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Protocol - General Distress Screener

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Protocol Name from Source:

The K6

Availability:

Publicly available

Description:

The K6 is a screening scale consisting of six questions to assess nonspecific psychological distress during the last 30 days. These questions ask about the respondent’s feelings and how these feelings have affected their normal activities and also about whether or not the respondent has sought professional help.

Protocol:

The following questions ask about how you have been feeling during the past 30 days. For each question, please indicate the answer that best describes how often you had this feeling.

1. During the past 30 days, about how often did you feel...

1.a. ...nervous?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

1.b. ...hopeless?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

1.c. ...restless or fidgety?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

1.d. ...so depressed that nothing could cheer you up?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

1.e. ...that everything was an effort?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

1.f. ...worthless?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

2. The last six questions asked about feelings that might have occurred during the past 30 days. Taking them altogether, did these feelings occur More often in the past 30 days than is usual for you, about the same as usual, or less often than usual? (If you never have any of these feelings, circle response option "4.")

[ ] 1 A lot (More often than usual)

[ ] 2 Some (More often than usual)

[ ] 3 A little (More often than usual)

[ ] 4 About the same as usual

[ ] 5 A little (Less often than usual)

[ ] 6 Some (Less often than usual)

[ ] 7 A lot (Less often than usual)

The next few questions are about how these feelings may have affected you in the past 30 days. You need not answer these questions if you answered "None of the time" to all of the six questions about your feelings.

3. During the past 30 days, how many days out of 30 were you totally unable to work or carry out your normal activities because of these feelings?

_______ (Number of days)

4. Not counting the days you reported in response to 3, how many days in the past 30 were you able to do only half or less of what you would normally have been able to do, because of these feelings?

_______ (Number of days)

5. During the past 30 days, how many times did you see a doctor or other health professional about these feelings?

_______ (Number of times)

6. During the past 30 days, how often have physical health problems been the main cause of these feelings?

[ ] 1 All of the time

[ ] 2 Most of the time

[ ] 3 Some of the time

[ ] 4 A little of the time

[ ] 5 None of the time

Scoring

Code question 1.a through 1.f 0-4 and sum to convert the K6 to a 0-24 scale. A cut point of 13 or greater is recommended to assess the prevalence of SMI (serious mental illness). Please see Kessler et al. (2002) for further information on scoring the K6.

Personnel and Training Required

None

Equipment Needs

None

Requirements

Requirement CategoryRequired
Average time of greater than 15 minutes in an unaffected individualNo
Major equipmentNo
Specialized requirements for biospecimen collectionNo
Specialized trainingNo

Mode of Administration

Self-administered

Life Stage:

Adult

Specific Instructions:

None

Research Domain Information

Release Date:

May 12, 2010

Definition

A measure to assess symptoms of nonspecific psychological distress.

Purpose

This measure can be used as a covariate or to control for wide range of mental disorders by measuring an individual’s symptoms of nonspecific psychological distress.

Selection Rationale

The K6 was vetted against similar protocols and selected because it is a validated, brief, self-report instrument that is low burden for investigators and respondents. Normative values are available from several large population-based studies of mental and physical disorders.

Language

Arabic, Dutch, English, German, Hebrew, Italian, Japanese, Mandarin Chinese, Portugese, Spanish

Standards

StandardNameIDSource
Common Data Elements (CDE)Person Distress Assessment Score3075479CDE Browser
Logical Observation Identifiers Names and Codes (LOINC)General distress screener proto62746-3LOINC

Process and Review

[link[phenx.org/node/103|Expert Review Panel 4]] (ERP 4) reviewed the measures in the Neurology, Psychiatric, and Psychosocial domains.

Guidance from ERP 4 included the following:

· No changes

Source

Kessler, R. C., Andrews, G., Colpe, L. J., Hiripi, E., Mroczek, D. K., Normand, S.-L. T., Walters, E. E., & Zaslavsky, A. (2002). Short screening scales to monitor population prevalences and trends in nonspecific psychological distress. Psychological Medicine, 32(6), 959-976.

General References

Scoring:

Kessler, R. C., Barker, P. R., Colpe, L. J., Epstein, J. F., Gfroerer, J. C., Hiripi, E., Howes, M. J, Normand, S-L. T., Manderscheid, R. W., Walters, E. E., & Zaslavsky, A. M. (2003). Screening for serious mental illness in the general population. Archives of General Psychiatry, 60(2), 184-189.

Definition of General Psychiatric Distress:

Leising, D., Grande, T., & Faber, R. (2009). The Toronto Alexithymia Scale (TAS-20): A measure of general psychological distress. Journal of Research in Personality, 43(4), 707-710.

Protocol ID:

121301

Variables:

Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX121301_NervousPX121301010100During the past 30 days, about how often did you feel... nervous?4N/A
PX121301_HopelessPX121301010200During the past 30 days, about how often did you feel... hopeless ?4N/A
PX121301_RestlessPX121301010300During the past 30 days, about how often did you feel... restless or fidgety?4N/A
PX121301_DepressedPX121301010400During the past 30 days, about how often did you feel... so depressed that nothing could cheer you up?4N/A
PX121301_Everything_An_EffortPX121301010500During the past 30 days, about how often did you feel... that everything was an effort?4N/A
PX121301_WorthlessPX121301010600During the past 30 days, about how often did you feel... worthless?4N/A
PX121301_Frequency_Feelings_Past_Thirty_DaysPX121301020000The last six questions asked about feelings that might have occurred during the past 30 days. Taking them altogether, did these feelings occur more often in the past 30 days than is usual for you, about the same as usual, or less often than usual? (If you never have any of these feelings, circle response option "4.")4N/A
PX121301_Number_Days_WorkedPX121301030000During the past 30 days, how many days out of 30 were you totally unable to work or carry out your normal activities because of these feelings?4N/A
PX121301_Number_Days_Do_Only_HalfPX121301040000Not counting the days you reported in response to 3, how many days in the past 30 were you able to do only half or less of what you would normally have been able to do, because of these feelings?4N/A
PX121301_Number_Times_See_DoctorPX121301050000During the past 30 days, how many times did you see a doctor or other health professional about these feelings?4N/A
PX121301_Physical_Health_Cause_ProblemsPX121301060000During the past 30 days, how often have physical health problems been the main cause of these feelings?4N/A