LOS Colon Cancer 621 cases

The data set comes from the University of Medicine and Pharmacy of Craiova, Romania, and concerns the hospitalization period of 621 patients diagnosed with colorectal cancer that underwent surgery between 2007 and 2014. It contains 8 attributes, namely socio-demographic variables (age, sex) and clinical information (operation type, tumor topography, stage, tumor parameter (T), adenopathy parameter (N) and metastases (M)).The independent variable -- the hospitalization period -- is split into three intervals: 1-7 days -- short stay (177 cases), 8-14 days -- medium stay (96 cases), over 14 days -- long stay (95 cases). The "Surgery" attribute values are renamed in the data set for an easier manner of accessing them:one = Ileotransverse-anastomosistwo = Raybard colectomythree = Ileosigmoid anastomosisfour = Segmental colectomyfive = Left hemicolectomysix = Subtotal colectomyseven = Abdominoperineal rectal amputationeight = Hartmann rectosigmoidian resectionnine = Rectal biopsyten = Rectosigmoidian resectioneleven = Loop colostomytwelve = Total colectomythirteen = Right hemicolectomyfourteen = Ileostomyfifteen = Low anterior rectosigmoidian resection (Dixon procedure)A thorough description of the data set can be found in the paper:* Ruxandra Stoean, Catalin Stoean, Adrian Sandita, Daniela Ciobanu, Cristian Mesina, Interpreting Decision Support from Multiple Classifiers for Predicting Length of Stay in Patients with Colorectal Carcinoma, Neural Processing Letters, DOI 10.1007/s11063-017-9585-7, pp.1-17, 2017.If you publish material based on the current database, please refer the paper above within the References.本数据集源自罗马尼亚克拉约瓦医科大学（University of Medicine and Pharmacy of Craiova），收录了2007年至2014年间接受手术治疗的621例结直肠癌（colorectal cancer）患者的住院时长相关数据。数据集共包含8项属性，分别为社会人口学变量（socio-demographic variables，含年龄、性别）与临床信息（clinical information，含手术类型、肿瘤部位、肿瘤分期、T参数（tumor parameter (T)）、淋巴结参数（adenopathy parameter (N)）及远处转移参数（metastases (M)））。 本研究的因变量——住院时长——被划分为三个区间：1~7天为短期住院（177例）、8~14天为中期住院（96例）、14天以上为长期住院（95例）。数据集已对“手术”属性的取值进行重命名以方便调用，具体对应关系如下： 1=回肠横结肠吻合术（Ileotransverse-anastomosis） 2=雷巴德结肠切除术（Raybard colectomy） 3=回肠乙状结肠吻合术（Ileosigmoid anastomosis） 4=节段性结肠切除术（Segmental colectomy） 5=左半结肠切除术（Left hemicolectomy） 6=次全结肠切除术（Subtotal colectomy） 7=腹会阴直肠切除术（Abdominoperineal rectal amputation） 8=哈特曼直肠乙状结肠切除术（Hartmann rectosigmoidian resection） 9=直肠活检术（Rectal biopsy） 10=直肠乙状结肠切除术（Rectosigmoidian resection） 11=袢式结肠造口术（Loop colostomy） 12=全结肠切除术（Total colectomy） 13=右半结肠切除术（Right hemicolectomy） 14=回肠造口术（Ileostomy） 15=低位前切除直肠乙状结肠吻合术（Dixon手术，Low anterior rectosigmoidian resection (Dixon procedure)） 本数据集的详细描述可参阅以下论文：* Ruxandra Stoean、Catalin Stoean、Adrian Sandita、Daniela Ciobanu、Cristian Mesina，《结直肠癌患者住院时长预测的多分类器决策支持解释》，《神经处理快报》（Neural Processing Letters），DOI: 10.1007/s11063-017-9585-7，第1-17页，2017年。若基于本数据集发表研究成果，请在参考文献中引用上述论文。