National Health and Nutrition Examination Survey

2013-2014 Data Documentation, Codebook, and Frequencies

Mental Health - Depression Screener (DPQ_H)

Data File: DPQ_H.xpt

First Published: March 2016

Last Revised: NA

Component Description

A nine-item depression screening instrument, the Patient Health Questionnaire (Kroenke and Spitzer, 2002; Kroenke et al., 2001) was administered to determine the frequency of depression symptoms over the past 2 weeks. A follow-up question assessed the overall impairment of the symptoms. Response categories for the nine-item instrument "not at all," "several days," "more than half the days," and "nearly every day" were given a point ranging from 0 to 3. The instrument incorporates DSM-IV depression diagnostic criteria (Spitzer et al.1999). The variable prefix is DPQ.

Eligible Sample

Mobile Examination Center (MEC) participants 12 years and older were eligible. Only data from participants aged 18 and older are included in this data file. Participants requiring a proxy were not eligible because of the sensitive nature of the questions.

Interview Setting and Mode of Administration

The questions were asked at the MEC, by trained interviewers, using the Computer-Assisted Personal Interview (CAPI) system as part of the MEC interview. Proxy respondents were not permitted for this section.

Quality Assurance & Quality Control

The CAPI system is programmed with built-in consistency checks to reduce data entry errors.

Data Processing and Editing

Edits were made to ensure completeness, consistency and analytic usefulness of the data.

Analytic Notes

A total score is based on the sum of the points in each item ranging from 0 to 27. Major depression and depression severity can be assessed using pre-defined cut-points References).

Data for youth aged 12-17 years are available through the NCHS Research Data Center only.

The NHANES full sample 2-Year MEC Exam Weights (WTMEC2YR) should be used to analyze the 2013-2014.

Please refer to the NHANES Analytic Guidelines and the on-line NHANES Tutorial for further details on the use of sample weights and other analytic issues.

References

Kroenke K, Spitzer RL, William JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med 2001; 16: 1606-13.
Kroenke K, Spitzer RL. The PHQ-9: a new depression and diagnostic severity measure. Psych Annals 2002; 32:509-21.
Spitzer RL, Kroenke K, Williams JB. Validation and utility of a self-report version of Prime MD: the PHQ primary care study. JAMA 1999; 282: 1737-44.

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:: SEQN
SAS Label:: Respondent sequence number
English Text:: Respondent sequence number.
Target:: Both males and females 18 YEARS - 150 YEARS

DPQ010 - Have little interest in doing things

Variable Name:: DPQ010
SAS Label:: Have little interest in doing things
English Text:: Over the last 2 weeks, how often have you been bothered by the following problems: little interest or pleasure in doing things? Would you say...
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	3976	3976
1	Several days	881	4857
2	More than half the days	293	5150
3	Nearly every day	242	5392
7	Refused	1	5393
9	Don't know	5	5398
.	Missing	526	5924

DPQ020 - Feeling down, depressed, or hopeless

Variable Name:: DPQ020
SAS Label:: Feeling down, depressed, or hopeless
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling down, depressed, or hopeless?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	4071	4071
1	Several days	903	4974
2	More than half the days	214	5188
3	Nearly every day	202	5390
7	Refused	3	5393
9	Don't know	3	5396
.	Missing	528	5924

DPQ030 - Trouble sleeping or sleeping too much

Variable Name:: DPQ030
SAS Label:: Trouble sleeping or sleeping too much
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] trouble falling or staying asleep, or sleeping too much?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	3416	3416
1	Several days	1127	4543
2	More than half the days	350	4893
3	Nearly every day	501	5394
7	Refused	1	5395
9	Don't know	0	5395
.	Missing	529	5924

DPQ040 - Feeling tired or having little energy

Variable Name:: DPQ040
SAS Label:: Feeling tired or having little energy
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling tired or having little energy?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	2650	2650
1	Several days	1829	4479
2	More than half the days	423	4902
3	Nearly every day	492	5394
7	Refused	1	5395
9	Don't know	0	5395
.	Missing	529	5924

DPQ050 - Poor appetite or overeating

Variable Name:: DPQ050
SAS Label:: Poor appetite or overeating
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] poor appetite or overeating?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	4036	4036
1	Several days	832	4868
2	More than half the days	278	5146
3	Nearly every day	247	5393
7	Refused	0	5393
9	Don't know	2	5395
.	Missing	529	5924

DPQ060 - Feeling bad about yourself

Variable Name:: DPQ060
SAS Label:: Feeling bad about yourself
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling bad about yourself - or that you are a failure or have let yourself or your family down?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	4449	4449
1	Several days	620	5069
2	More than half the days	154	5223
3	Nearly every day	167	5390
7	Refused	0	5390
9	Don't know	4	5394
.	Missing	530	5924

DPQ070 - Trouble concentrating on things

Variable Name:: DPQ070
SAS Label:: Trouble concentrating on things
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] trouble concentrating on things, such as reading the newspaper or watching TV?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	4423	4423
1	Several days	586	5009
2	More than half the days	193	5202
3	Nearly every day	189	5391
7	Refused	1	5392
9	Don't know	2	5394
.	Missing	530	5924

DPQ080 - Moving or speaking slowly or too fast

Variable Name:: DPQ080
SAS Label:: Moving or speaking slowly or too fast
English Text:: [Over the last 2 weeks, how often have you been bothered by the following problems:] 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?
English Instructions:: HANDCARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	4786	4786
1	Several days	367	5153
2	More than half the days	134	5287
3	Nearly every day	104	5391
7	Refused	1	5392
9	Don't know	2	5394
.	Missing	530	5924

DPQ090 - Thought you would be better off dead

Variable Name:: DPQ090
SAS Label:: Thought you would be better off dead
English Text:: Over the last 2 weeks, how often have you been bothered by the following problems: Thoughts that you would be better off dead or of hurting yourself in some way?
English Instructions:: HAND CARD DPQ1
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all	5205	5205
1	Several days	122	5327
2	More than half the days	31	5358
3	Nearly every day	32	5390
7	Refused	1	5391
9	Don't know	2	5393
.	Missing	531	5924

DPQ100 - Difficulty these problems have caused

Variable Name:: DPQ100
SAS Label:: Difficulty these problems have caused
English Text:: How difficult have these problems made it for you to do your work, take care of things at home, or get along with people?
Target:: Both males and females 18 YEARS - 150 YEARS

Code or Value	Value Description	Count	Cumulative
0	Not at all difficult,	2693	2693
1	Somewhat difficult,	771	3464
2	Very difficult,	138	3602
3	Extremely difficult	69	3671
7	Refused	1	3672
9	Don't know	2	3674
.	Missing	2250	5924

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