OBJECTIVE: The colon cancer laparoscopic or open resection (COLOR) trial is an international, randomised controlled trial comparing outcomes of open and laparoscopic surgery for colon cancer. The main purpose of this study was to determine representability by comparing included and nonincluded patients in the participating Swedish centres. DESIGN:At eight centres, which included 391 of the 422 Swedish patients, a local database search was performed to identify retrospectively all patients (n = 2,384) who underwent surgery for colon cancer during the inclusion period, and data was retrieved from medical records. RESULTS:Four hundred fifty-six patients were randomised, 65 of whom were excluded post randomisation (group 2), leaving 391 patients in the study (group 1). For 1,566 patients, valid exclusion criteria were found (group 3). Thus, 362 patients were eligible but not included (group 4). Relative to group 1, patients in group 4 had a significantly higher American Society of Anaesthesiologists (ASA) score, more advanced tumour stage and difference regarding the resections performed. Results showed that 1470 patients (62%) could be calculated as feasible for laparoscopic colon resection (LCR) in a clinical, nontrial situation. CONCLUSIONS: The study population in the Swedish part of the COLOR trial was representative of the eligible population with the exception of comorbidity, where those actually included had less severe comorbidity than the nonincluded but eligible patients. In Sweden, 50-60% of colon cancer patients can be operated on by laparoscopy.
RCT Entities:
OBJECTIVE: The colon cancer laparoscopic or open resection (COLOR) trial is an international, randomised controlled trial comparing outcomes of open and laparoscopic surgery for colon cancer. The main purpose of this study was to determine representability by comparing included and nonincluded patients in the participating Swedish centres. DESIGN: At eight centres, which included 391 of the 422 Swedish patients, a local database search was performed to identify retrospectively all patients (n = 2,384) who underwent surgery for colon cancer during the inclusion period, and data was retrieved from medical records. RESULTS: Four hundred fifty-six patients were randomised, 65 of whom were excluded post randomisation (group 2), leaving 391 patients in the study (group 1). For 1,566 patients, valid exclusion criteria were found (group 3). Thus, 362 patients were eligible but not included (group 4). Relative to group 1, patients in group 4 had a significantly higher American Society of Anaesthesiologists (ASA) score, more advanced tumour stage and difference regarding the resections performed. Results showed that 1470 patients (62%) could be calculated as feasible for laparoscopic colon resection (LCR) in a clinical, nontrial situation. CONCLUSIONS: The study population in the Swedish part of the COLOR trial was representative of the eligible population with the exception of comorbidity, where those actually included had less severe comorbidity than the nonincluded but eligible patients. In Sweden, 50-60% of colon cancerpatients can be operated on by laparoscopy.
Authors: Ruben Veldkamp; Esther Kuhry; Wim C J Hop; J Jeekel; G Kazemier; H Jaap Bonjer; Eva Haglind; Lars Påhlman; Miguel A Cuesta; Simon Msika; Mario Morino; Antonio M Lacy Journal: Lancet Oncol Date: 2005-07 Impact factor: 41.316
Authors: E Kuhry; H J Bonjer; E Haglind; W C J Hop; R Veldkamp; M A Cuesta; J Jeekel; L Påhlman; M Morino; A Lacy; S Delgado Journal: Surg Endosc Date: 2005-03-30 Impact factor: 4.584
Authors: Pierre J Guillou; Philip Quirke; Helen Thorpe; Joanne Walker; David G Jayne; Adrian M H Smith; Richard M Heath; Julia M Brown Journal: Lancet Date: 2005 May 14-20 Impact factor: 79.321
Authors: Ka Lau Leung; Samuel P Y Kwok; Steve C W Lam; Janet F Y Lee; Raymond Y C Yiu; Simon S M Ng; Paul B S Lai; Wan Yee Lau Journal: Lancet Date: 2004-04-10 Impact factor: 79.321
Authors: Antonio M Lacy; Juan C García-Valdecasas; Salvadora Delgado; Antoni Castells; Pilar Taurá; Josep M Piqué; Josep Visa Journal: Lancet Date: 2002-06-29 Impact factor: 79.321
Authors: Heidi Nelson; Daniel J Sargent; H Sam Wieand; James Fleshman; Mehran Anvari; Steven J Stryker; Robert W Beart; Michael Hellinger; Richard Flanagan; Walter Peters; David Ota Journal: N Engl J Med Date: 2004-05-13 Impact factor: 91.245
Authors: Johnna Schölin; Mark Buunen; Wim Hop; Jaap Bonjer; Bo Anderberg; Miguel Cuesta; Salvadora Delgado; Ainitze Ibarzabal; Marie-Louise Ivarsson; Martin Janson; Antonio Lacy; Johan Lange; Lars Påhlman; Stefan Skullman; Eva Haglind Journal: Surg Endosc Date: 2011-06-11 Impact factor: 4.584
Authors: Marco von Strauss und Torney; Ulrich Güller; Farid Rezaeian; Philippe Brosi; Luigi Terracciano; Markus Zuber Journal: World J Surg Date: 2012-10 Impact factor: 3.352
Authors: Alexandra Smith; Debra Howell; Simon Crouch; Dan Painter; John Blase; Han-I Wang; Ann Hewison; Timothy Bagguley; Simon Appleton; Sally Kinsey; Cathy Burton; Russell Patmore; Eve Roman Journal: Int J Epidemiol Date: 2018-06-01 Impact factor: 7.196