Protocol - Impairment - Adult

Description

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is a 12-question, self-administered questionnaire and generic assessment instrument for health and disability that covers six domains: Cognition (items 3 and 6), Mobility (items 1 and 7), Self-care (items 8 and 9), Getting Along (items 10 and 11), Life Activities (items 2 and 12), and Participation (items 4 and 5). Items are rated from "None," "Mild," "Moderate," "Severe," to "Extreme or cannot do," indicating difficulty over the past month.

Specific Instructions

None

Availability

Available

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Protocol

WHODAS 2.0

This questionnaire asks about difficulties due to health conditions. Health conditions include diseases or illnesses, other health problems that may be short or long lasting, injuries, mental or emotional problems, and problems with alcohol or drugs.

Think back over the past 30 days and answer these questions, thinking about how much difficulty you had doing the following activities. For each question, please circle only one response.

In the past 30 days, how much difficulty did you have in:
S1	Standing for long periods such as 30 minutes?	None	Mild	Moderate	Severe	Extreme or cannot do
S2	Taking care of your household responsibilities?	None	Mild	Moderate	Severe	Extreme or cannot do
S3	Learning a new task, for example, learning how to get to a new place?	None	Mild	Moderate	Severe	Extreme or cannot do
S4	How much of a problem did you have joining in community activities (for example, festivities, religious, or other activities) in the same way as anyone else can?	None	Mild	Moderate	Severe	Extreme or cannot do
S5	How much have you been emotionally affected by your health problems?	None	Mild	Moderate	Severe	Extreme or cannot do
S6	Concentrating on doing something for ten minutes?	None	Mild	Moderate	Severe	Extreme or cannot do
S7	Walking a long distance such as a kilometre [or equivalent]?	None	Mild	Moderate	Severe	Extreme or cannot do
S8	Washing your whole body?	None	Mild	Moderate	Severe	Extreme or cannot do
S9	Getting dressed?	None	Mild	Moderate	Severe	Extreme or cannot do
S10	Dealing with people you do not know?	None	Mild	Moderate	Severe	Extreme or cannot do
S11	Maintaining a friendship?	None	Mild	Moderate	Severe	Extreme or cannot do
S12	Your day-to-day work?	None	Mild	Moderate	Severe	Extreme or cannot do

H1	Overall, in the past 30 days, how many days were these difficulties present?	Record number of days ____
H2	In the past 30 days, for how many days were you totally unable to carry out your usual activities or work because of any health condition?	Record number of days ____
H3	In the past 30 days, not counting the days that you were totally unable, for how many days did you cut back or reduce your usual activities or work because of any health condition?	Record number of days ____

This completes the questionnaire. Thank you.

Scoring:

There are two basic options for computing the summary scores for the WHODAS 2.0 short version.

Simple:

The scores assigned to each of the items-"none" (1), "mild" (2) "moderate" (3), "severe" (4) and "extreme" (5) -are summed. This method is referred to as simple scoring because the scores from each of the items are simply added up without recoding or collapsing of response categories; thus, there is no weighting of individual items. This approach is practical to use as a hand-scoring approach and may be the method of choice in busy clinical settings or in paper-pencil interview situations. As a result, the simple sum of the scores of the items across all domains constitutes a statistic that is sufficient to describe the degree of functional limitations.

Complex:

The more complex method of scoring is called "item-response-theory" (IRT)-based scoring. It takes into account multiple levels of difficulty for each WHODAS 2.0 item. It takes the coding for each item response as "none," "mild," "moderate," "severe," and "extreme" separately and then uses an algorithm to determine the summary score by differentially weighting the items and the levels of severity. The SPSS algorithm is available from WHO. The scoring has three steps:

• Step 1 - Summing of recoded item scores within each domain.

• Step 2 - Summing of all six domain scores.

• Step 3 - Converting the summary score into a metric ranging from 0 to 100 (where 0 = no disability; 100 = full disability).

Personnel and Training Required

None

Equipment Needs

None

Requirements

Requirement Category	Required
Major equipment	No
Specialized training	No
Specialized requirements for biospecimen collection	No
Average time of greater than 15 minutes in an unaffected individual	No

Mode of Administration

Self-administered questionnaire

Lifestage

Adult

Participants

Adults, ages 18 and older

Selection Rationale

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is a brief, self-administered questionnaire with good psychometric properties that can be used across all diseases (including mental, neurological, and addictive disorders), is applicable in both clinical and general population settings, and is applicable across different cultures. The WHODAS 2.0 produces standardized disability levels and profiles and has a direct conceptual link to the International Classification of Functioning, Disability and Health (ICF).

Language

English, Spanish, Other languages available at source

Standards

Standard	Name	ID	Source
Human Phenotype Ontology	Behavioral abnormality	HP:0000708	HPO
caDSR Form	PhenX PX610102 - Impairment Adult	6230946	caDSR Form

Derived Variables

None

Process and Review

Not applicable.

Protocol Name from Source

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0)

Source

Ustün, T. B., Chatterji, S., Kostanjsek, N., Rehm, J., Kennedy, C., Epping-Jordan, J., Saxena, S., von Korff, M., & Pull, C.; WHO/NIH Joint Project. (2010). Developing the World Health Organization Disability Assessment Schedule 2.0. Bulletin of the World Health Organization, 88(11), 815-823.

The WHODAS 2.0 is available for download from the World Health Organization website at www.who.int/classifications/icf/whodasii/en/.

General References

Andrews, G., Kemp, A., Sunderland, M., Von Korff, M., & Ustun, T.B. (2009). Normative data for the 12-item WHO Disability Assessment Schedule 2.0. PLoS One, 4(12), e8343.

Downing, N. R., Kim, J. I., Williams, J. K., Long, J. D., Mills, J. A., & Paulsen, J. S.; PREDICT‑HD Investigators and Coordinators of the Huntington Study Group. (2014) WHODAS 2.0 in prodromal Huntington disease: Measures of functioning in neuropsychiatric disease. European Journal of Human Genetics, 22(8), 958-963.

Konecky, B., Meyer, E. C., Marx, B. P., Kimbrel, N. A., & Morissette, S. B. (2014). Using the WHODAS 2.0 to assess functional disability associated with DSM-5 mental disorders. American Journal of Psychiatry, 171(8), 818-820.

Protocol ID

610102

Variables

Export Variables

Variable Name	Variable ID	Variable Description	dbGaP Mapping
PX610102_Impairment_Concentrating_Ten_Minutes
	PX610102060000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Concentrating on doing something for ten minutes? show less	N/A
PX610102_Impairment_Dealing_New_People
	PX610102100000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Dealing with people you do not know? show less	N/A
PX610102_Impairment_Difficult_Days_Past_Month
	PX610102130000	Overall, in the past 30 days, how many days more were these difficulties present? show less	N/A
PX610102_Impairment_Emotionally_Affected
	PX610102050000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. How much have you been emotionally affected by your health problems? show less	Variable Mapping
PX610102_Impairment_Getting_Dressed
	PX610102090000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Getting dressed? show less	Variable Mapping
PX610102_Impairment_Household_Responsibilities
	PX610102020000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Taking care of your household responsibilities? show less	N/A
PX610102_Impairment_Joining_Community_Activities
	PX610102040000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. How much of a problem did you have joining in community activities (for example, festivities, religious, or other show less	Variable Mapping
PX610102_Impairment_Learning_New_Task
	PX610102030000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Learning a new task, for example, learning how to get to a new place? show less	N/A
PX610102_Impairment_Maintaining_Friendship
	PX610102110000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Maintaining a friendship? show less	N/A
PX610102_Impairment_Reduced_Days_Past_Month
	PX610102150000	In the past 30 days, not counting the days more that you were totally unable, for how many days did you cut back or reduce your usual activities or work because of any health condition? show less	N/A
PX610102_Impairment_Standing_Long_Periods
	PX610102010000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Standing for long periods such as 30 minutes? show less	N/A
PX610102_Impairment_Unable_Days_Past_Month
	PX610102140000	In the past 30 days, for how many days were more you totally unable to carry out your usual activities or work because of any health condition? show less	Variable Mapping
PX610102_Impairment_Walking_Long_Distances
	PX610102070000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Walking a long distance such as a kilometre [or equivalent]? show less	N/A
PX610102_Impairment_Washing_Self
	PX610102080000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Washing your whole body? show less	N/A
PX610102_Impairment_Work
	PX610102120000	Think back over the past 30 days and answer more these questions, thinking about how much difficulty you had doing the following activities. Your day-to-day work? show less	N/A

Mental Health Research Core: Tier 1

Measure Name

Impairment

Release Date

December 5, 2014

Definition

A self-administered questionnaire for assessing impairment and disability.

Purpose

This measure is used to assess impairment and difficulties in performing usual activities due to a variety of health conditions and diseases, including mental or emotional problems.

Keywords

behavior, General Disability, disability, cognition, mobility, Self-care, Getting along, Life activities, Participation, Function, quality of life, Columbia Impairment Scale, CIS, adolescent, Parents, Siblings, school, home

Measure Protocols

Protocol ID	Protocol Name
610101	Impairment - Adolescent
610102	Impairment - Adult

Publications

There are no publications listed for this protocol.

Mapping for PX610102_Impairment_Emotionally_Affected

dbGAP Study	dbGAP Variable	dbGAP Variable Description
The Detroit Neighborhood Health Study (DNHS)	phv00174468	Now thinking about your mental health which includes stress depression and problems with emotions for how many days during the past 30 days was your mental health not good?

Mapping for PX610102_Impairment_Getting_Dressed

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Cardiovascular Health Study (CHS) Cohort	phv00103724	Dressing yourself: How much difficulty
Cardiovascular Health Study (CHS) Cohort	phv00103775	Dressing yourself: How much difficulty
Women's Health Initiative	phv00111647	Can you dress and undress yourself
Women's Health Initiative	phv00169499	Can you dress and undress yourself
Women's Health Initiative	phv00192326	Can you dress and undress yourself

Mapping for PX610102_Impairment_Joining_Community_Activities

dbGAP Study	dbGAP Variable	dbGAP Variable Description
Cardiovascular Health Study (CHS) Cohort	phv00198980	10 health limited social activities
OPPERA baseline case-control study of chronic TMJD	phv00223763	SF12 Health interfered with social activities

Mapping for PX610102_Impairment_Unable_Days_Past_Month

dbGAP Study	dbGAP Variable	dbGAP Variable Description
The Detroit Neighborhood Health Study (DNHS)	phv00174469	During the past 30 days for about how many days did poor physical or mental health keep you from doing your usual activities such as self-care work or recreation?

Protocol - Impairment - Adult

Related Protocols:

Description

Specific Instructions

Availability

Protocol

Personnel and Training Required

Equipment Needs

Requirements

Mode of Administration

Lifestage

Participants

Selection Rationale

Language

Standards

Derived Variables

Process and Review

Protocol Name from Source

Source

General References

Protocol ID

Variables

Measure Name

Release Date

Definition

Purpose

Keywords

Measure Protocols

Publications