To create comparable treatment and control groups, the Propensity Index method will be used. To study each variable, multivariate regression will be used. Kaplan-Meier will be used for survival and the log-rank test for comparisons. Significance will be considered if p \<0.05 (two tails). conditions: Colorectal Surgery conditions: Critical Pathways conditions: Enhanced Recovery After Surgery conditions: Retrospective Studies conditions: Chemotherapy, Adjuvant studyType: OBSERVATIONAL observationalModel: OTHER timePerspective: RETROSPECTIVE count: 847 type: ACTUAL name: Colorectal Surgery measure: Overall Survival measure: Disease-free survival measure: Time to disease recurrence measure: Time to return to intended oncologic treatment (RIOT) sex: ALL minimumAge: 18 Years stdAges: ADULT stdAges: OLDER_ADULT facility: Hospital Virgen de los Lirios de Alcoy city: Alcoy state: Alicante country: Spain lat: 38.70545 lon: -0.47432 facility: Hospital General Universitario de Elche city: Elche state: Alicante country: Spain lat: 38.26218 lon: -0.70107 facility: Hospital Universitario Central de Asturias city: Oviedo state: Asturias country: Spain lat: 43.36029 lon: -5.84476 facility: Hospital de Igualada city: Igualada state: Barcelona country: Spain lat: 41.58098 lon: 1.6172 facility: Hospital de Sant Joan Despí Moisès Broggi city: Sant Joan d'Espi state: Barcelona country: Spain lat: 41.36718 lon: 2.0574 facility: Fundación Hospital del Espíritu Santo city: Santa Coloma De Gramenet state: Barcelona country: Spain lat: 41.45152 lon: 2.2081 facility: Hospital Universitari Mútua Terrassa city: Terrassa state: Barcelona country: Spain lat: 41.56667 lon: 2.01667 facility: Hospital Universitario de Vic city: Vic state: Barcelona country: Spain lat: 41.93012 lon: 2.25486 facility: Hospital General Universitario de Castellón city: Castellon de la Plana state: Castellón country: Spain lat: 39.98567 lon: -0.04935 facility: Hospital Universitario Puerta de Hierro city: Majadahonda state: Madrid country: Spain lat: 40.47353 lon: -3.87182 facility: Hospital Universitario de Móstoles city: Mostoles state: Madrid country: Spain lat: 40.32234 lon: -3.86496 facility: Hospital Universitario Rafael Méndez city: Lorca state: Murcia country: Spain lat: 37.67119 lon: -1.7017 facility: Hospital Costa del Sol city: Marbella state: Málaga country: Spain lat: 36.51543 lon: -4.88583 facility: Hospital Nuestra Señora del Prado city: Talavera de la Reina state: Toledo country: Spain lat: 39.96348 lon: -4.83076 facility: Hospital Universitario Araba city: Alava country: Spain lat: 43.36057 lon: -6.19946 facility: Hospital General Universitario de Alicante city: Alicante country: Spain lat: 38.34517 lon: -0.48149 facility: Hospital Clínic Universitat de Barcelona city: Barcelona country: Spain lat: 41.38879 lon: 2.15899 facility: Hospital del Mar city: Barcelona country: Spain lat: 41.38879 lon: 2.15899 facility: Hospital Universitario Santa Creu i Sant Pau city: Barcelona country: Spain lat: 41.38879 lon: 2.15899 facility: Hospital Universitario Vall d´Hebrón city: Barcelona country: Spain lat: 41.38879 lon: 2.15899 facility: Hospital General Universitario de Ciudad Real city: Ciudad Real country: Spain lat: 38.98626 lon: -3.92907 facility: Hospital de Galdakao-Usansolo city: Galdakao country: Spain lat: 43.23333 lon: -2.83333 facility: Hospital Universitario Insular de Gran Canaria city: Las Palmas de Gran Canaria country: Spain lat: 28.09973 lon: -15.41343 facility: Hospital Universitario de Gran Canaria Doctor Negrín city: Las Palmas country: Spain lat: 28.58232 lon: -16.16555 facility: Hospital de La Princesa city: Madrid country: Spain lat: 40.4165 lon: -3.70256 facility: Hospital Universitario 12 de Octubre city: Madrid country: Spain lat: 40.4165 lon: -3.70256 facility: Hospital Universitario Infanta Leonor city: Madrid country: Spain lat: 40.4165 lon: -3.70256 facility: Hospital Universitario Ramón y Cajal city: Madrid country: Spain lat: 40.4165 lon: -3.70256 facility: Hospital Universitario San Carlos city: Madrid country: Spain lat: 40.4165 lon: -3.70256 facility: Complejo Hospitalario de Salamanca city: Salamanca country: Spain lat: 40.96882 lon: -5.66388 facility: Hospital Universitario Donostia city: San Sebastián country: Spain lat: 43.31283 lon: -1.97499 facility: Hospital Universitario Virgen Macarena city: Sevilla country: Spain lat: 37.38283 lon: -5.97317 facility: Consorcio Hospital General Unidersitario de Valencia city: Valencia country: Spain lat: 39.46975 lon: -0.37739 facility: Hospital Clínico Universitario de Valencia city: Valencia country: Spain lat: 39.46975 lon: -0.37739 facility: Hospital Clínico de Valladolid city: Valladolid country: Spain lat: 41.65518 lon: -4.72372 facility: Hospital Universitario Miguel Server city: Zaragoza country: Spain lat: 41.65606 lon: -0.87734 hasResults: False