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Knee X-Ray Semi-Quantitative Scores

0 Shared Subjects

Central Reading of Knee X-rays for Kellgren & Lawrence Grade and Individual Radiographic Features of Tibiofemoral Knee OA. Project 15 Test-Retest Reliability of Semi-quantitative Readings from Knee Radiographs.
Clinical Assessments
X-Ray
03/17/2017
kxrsq01
12/21/2022
View Change History
01
Definition
Submission Template
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::1440 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 ageyears Integer Recommended Age in years
Query visit String 60 Recommended Visit name
Query xrnw2n Integer Recommended FU kXR reading (BU): first visit scored KL=2N 0::3 0=KL>=2 at baseline; 1=KL 0-1 at baseline, no change; 2=Incident KL>=2 at prev followup visit; 3=Incident KL>=2 at this visit
Query xrsctm Integer Recommended Sclerosis (OARSI grades 0- 3) tibia medial compartment 0::3
Query xrsctl Integer Recommended Sclerosis (OARSI grades 0- 3) tibia lateral compartment 0::3
file_source String 1,024 Recommended File name/location
Query xrcyfl Integer Recommended Cysts (Grades 0- 1) femur lateral compartment 0;1
Query xrcyfm Integer Recommended Cysts (Grades 0- 1) femur medial compartment 0;1
Query xrscfm Integer Recommended Sclerosis (OARSI grades 0- 3) femur medial compartment 0::3
Query xrscfl Integer Recommended Sclerosis (OARSI grades 0- 3) femur lateral compartment 0::3
Query xrcytl Integer Recommended Cysts (Grades 0- 1) tibia lateral compartment 0;1
Query xrcytm Integer Recommended Cysts (Grades 0- 1) tibia medial compartment 0::2
Query xrostl Integer Recommended Osteophytes (OARSI grades 0- 3) tibia lateral compartment 0::3
Query xrostm Integer Recommended Osteophytes (OARSI grades 0- 3) tibia medial compartment 0::3
Query xrjsl Float Recommended Joint space narrowing (OARSI grades 0- 3) lateral compartment 0::3
barcdbu String 20 Recommended Barcode of image analyzed
Query xrjsm Float Recommended Joint space narrowing (OARSI grades 0- 3) medial compartment 0::3
Query xrattl Integer Recommended Attrition (OARSI grades 0- 3) tibia lateral compartment 0::3
Query xrattm Integer Recommended Attrition (OARSI grades 0- 3) tibia medial compartment 0::3
Query side Integer Recommended Side 0::3 0 = neither; 1 = right; 2 = left; 3 = bilateral; blank = Missing Form/Incomplete Workbook
Query xrkl Integer Recommended Kellgren and Lawrence (grades 0- 4) 0::4
Query xrosfl Integer Recommended Osteophytes (OARSI grades 0- 3) femur lateral compartment 0::3
Query xrosfm Integer Recommended Osteophytes (OARSI grades 0- 3) femur medial compartment 0::3
version String 20 Recommended Version/code of assessment
Query xrnwkl2 Integer Recommended FU kXR reading (BU): first visit scored KL>=2 0::3 0=KL>=2 at baseline; 1=KL 0-1 at baseline, no change; 2=Incident KL>=2 at prev followup visit; 3=Incident KL>=2 at this visit
readprj String 5 Recommended Project
Query xrchl Integer Recommended Chondrocalcinosis (Grades 0- 1) lateral compartment 0;1
Query xrchm Integer Recommended Chondrocalcinosis (Grades 0- 1) medial compartment 0;1
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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