Pain Research and Treatment / 2016 / Article / Tab 1

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 surgeryChi-square test value

Sex, (%)0.712
 Female198 (44)71 (45)
 Male251 (55)84 (54)
 Unknown 1 ()2 ()

Age (years), mean (SD)63 ()60 ()
Age, group0.018
 18–65, (%)223 (49)95 (60)
 >65, (%)224 (50)61 (39)
 Unknown 3 ()1 ()

Type of surgery1, (%)
 Cecectomy 43 ()4 ()
 Right hemicolectomy188 (31)42 ()
 Resection transverse colon11 ()18 ()
 Left hemicolectomy51 ()10 ()
 Sigmoidectomy101 ()70 ()
 Unspecified excision LI256 ()13 ()

Duration of surgery
 Mean (range), min173 (30–695)182 (40–600)0.573

Anaesthesia technique<0.01
 GA, (%) 169 (37)87 (58)
 GA + RA, (%)275 (61)63 (42)
 Unknown 6 ()

ICD-9 classification.
2LI = large intestine.
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