"1" "" "" "" "" "Endoscopy (colo_endo) Data Dictionary" "" "TABLE OF CONTENTS" "Document Summary...................................................................................................................................................... 2" "" "Endoscopy (colo_endo): Data Dictionary ....................................................................................................................... 3" "" "Section 1: Identif iers ........................................................................................................................................... 3" "" "Section 2: Pr ocedure Informatio n .................................................................................................................... 4" "" "Section 3: Endoscopic Findings ....................................................................................................................... 5" "" "Section 4: Form Info .......................................................................................................................................... 12" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 2" "" "" "" "" "Document Summary" "" "Property Value" "Document Title Endoscopy (colo_endo): Data Dictionary" "Date Created 04/20/2022" "Sections 4" "Entries 85" "Document Filename dictionary_colo_endo-mar22-032222.rtf" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 3" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "Section 1: Identifiers" "" "Variable Label Description Format Text" "build Build Masterfile build. Distributed to all datasets Char, 30" "and used to identify the version of the" "database." "build_cancers Build Cancer Cohort The source of the build data. 1=""Trial Only""" "build_incidence_cutoff Build Incidence Cutoff The censoring date for any cancer data 1=""Cancers Through 2009""" "associated with the dataset." "endoindex Endoscopy Number Endoscopy record number. Starts at 1 Numeric" "for each participant, for each study year," "and counts up for each additional" "endoscopy in that year." "plco_id PLCO ID PLCO ID char" "study_yr Study Year Study year of the DEC/DEC2/DEC3 form Numeric" "that the endoscopy was recorded on." "For screen-prompted forms, this is the" "study year of the screen that prompted" "the form. For other forms, this is the" "study year of the cancer report that" "prompted the form." "study_yr12mon Study Year of Positive The year of the last positive screen within Numeric" "Screen Within 12 Months 12 months before the endoscopy, if there .N=""Not applicable""" "Before Endoscopy was such a screen." "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 4" "" "" "" "" "Section 2: Procedure Information" "" "Variable Label Description Format Text" "endo_type Type of Endoscopy The type of endoscopy. Version 1 DEC 1=""Sigmoidoscopy""" "forms had separate levels for rigid 2=""Colonoscopy""" "sigmoidoscopies and flexible 3=""Endoscopy, NOS""" "sigmoidoscopies, but all sigmoidoscopies" "have been combined into a single level" "for this variable." "sbowel Bowel Prepatation Was bowel preparation adequate for this .M=""Missing""" "endoscopy? 0=""Inadequate""" "1=""Adequate""" "9=""Not Available""" "scecum Was Cecum Visualized Was the cecum visualized on this .M=""Missing""" "endoscopy? 0=""No""" "1=""Yes""" "9=""Not Available""" "sdays Days Until Endoscopy Days from randomization to this Numeric" "endoscopy." "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 5" "" "" "" "" "Section 3: Endoscopic Findings" "" "Variable Label Description Format Text" "adencount Number of Adenomas How many confirmed adenomas were Numeric" "Found found by this endoscopy?" "adeneith Adenoma Found Was an adenoma found by this 0=""No""" "endoscopy on either side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "adenleft Adenoma Found on Left Was an adenoma found by this 0=""No""" "Side endoscopy on the left side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "adenrght Adenoma Found on Right Was an adenoma found by this 0=""No""" "Side endoscopy on the right side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "adveith Advanced Adenoma Was an advanced adenoma found by this 0=""No""" "Found endoscopy on either side of the colon? 1=""Yes, advanced adenoma" "Adenomas are considered advanced if found by this endoscopy""" "they are villous, have dysplasia, are large 9=""Unknown""" "(>= 1 cm), or are an in situ carcinoma. 11=""Advanced adenoma found," "possibly by this endoscopy""" "advleft Advanced Adenoma Was an advanced adenoma found by this 0=""No""" "Found on Left Side endoscopy on the left side of the colon? 1=""Yes, advanced adenoma" "Adenomas are considered advanced if found by this endoscopy""" "they are villous, have dysplasia, are large 9=""Unknown""" "(>= 1cm), or are an in situ carcinoma. 11=""Advanced adenoma found," "possibly by this endoscopy""" "advrght Advanced Adenoma Was an advanced adenoma found by this 0=""No""" "Found on Right Side endoscopy on the right side of the colon? 1=""Yes, advanced adenoma" "Adenomas are considered advanced if found by this endoscopy""" "they are villous, have dysplasia, are large 9=""Unknown""" "(>= 1cm), or are an in situ carcinoma. 11=""Advanced adenoma found," "possibly by this endoscopy""" "canceith Cancer Found Was cancer found by this endoscopy on 0=""No""" "either side of the colon? 1=""Yes""" "11=""Cancer found, possibly by" "this endoscopy""" "cancleft Cancer Found on Left Was cancer found by this endoscopy on 0=""No""" "Side the left side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Cancer found, possibly by" "this endoscopy""" "cancrght Cancer Found on Right Was cancer found by this endoscopy on 0=""No""" "Side the right side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Cancer found, possibly by" "this endoscopy""" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 6" "" "" "" "" "Variable Label Description Format Text" "colsw_eith Most Severe Finding Description of the most severe findings 1=""Cancer""" "for this endoscopy on either side of the 2=""Advanced adenoma""" "colon. 3=""Adenoma""" "4=""Hyperplastic polyp""" "5=""Benign polyp, NOS""" "6=""Colonoscopy procedure, both" "sides viewed""" "7=""Endoscopy, NOS procedure," "possibly only left side viewed""" "8=""Sigmoidoscopy procedure," "likely only left side viewed""" "colsw_left Most Severe Finding on Description of the most severe findings 1=""Cancer on left side""" "Left Side for this endoscopy on the left side of the 2=""Advanced adenoma on left" "colon. side""" "3=""Adenoma on left side""" "4=""Hyperplastic polyp on left side""" "5=""Benign polyp, NOS on left" "side""" "6=""Colonoscopy procedure, left" "side viewed""" "7=""Endoscopy, NOS procedure," "left side viewed""" "8=""Sigmoidoscopy procedure, left" "side viewed""" "colsw_rght Most Severe Finding on Description of the most severe findings 1=""Cancer on right side""" "Right Side for this endoscopy on the right side of the 2=""Advanced adenoma on right" "colon. side""" "3=""Adenoma on right side""" "4=""Hyperplastic polyp on right" "side""" "5=""Benign polyp, NOS on right" "side""" "6=""Colonoscopy procedure, right" "side viewed""" "7=""Endoscopy, NOS procedure," "right side possibly viewed""" "9=""Sigmoidoscopy procedure," "right side likely not viewed""" "largeith Large Adenoma Found Was a large (>= 1cm) adenoma found by 0=""No""" "this endoscopy on either side of the 1=""Yes""" "colon? The value 2 is used when there 2=""Probably Large""" "are multiple polyps recorded in one 9=""Unknown""" "record, and at least one polyp is large and 11=""Large adenoma found," "at least one is an adenoma. possibly by this endoscopy""" "largleft Large Adenoma Found on Was a large (>= 1cm) adenoma found by 0=""No""" "Left Side this endoscopy on the left side of the 1=""Yes""" "colon? The value 2 is used when there 2=""Probably Large""" "are multiple polyps recorded in one 9=""Unknown""" "record, and at least one polyp is large and 11=""Large adenoma found," "at least one is an adenoma. possibly by this endoscopy""" "largrght Large Adenoma Found on Was a large (>= 1cm) adenoma found by 0=""No""" "Right Side this endoscopy on the right side of the 1=""Yes""" "colon? The value 2 is used when there 2=""Probably Large""" "are multiple polyps recorded in one 9=""Unknown""" "record, and at least one polyp is large and 11=""Large adenoma found," "at least one is an adenoma. possibly by this endoscopy""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 7" "" "" "" "" "Variable Label Description Format Text" "loc_largest Location of Largest Location of the largest adenoma found by .M=""Missing""" "Adenoma this endoscopy. .N=""Not applicable""" "1=""Cecum""" "2=""Ascending colon""" "3=""Hepatic flexure""" "4=""Transverse colon""" "5=""Splenic flexure""" "6=""Descending colon""" "7=""Sigmoid colon""" "8=""Rectum""" "10=""Multiple possible locations""" "99=""Not available""" "size_largest Size of Largest Adenoma Categorical size of the largest adenoma .N=""Not applicable""" "found by this endoscopy: diminutive 1=""Diminutive""" "(0.0-0.4 cm), small (0.5-0.9 cm) or large 2=""Small""" "(1.0 or greater cm). 3=""Large""" "9=""Unknown""" "aden_app Adenoma Found in Was an adenoma found in the appendix 0=""No""" "Appendix by this endoscopy? 1=""Yes""" "9=""Unknown""" "aden_asc Adenoma Found in Was an adenoma found in the ascending 0=""No""" "Ascending Colon colon by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "aden_cec Adenoma Found in Was an adenoma found in the cecum by 0=""No""" "Cecum this endoscopy? 1=""Yes""" "9=""Unknown""" "aden_dec Adenoma Found in Was an adenoma found in the 0=""No""" "Descending Colon descending colon by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "aden_hep Adenoma Found in Was an adenoma found in the hepatic 0=""No""" "Hepatic Flexure flexure by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "aden_rec Adenoma Found in Was an adenoma found in the rectum by 0=""No""" "Rectum this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "aden_sig Adenoma Found in Was an adenoma found in the sigmoid 0=""No""" "Sigmoid Colon colon by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Adenoma found, possibly by" "this endoscopy""" "aden_spl Adenoma Found in Was an adenoma found in the splenic 0=""No""" "Splenic Flexure flexure by this endoscopy? 1=""Yes""" "9=""Unknown""" "aden_tra Adenoma Found in Was an adenoma found in the transverse 0=""No""" "Transverse Colon colon by this endoscopy? 1=""Yes""" "9=""Unknown""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 8" "" "" "" "" "Variable Label Description Format Text" "aden_unk Adenoma Found in Was an adenoma found by this 0=""No""" "Unknown Location endoscopy, but the side of the colon 1=""Yes""" "could not be determined? 9=""Unknown""" "adv_app Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Appendix appendix by this endoscopy? 1=""Yes""" "9=""Unknown""" "adv_asc Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Ascending ascending colon by this endoscopy? 1=""Yes""" "Colon 9=""Unknown""" "11=""Advanced adenoma found," "possibly by this endoscopy""" "adv_cec Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Cecum cecum by this endoscopy? 1=""Yes""" "9=""Unknown""" "adv_dec Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Descending descending colon by this endoscopy? 1=""Yes""" "Colon 9=""Unknown""" "11=""Advanced adenoma found," "possibly by this endoscopy""" "adv_hep Advenced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Hepatic Flexure hepatic flexure by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Advanced adenoma found," "possibly by this endoscopy""" "adv_rec Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Rectum rectum by this endoscopy? 1=""Yes""" "9=""Unknown""" "adv_sig Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Sigmoid Colon sigmoid colon by this endoscopy? 1=""Yes""" "9=""Unknown""" "11=""Advanced adenoma found," "possibly by this endoscopy""" "adv_spl Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Splenic Flexure splenic flexure by this endoscopy? 1=""Yes""" "9=""Unknown""" "adv_tra Advanced Adenoma Was an advanced adenoma found in the 0=""No""" "Found in Transverse transverse colon by this endoscopy? 1=""Yes""" "Colon 9=""Unknown""" "adv_unk Advanced Adenoma Was an advanced adenoma found by this 0=""No""" "Found in Unknown endoscopy, but the side of the colon 1=""Yes""" "Location could not be determined? 9=""Unknown""" "rsize_largest Size of Largest Adenoma Size in millimeters of the largest adenoma Numeric" "in Millimeters found by this endoscopy. .M=""Missing""" ".N=""Not applicable""" "shyper Hyperplastic Polyps How many hyperplastic polyps were .V=""Not asked on this form" "Found found by this endoscopy? This question version""" "is asked only for version 3 forms, where 0=""None""" "individual hyperplastic polyps are not 1=""1""" "recorded. 2=""2 or more""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 9" "" "" "" "" "Variable Label Description Format Text" "slesio Number of Lesions Found Total number of lesions found by this Numeric" "endoscopy. This is asked on version 1 .M=""Missing""" "and version 2 forms. .V=""Not asked on this form" "version""" "98=""Multiple Polyps, Number" "Unknown""" "99=""Not Available""" "beneith Benign Polyp, NOS, Was a benign polyp, NOS, found by this 0=""No""" "Found endoscopy on either side of the colon? 1=""Yes""" "These polyps are only recorded on 9=""Unknown""" "version 1 and 2 forms." "benleft Benign Polyp, NOS, Was a benign polyp, NOS, found by this 0=""No""" "Found on Left Side endoscopy on the left side of the colon? 1=""Yes""" "These polyps are only recorded on 9=""Unknown""" "version 1 and 2 forms." "benrght Benign Polyp, NOS, Was a benign polyp, NOS, found by this 0=""No""" "Found on Right Side endoscopy on the right side of the colon? 1=""Yes""" "These polyps are only recorded on 9=""Unknown""" "version 1 and 2 forms." "bordeith Borderline Malignant Was a borderline malignant carcinoma 0=""No""" "Carcinoma Found found by this endoscopy on either side of 1=""Yes, borderline carcinoma" "the colon? found by this endoscopy""" "bordleft Borderline Malignant Was a borderline malignant carcinoma 0=""No""" "Carcinoma Found on Left found by this endoscopy on the left side 1=""Yes, borderline carcinoma" "Side of the colon? found by this endoscopy""" "bordrght Borderline Malignant Was a borderline malignant carcinoma 0=""No""" "Carcinoma Found on found by this endoscopy on the right side" "Right Side of the colon?" "cpvleith Completely Villous Was a completely villous adenoma found 0=""No""" "Adenoma Found by this endoscopy on either side of the 1=""Yes""" "colon? 9=""Unknown""" "11=""Completely Villous adenoma" "found, possibly by this" "endoscopy""" "cpvlleft Completely Villous Was a completely villous adenoma found 0=""No""" "Adenoma Found on Left by this endoscopy on the left side of the 1=""Yes""" "Side colon? 9=""Unknown""" "11=""Completely Villous adenoma" "found, possibly by this" "endoscopy""" "cpvlrght Completely Villous Was a completely villous adenoma found 0=""No""" "Adenoma Found on Right by this endoscopy on the right side of the 1=""Yes""" "Side colon? 9=""Unknown""" "dyspeith Polyp with Dysplasia Was a polyp with severe dysplasia found 0=""No""" "Found by this endoscopy on either side of the 1=""Yes""" "colon? 9=""Unknown""" "11=""Polyp with dysplasia found," "possibly by this endoscopy""" "dyspleft Polyp with Dysplasia Was a polyp with severe dysplasia found 0=""No""" "Found on Left Side by this endoscopy on the left side of the 1=""Yes""" "colon? 9=""Unknown""" "11=""Polyp with dysplasia found," "possibly by this endoscopy""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 10" "" "" "" "" "Variable Label Description Format Text" "dysprght Polyp with Dysplasia Was a polyp with severe dysplasia found 0=""No""" "Found on Right Side by this endoscopy on the right side of the 1=""Yes""" "colon? 9=""Unknown""" "hypeith Hyperplastic Polyp Found Was a hyperplastic polyp found by this 0=""No""" "endoscopy on either side of the colon? 1=""Yes""" "9=""Unknown""" "11=""Hyperplastic polyp found," "possibly by this endoscopy""" "hypleft Hyperplastic Polyp Found Was a hyperplastic polyp found by this 0=""No""" "on Left Side endoscopy on the left side of the colon? 1=""Yes""" "For version 3 forms, the location of 9=""Unknown""" "hyperplastic polyps is not recorded. 11=""Hyperplastic polyp found," "possibly by this endoscopy""" "hyprght Hyperplastic Polyp Found Was a hyperplastic polyp found by this 0=""No""" "on Right Side endoscopy on the right side of the colon? 1=""Yes""" "For version 3 forms, the location of 9=""Unknown""" "hyperplastic polyps is not recorded. 11=""Hyperplastic polyp found," "possibly by this endoscopy""" "insieith Is Situ Carcinoma Found Was an in situ carcinoma found by this 0=""No""" "endoscopy on either side of the colon? 1=""Yes, in situ carcinoma found" "by this endoscopy""" "11=""In situ carcinoma found," "possibly by this endoscopy""" "insileft Is Situ Carcinoma Found Was an in situ carcinoma found by this 0=""No""" "on Left Side endoscopy on the left side of the colon? 1=""Yes, in situ carcinoma found" "by this endoscopy""" "11=""In situ carcinoma found," "possibly by this endoscopy""" "insirght Is Situ Carcinoma Found Was an in situ carcinoma found by this 0=""No""" "on Right Side endoscopy on the right side of the colon? 1=""Yes, in situ carcinoma found" "by this endoscopy""" "muceith Colonic Mucosa Polyp Was a polyp determined to be colonic 0=""No""" "Found mucosa found by this endoscopy on 1=""Yes""" "either side of the colon? These polyps 9=""Unknown""" "are only recorded on version 1 and 2 11=""Colonic mucosa found," "forms. possibly by this endoscopy""" "mucleft Colonic Mucosa Polyp Was a polyp determined to be colonic 0=""No""" "Found on Left Side mucosa found by this endoscopy on the 1=""Yes""" "left side of the colon? These polyps are 9=""Unknown""" "only recorded on version 1 and 2 forms. 11=""Colonic mucosa found," "possibly by this endoscopy""" "mucrght Colonic Mucosa Polyp Was a polyp determined to be colonic 0=""No""" "Found on Right Side mucosa found by this endoscopy on the 1=""Yes""" "right side of the colon? These polyps are 9=""Unknown""" "only recorded on version 1 and 2 forms. 11=""Colonic mucosa found," "possibly by this endoscopy""" "notaveith Polyp with Histology Not Was a polyp with histology not available 0=""No""" "Available Found found by this endoscopy on either side of 1=""Yes""" "the colon? These polyps are only 11=""Polyp with histology not" "recorded on version 1 and 2 forms. available found, possibly by this" "endoscopy""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 11" "" "" "" "" "Variable Label Description Format Text" "notavleft Polyp with Histology Not Was a polyp with histology not available 0=""No""" "Available Found on Left found by this endoscopy on the left side 1=""Yes""" "Side of the colon? These polyps are only 9=""Unknown""" "recorded on version 1 and 2 forms. 11=""Polyp with histology not" "available found, possibly by this" "endoscopy""" "notavrght Polyp with Histology Not Was a polyp with histology not available 0=""No""" "Available Found on Right found by this endoscopy on the right side 1=""Yes""" "Side of the colon? These polyps are only 9=""Unknown""" "recorded on version 1 and 2 forms. 11=""Polyp with histology not" "available found, possibly by this" "endoscopy""" "otheith Polyp with Histology Was a polyp with histology of ""other 0=""No""" "Other Specify Found specify"" which could not be recoded 1=""Yes""" "found by this endoscopy on either side of 11=""Type of polyp found, possibly" "the colon? These polyps are only by this endoscopy""" "recorded on version 1 and 2 forms." "othleft Polyp with Histology Was a polyp with histology of ""other 0=""No""" "Other Specify Found on specify"" which could not be recoded 1=""Yes""" "Left Side found by this endoscopy on the left side 9=""Unknown""" "of the colon? These polyps are only 11=""Type of polyp found, possibly" "recorded on version 1 and 2 forms. by this endoscopy""" "othrght Polyp with Histology Was a polyp with histology of ""other 0=""No""" "Other Specify Found on specify"" which could not be recoded 1=""Yes""" "Right Side found by this endoscopy on the right side 9=""Unknown""" "of the colon? These polyps are only" "recorded on version 1 and 2 forms." "villeith Villous Adenoma Found Was a villous adenoma found by this 0=""No""" "endoscopy on either side of the colon? 1=""Yes""" "Both completely villous and tubulovillous 9=""Unknown""" "adenomas are considered villous in this 11=""Villous adenoma found," "variable. possibly by this endoscopy""" "villleft Villous Adenoma Found Was a villous adenoma found by this 0=""No""" "on Left Side endoscopy on the left side of the colon? 1=""Yes""" "Both completely villous and tubulovillous 9=""Unknown""" "adenomas are considered villous in this 11=""Villous adenoma found," "variable. possibly by this endoscopy""" "villrght Villous Adenoma Found Was a villous adenoma found by this 0=""No""" "on Right Side endoscopy on the right side of the colon? 1=""Yes""" "Both completely villous and tubulovillous 9=""Unknown""" "adenomas are considered villous in this 11=""Villous adenoma found," "variable. possibly by this endoscopy""" "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " 12" "" "" "" "" "Section 4: Form Info" "" "Variable Label Description Format Text" "dec_version DEC Form Version The version of the form the endoscopy 1=""DEC""" "was recorded on. 2=""DEC2""" "3=""DEC3""" "de_prompt Was the DEC prompted 1=""Screen prompted""" "by a positive screen or by 2=""Cancer prompted""" "a cancer diagnosis?" "screen_fsg Is Endoscopy a Screening In a small number of cases, polyps were 0=""No""" "FSG? removed on screening FSGs and 1=""Yes""" "included in the data. Because of this," "these screening FSGs are included in this" "file." "" "" "" "" "Endoscopy (colo_endo): Data Dictionary" "04/20/2022" " "