 () | | |
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ICD-9 classification.
2LI = large intestine.
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