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Data Structures with shared data
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Cornell Scale for Depression in Dementia

421 Shared Subjects

N/A
Clinical Assessments
Depression
05/28/2015
corn01

View Change History
01
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0 :: 1260 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query corn00b Integer Recommended Informant Used 0;1 0=No; 1=Yes
Query corn01 Integer Recommended Anxiety 0;1;2 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn02 Integer Recommended Sadness 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn03 Integer Recommended Lack of Reactivity to Pleasant Events 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn04 Integer Recommended Irritability 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn05 Integer Recommended Agitation 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn06 Integer Recommended Retardation 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn07 Integer Recommended Multiple Physical Complaints (score 0 if GI symptoms only) 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn08 Integer Recommended Loss of Interest 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn09 Integer Recommended Appetite Loss 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn10 Integer Recommended Weight Loss 0::2 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn11 Integer Recommended Lack of Energy 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn12 Integer Recommended Diurnal Variation of Mood 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn13 Integer Recommended Difficulty Falling Asleep 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn14 Integer Recommended Multiple Awakenings during Sleep 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn15 Integer Recommended Early Morning Awakenings 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn16 Integer Recommended Suicide 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn17 Integer Recommended Self-Depreciation 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn18 Integer Recommended Pessimism 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query corn19 Integer Recommended Mood Congruent Delusions 0 = Absent; 1 = Mild or Intermittent; 2 = Severe
Query visitid Integer Recommended MetaTrial Visit ID System variable: unique code for each type of visit -use to merge files
Query visit String 60 Recommended Visit name
Query visnum Float Recommended Numeric Visit Number -1.5 = Pre-Screening; -1 = Screening; 0 = Baseline; ## = Visit ## (from 1 to 10); Whole numbers = standard monthly visits; #.001 - #.009 = Unscheduled; #.1 = End of Phase 1; #.2 = End of Phase 2; #.3 = End of Phase 3; #.4 = End of Open Choice Phase; #.5 = End of Study; #.6 = Genetic Analysis; 1000=all visits
Query phase_ct String 20 Recommended Current Phase. Phase patient was in at the time of the assessment Phase 4 refers to the follow-up phase. Pre-Rand; Phase 1/1A; Phase 2; Phase 3; Phase 4; Phase 1B; Open-Choice Phase; Screening; Phase 1
Query corn_ts Integer Recommended Cornell Total Score Created variable with 20% missing data rule applied: Sum of (CORN01 � CORN19)
Query last1 Integer Recommended Flag Last Phase 1/1A Visit 1=Yes for all records meeting this criteria
Query base1 Integer Recommended Flag Baseline Phase 1/1A Visit 1=Yes for all records meeting this criteria
Query base_ts Float Recommended Baseline Total Score Scare at Phase 1 baselline
Query c_ts Float Recommended Changed from Baseline ADAS Total Score Change from Phase 1 baseline
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

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