NDA Help Center

Login Dialog

Frequently Asked Questions

Glossary

NDA Help Center

Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions

Glossary

Loading...

Login
Reset Password

NDA provides a single access to de-identified autism research data. For permission to download data, you will need an NDA account with approved access to NDA or a connected repository (AGRE, IAN, or the ATP). For NDA access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

Warning Notice

This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

Update Password

You have logged in with a temporary password. Please update your password. Passwords must contain 8 or more characters and must contain at least 3 of the following types of characters:

  • Uppercase
  • Lowercase
  • Numbers
  • Special Characters limited to: %,_,!,@,#,$,-,%,&,+,=,),(,*,^,:,;

Subscribe to our mailing list

Mailing List(s)
Email Format

You are now leaving the NIMH Data Archive (NDA) web site to go to:

Click on the address above if the page does not change within 10 seconds.

Disclaimer

NDA is not responsible for the content of this external site and does not monitor other web sites for accuracy.

Accept Terms
Filter Cart
No filters selected
Description
Value Range
Notes
Data Structures with shared data
No filters have been selected
Switch User

Clinical Dementia Rating

cdr

01

Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/project
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired field
interview_ageIntegerRequiredAge in months at the time of the interview/test/sampling/imaging.0 :: 1260Age 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.
sexString20RequiredSex of the subjectM;FM = Male; F = Female
memory_scoreFloatRecommendedDementia Rating Memory0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severememory_recall_score
orientation_scoreFloatRecommendedDementia Rating Orientation0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severe
judgment_problem_solving_scoreFloatRecommendedDementia Rating Problem Solving0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severedecision_making_problem_solving_score
community_affairs_scoreFloatRecommendedDementia Rating Community Affairs0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severe
home_hobby_scoreFloatRecommendedDementia Rating Home Hobby0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severe
personal_care_scoreFloatRecommendedDementia Rating Personal Care0; 0.5; 1; 2; 30 and 0.5 = None; 1 = Mild; 2 = Moderate; 3 = Severe
cdr_sum_of_boxesFloatRecommendedDementia Rating Sum of Boxes Score
global_cdr_scoreFloatRecommendedDementia Rating (CDR) Global score0 :: 30.0 = No Impairment; 0.5 = Questionable impairment; 1.0 = Mild impairment; 2.0 = Moderate impairment; 3.0 = Severe Impairmentqdrstotal
aoh_scoreFloatRecommendedDementia Rating Activities Outside Home0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severeactivities_outside_home_score
tph_scoreFloatRecommendedDementia Rating Toileting Personal Hygiene0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severetoileting_personal_hygiene_score
bpc_scoreFloatRecommendedDementia Rating Behavior Personality Changes0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severebehavior_personality_changes_score
lca_scoreFloatRecommendedDementia Rating Language Communication Abilities0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severelanguage_communication_abilities_score
mood_scoreFloatRecommendedDementia Rating Mood Changes0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severe
attconc_scoreFloatRecommendedDementia Rating Attention Concentration0; 0.5; 1; 2; 30 = None; 0.5 = Questionable; 1 = Mild; 2 = Moderate; 3 = Severeattention_concentration_score
cdritem1_1IntegerRecommendedDoes the subject have a problem with memory and/ or thinking?0; 10= No; 1= Yes; 9= Unknown
cdritem1_1aIntegerRecommendedDoes the subject have a problem with memory and/ or thinking? Is this a consistent problem?0; 10= No; 1= Yes; 9= Unknown
cdritem1_1bIntegerRecommendedDoes the subject have a problem with memory and/ or thinking? Is this a consistent problem? What was the onset of the problem like?1;2;8;91= Sudden; 2= Gradual; 9= Unknown; 8= NA
cdritem1_1cIntegerRecommendedDoes the subject have a problem with memory and/ or thinking? Is this a consistent problem? What was the onset of the problem like? Since onset, how have the problems changed?1;2;3;8;91= Worse; 2= Better; 3= Stable; 9= Unknown; 8= NA
cdritem1_1dIntegerRecommendedDoes the subject have a problem with memory and/ or thinking? Is this a consistent problem? What was the onset of the problem like? Since onset, how have the problems changed? If worse, progression has been:1;2;3;4;81= Rapid; 2= Steady; 3= Stepwise; 4= Variable; 8= NA
cdritem1_2IntegerRecommendedCan they recall recent events?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3IntegerRecommendedCan they remember a short list of items (shopping list)?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3aIntegerRecommendedShopping list: Repeat questions/ statements1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3bIntegerRecommendedShopping list: Misplace items1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3cIntegerRecommendedShopping list: Forget events and/ or conversations1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3dIntegerRecommendedShopping list: Forget to complete tasks1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3eIntegerRecommendedShopping list: Have trouble finding words1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3fIntegerRecommendedShopping list: Trouble expressing self; broken/ nonsensical speech1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_3gIntegerRecommendedShopping list: Have trouble concentrating or paying attention1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_4IntegerRecommendedHas there been some decline in memory during the past year?0; 10= No; 1= Yes
cdritem1_5IntegerRecommendedIs their memory impaired to such a degree that it would have interfered with his/ her activities of daily life a few years ago (or pre-retirement activities)?0; 10= No; 1= Yes
cdritem1_6IntegerRecommendedDo they completely forget a major event (e.g., trip, party, family wedding) within a few weeks of the event?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_7IntegerRecommendedDo they forget pertinent details of the major event?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_8IntegerRecommendedDo they completely forget important information of the distant past (e.g., birth date, wedding date, place of employment)?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem1_9String1,000RecommendedTell me about some recent event in his/ her life that he/ she should remember. Within 1 week:
cdritem1_9mnthString1,000RecommendedTell me about some recent event in his/ her life that he/ she should remember. Within 1 month:
cdritem1_13String1,000RecommendedWhat was his/ her main occupation/ job? (or spouse's job if subject was not employed outside the home)
cdritem1_14String1,000RecommendedWhat was his/ her last major job (or spouse's job if subject was not employed)?
cdritem1_15String1,000RecommendedWhen did he/ she (or spouse) retire?
cdritem1_15yString1,000RecommendedWhy did he/ she (or spouse) retire?
cdritem2_1IntegerRecommendedHow often does the subject know of the exact: Date of the Month1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_2IntegerRecommendedHow often does the subject know of the exact: Month1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_3IntegerRecommendedHow often does the subject know of the exact: Year1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_4IntegerRecommendedHow often does the subject know of the exact: Day of the Week1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_5IntegerRecommendedHow often does the subject know of the exact: Does the subject have difficulty with time relationships (when events happened in relation to each other)?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_6IntegerRecommendedHow often does the subject know of the exact: Can the subject find his/ her way about familiar streets?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_7IntegerRecommendedHow often does the subject know of the exact: How often does the subject know how to get from one place to another outside his/ her neighborhood?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem2_8IntegerRecommendedHow often does the subject know of the exact: How often can the subject find his/ her way about indoors?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem3_1IntegerRecommendedIn general, how would you rate the subject's abilities to: Solve problems at the present time?1;2;3;91= No loss; 2= Some loss; 3= Severe loss; 9= Unknown
cdritem3_2IntegerRecommendedIn general, how would you rate the subject's abilities to: Cope with small sums of money (e.g., make change, leave a small tip)?1;2;3;91= No loss; 2= Some loss; 3= Severe loss; 9= Unknown
cdritem3_3IntegerRecommendedIn general, how would you rate the subject's abilities to: Handle complicated financial or business transactions (e.g., balance check-book, pay bills)?1;2;3;91= No loss; 2= Some loss; 3= Severe loss; 9= Unknown
cdritem3_4IntegerRecommendedIn general, how would you rate the subject's abilities to: Handle a household emergency (e.g., plumbing leak, small fire)?1;2;31= As well as before; 2= Worse than before because of trouble thinking; 3= Worse than before (another reason)
cdritem3_4yString1,000RecommendedIn general, how would you rate the subject's abilities to: Handle a household emergency (e.g., plumbing leak, small fire)? Worse than before, specify reason.
cdritem3_5IntegerRecommendedIn general, how would you rate the subject's abilities to: Can the subject understand situations or explanations?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem3_6IntegerRecommendedIn general, how would you rate the subject's abilities to: Does the subject behave appropriately (i.e., in his/ her usual, premorbid manner) in social situations and interactions with other people?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
workingIntegerRecommendedAre you working now1;21=Yes; 2=Nocdritem4_1
cdritem4_2IntegerRecommendedDid memory or thinking problems contribute to the subject's decision to retire?0; 1; 80= No; 1= Yes; 8= NA
cdritem4_3IntegerRecommendedDoes the subject have significant difficulty in his/ her job because of problems with memory or thinking?1;2;3;8;91= Usually; 2= Sometimes; 3= Rarely or Never; 8= NA; 9= Unknown
cdritem4_4IntegerRecommendedDid the subject ever drive a car?0; 10= No; 1= Yes
cdritem4_4aIntegerRecommendedDoes the subject drive a car now?0; 10= No; 1= Yes
cdritem4_4a1IntegerRecommendedDoes the subject drive a car now? If no, is it because of memory or thinking problems?0; 10= No; 1= Yes
cdritem4_5IntegerRecommendedIf the subject is still driving, are there problems or risks because of poor thinking?0; 10= No; 1= Yes
cdritem4_5_1IntegerRecommendedIn the past 12 months, has the subject experienced any of the following - Accidents0; 10= No; 1= Yes
cdritem4_5_2IntegerRecommendedIn the past 12 months, has the subject experienced any of the following - Tickets0; 10= No; 1= Yes
cdritem4_5_3IntegerRecommendedIn the past 12 months, has the subject experienced any of the following - Getting Lost0; 10= No; 1= Yes
cdritem4_6IntegerRecommendedIs the subject able to independently shop for their needs?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem4_7IntegerRecommendedIs the subject able to independently carry out activities outside the home?1;2;3;91= Usually; 2= Sometimes; 3= Rarely or Never; 9= Unknown
cdritem4_8IntegerRecommendedIs the subject taken to social functions outside of a family home?0; 10= No; 1= Yes
cdritem4_8yString1,000RecommendedIs the subject taken to social functions outside of a family home? If no, why not?
cdritem4_9IntegerRecommendedWoulda casual observer of the subject's behavior think the subject was ill?0; 10= No; 1= Yes
cdritem4_10IntegerRecommendedIf in nursing home, does the subject participate well in social functions (thinking)?0; 10= No; 1= Yes
cdritem1aString1,000RecommendedWhat changes have occurred in his/ her abilities to perform household chores?
cdritem1bString1,000RecommendedWhat can he/she still do well?
cdritem2aString1,000RecommendedWhat changes have occurred in his/ her abilities to perform hobbies?
cdritem2bString1,000RecommendedWhat can he/ she still do well?
cdritem3String1,000RecommendedIf in nursing home, what can he/ she no longer do well (H and H)?
cdritem5_1IntegerRecommendedAbility to perform household tasks0::10= No loss; 1= Severe Loss
cdritem5_1yString1,000RecommendedAbility to perform household tasks - please describe ability
cdritem5_2IntegerRecommendedIs the subject able to perform household chores at the level of (Informant does not need to be asked directly)0::40= Normal function in usual activities; 1= Functions in usual activities but not at usual level; 2= Functions independently in some activities (operates appliances, e.g., vacuum cleaner; prepares simple meals); 3= Functions in limited activities only (with some supervision, washes dishes with acceptable cleanliness; sets table); 4= No meaningful function (performs simple activities, such as making a bed, only with much supervision)
cdritem6_1IntegerRecommendedWhat is your estimate of subject's mental ability in the following areas: Dressing (Blessed)0::30= Unaided; 1= Occasionally misplaced buttons, etc.; 2= Wrong sequence, commonly forgotten items; 3= Unable to dress
cdritem6_2IntegerRecommendedWhat is your estimate of subject's mental ability in the following areas: Washing, grooming0::30= Unaided; 1= Needs prompting; 2= Sometimes needs help; 3= Always or nearly always needs help
cdritem6_3IntegerRecommendedWhat is your estimate of subject's mental ability in the following areas: Eating habits0::30= Cleanly; proper utensils; 1= Messily; spoon; 2= Simple solids; 3= Has to be fed completely
cdritem6_4IntegerRecommendedWhat is your estimate of subject's mental ability in the following areas: Sphincter control (Blessed)0::30= Normal, complete control; 1= Occasionaly wets bed / clothes; 2= Frequently wets bed / clothes; 3= Doubly incontinent
cdritem7_1IntegerRecommendedDo you have problems with memory or thinking?0; 1; 90= No; 1= Yes; 9= Unknown
cdritem7_2_1FloatRecommendedA few moments ago your (study partner) told me a few recent experiences you had. Will you tell me something about those? Within 1 week0::10= Largely Incorrect; 1= Largely Correct
cdritem7_2_2FloatRecommendedA few moments ago your (study partner) told me a few recent experiences you had. Will you tell me something about those? Within 1 month0::10= Largely Incorrect; 1= Largely Correct
cdritem7_3_1IntegerRecommendedI will give you a name and address to remember for a few minutes. Repeat this name and address after me: (Repeat until the phrase is correctly repeated or to a maximum of three trials). Max number of elements repeated
cdritem7_3_2IntegerRecommendedI will give you a name and address to remember for a few minutes. Repeat this name and address after me: (Repeat until the phrase is correctly repeated or to a maximum of three trials). Number of trials required
cdritem7_4IntegerRecommendedRepeat the name and address I asked you to remember: Number of elements recalled
mmse01IntegerRecommendedWhat is today's date?0;10=Incorrect; 1=Correctcdritem8_1
cdritem8_2IntegerRecommendedWhat day of the week is it?0; 10= Incorrect; 1= Correct
cdritem8_3IntegerRecommendedWhat is the month?0; 10= Incorrect; 1= Correct
cdritem8_4IntegerRecommendedWhat is the year?0; 10= Incorrect; 1= Correct
mmse06IntegerRecommendedWhat is the name of this hospital (clinic, place)?0;10=Incorrect; 1=Correctcdritem8_5
mmse08IntegerRecommendedWhat town or city are we in?0;10=Incorrect; 1=Correctcdritem8_6
cdritem8_7IntegerRecommendedWhat time is it?0; 10= Incorrect; 1= Correct
cdritem8_8IntegerRecommendedDoes the subject know who the informant is (in your judgment)?0; 10= Incorrect; 1= Correct
cdritem9_1IntegerRecommendedHow are these things alike? turnip.....cauliflower0::20= vegetables; 1= edible foods, living things, can be cooked, etc.; 2= answers not pertinent; differences; buy them
cdritem9_2IntegerRecommendedHow are these things alike? desk.....bookcase0::20= furniture, office furniture; both hold books; 1= wooden, legs; 2= not pertinent, differences
cdritem9_3IntegerRecommendedWhat is the difference between these things? lie.....mistake0::20= one deliberate, one unintentional; 1= one bad the other good - or explains only one; 2= anything else, similarities
cdritem9_4IntegerRecommendedWhat is the difference between these things? river.....canal0; 10= natural - artificial; 1= anything else
cdritem9_5IntegerRecommendedHow many nickels in a dollar?0; 10= Incorrect; 1= Correct
cdritem9_6IntegerRecommendedHow many quarters in $6.75?0; 10= Incorrect; 1= Correct
cdritem9_7IntegerRecommendedSubtract 3 from 20 and keep subtracting 3 from each new number?0; 10= Incorrect; 1= Correct
cdritem9_8IntegerRecommendedUpon arriving in a strange city, how would you locate a friend that you wished to see?0::20= try the telephone book, go to the courthouse for a directory; call a mutual friend; 1= call the police, call operator (usually will not give address); 2= no clear response
cdritem9_9IntegerRecommendedSubject's assessment of disability and station in life and understanding of why she/ she is present at the examination (may have covered, but rate here)1::31= Good Insight; 2= Partial Insight; 3= Little Insight
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

Please email the The NDA Help Desk with any questions.

Distribution for DataStructure: cdr01 and Element:
Chart Help

Filters enable researchers to view the data shared in NDA before applying for access or for selecting specific data for download or NDA Study assignment. For those with access to NDA shared data, you may select specific values to be included by selecting an individual bar chart item or by selecting a range of values (e.g. interview_age) using the "Add Range" button. Note that not all elements have appropriately distinct values like comments and subjectkey and are not available for filtering. Additionally, item level detail is not always provided by the research community as indicated by the number of null values given.

Filters for multiple data elements within a structure are supported. Selections across multiple data structures will be supported in a future version of NDA.