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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.
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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.

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NIMH Data Archive
NDA ABCD CCF OAI NIAAADA AMP SCZ HEAL

Patient Health Questionnaire - 9

7,755 Shared Subjects

The Patient Health Questionnaire (PHQ)-9 is the Major Depressive Disorder module of the full PHQ. Participants are asked to rate their behavior during the past two weeks on a scale from 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
Clinical Assessments
Depression
05/05/2021
cde_phq901
02/08/2023
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_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.
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported
phq9_1 Integer Required Over the last two weeks, how often have you been bothered by having little interest or pleasure in doing things? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_2 Integer Required Over the last two weeks, how often have you been bothered by feeling down, depressed, or hopeless? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_3 Integer Required Over the last two weeks, how often have you been bothered by trouble falling or staying asleep, or sleeping too much? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_4 Integer Required Over the last two weeks, how often have you been bothered by feeling tired or having little energy? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_5 Integer Required Over the last two weeks, how often have you been bothered by poor appetite or overeating? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_6 Integer Required Over the last two weeks, how often have you been bothered by feeling bad about yourself or that you are a failure or have let yourself or your family down? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_7 Integer Required Over the last two weeks, how often have you been bothered by trouble concentrating on things, such as reading the newspaper or watching television? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_8 Integer Required Over the last two weeks, how often have you been bothered by moving or speaking so slowly that other people could have noticed? Or the opposite - being so fidgety or restless that you have been moving around a lot more than usual? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_9 Integer Required Over the last two weeks, how often have you been bothered by thoughts that you would be better off dead or off hurting yourself in some way? 0::3;-9 0 = Not at all; 1 = Several days; 2 = More than half the days; 3 = Nearly every day; -9 = Missing
phq9_10 Integer Required In what language did you collect the data? 1::82 1 = English; 2 = Africaans for South Africa; 3 = Arabic for Israel; 4 = Arabic for Tunisia; 5 = Assamese for India; 6 = Bengali for India; 7 = Bulgarian for Bulgaria; 8 = Cebuano for the Philippines; 9 = Cebuano-Davao for the Philippines; 10 = Chinese for Singapore; 11 = Croatian for Croatia; 12 = Czech for the Czech Republic; 13 = Danish for Denmark; 14 = Dutch for Belgium; 15 = Dutch for the Netherlands; 16 = Estonian for Estonia; 17 = Filipino for the Philippines; 18 = Finnish for Finland; 19 = French for Belgium; 20 = French for Canada; 21 = French for France; 22 = French for Switzerland; 23 = French for Tunisia; 24 = German for Austria; 25 = German for Belgium; 26 = German for Germany; 27 = German for Switzerland; 28 = Greek for Greece; 29 = Gujarati for India; 30 = Haitian Creole; 31 = Hebrew for Israel; 32 = Hiligaynon for the Philippines; 33 = Hindi for India; 34 = Hungarian for Hungary; 35 = Indonesian for Indonesia; 36 = Italian for Italy; 37 = Italian for Switzerland; 38 = Japanese for Japan; 39 = Kannada for India; 40 = Korean for Korea; 41 = Latvian for Latvia; 42 = Lithuanian for Lithuania; 43 = Malay for Malaysia; 44 = Malay for Singapore; 45 = Malayalam for India; 46 = Mandarin for Malaysia; 47 = Marathi for India; 48 = Norwegian for Norway; 49 = Oriya for India; 50 = Polish for Poland; 51 = Portuguese for Brazil; 52 = Portuguese for Portugal; 53 = Punjabi for India; 54 = Romanian for Romania; 55 = Russian for Estonia; 56 = Russian for Israel; 57 = Russian for Latvia; 58 = Russian for Lithuania; 59 = Russian for Russia; 60 = Russian for Ukraine; 61 = Serbian for Serbia; 62 = Simplified Chinese for Mainland China; 63 = Slovakian for Slovakia; 64 = Spanish for Chile; 65 = Spanish for Columbia; 66 = Spanish for Mexico; 67 = Spanish for Peru; 68 = Spanish for Puerto Rico; 69 = Spanish for Spain; 70 = Spanish for the United States; 71 = Swahili for Africa; 72 = Swedish for Finland; 73 = Swedish for Sweden; 74 = Tamil for India; 75 = Tamil for Singapore; 76 = Telugu for India; 77 = Thai for Thailand; 78 = Traditional Chinese for Hong Kong; 79 = Traditional Chinese for Taiwan; 80 = Turkish for Turkey; 81 = Ukrainian for Ukraine; 82 = Nepali
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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