Both questionnaires can be completed by the patient, clinicians, friends, andor relatives. Validation of the who disability assessment schedule whodas 2. The 12item world health organization disability assessment. Dsm5 indicates that simple scoring may be the method of. Respondents are asked to state the level of difficulty experienced taking into consideration how they usually do the activity, including the use of any assistive devices andor the help of a person. This study aimed at assessing the psychometric properties of the persian version of the 12item whodas ii among trauma patients.
This is in response to feedback received, and will not change the final score provided that you use the correct scale for the correct method. To compare scores on the 36 item who disability assessment schedule 2. The resulting shortform survey instrument provides a solution to the problem faced by many investigators who must restrict survey length. Normative data for the 12 item who disability assessment schedule 2.
However, several challenges emerge in attempting to use whodas 2. Both the 36 item total scores and those scores calculated considering only the 12 items that integrate the abridged whodas 2. 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. Step 3 converting the summary score into a metric ranging from 0 to 100 where 0 no disability. World health organization disability assessment schedule ii. Receiver operating characteristic roc curve analysis showed that a score of 23 on whodas 2. If respondents report that it is not due to a health condition, then code the item na. Sensitivity of 12 item whodas aim 3 we compared the companion 12 item whodas total to the tfc and companion 36 item whodas total, focusing on companions because they better detected longitudinal. Page 1 of 2 12 item, selfadministered 12 item version, selfadministered this questionnaire asks about difficulties due to health conditions. Specifically, we attempted to replicate the sixfactor structure of the whodas 2.
Page 2 of 2 12 item, selfadministered 12 self this completes the questionnaire. All items relate to individuals difficulties in functioning within past 30 days. Validation of the who disability assessment schedule. In the past 30 days, how much difficulty did you have in. It is based on the international classification of functioning, disability and health icf. It was hypothesized that a simple sum method of scoring the whodas 2. Client name client age gender date this questionnaire asks about. Part 2 practical aspects of administering and scoring whodas 2. Correlation analysis showed that changes in the womac and 12 item whodas 2. Participants were consecutively recruited from the brain and mind centre in new south wales, australia. Step 1 summing of recoded item scores within each domain. In this study, we sought to find out the cutoff point in whodas 2. The more complex method of scoring is called itemresponsetheory irtbased scoring.
The scores assigned to each of the itemsnone 1, mild 2, moderate 3, severe 4, and. There are two basic options for computing the summary scores for the whodas 2. Complicationsduring pregnancy, childbirth, and the puerperium increase longterm whodas 36 scores, demonstratinga persistent impact on functioning. If respondents report that the lack of washing is not due to a health condition, then code the item na for not applicable. Comparison of the responsiveness of the womac and the 12. Pdf normative data for the 12 item who disability assessment. Thus, the purpose of this manuscript is to examine the reliability and construct validity of the 12 item world health organization disability assessment schedule 2. The 12item whodas ii is widely used for assessing disability among different populations. Normative data for the 12 item who disability assessment. This scoring method involved recoding specific items before converting the total score into a percentage.
Pdf validation of the who disability assessment schedule. This study aimed at assessing the psychometric properties of the persian version of the 12 item whodas ii among trauma patients. In this case, ask whether this situation is due to a health condition as defined by whodas 2. The 12item whodas ii was administered by the general practitioners during the. We report the overall factor structure and the distribution of scores and normative data means and sds for people with any physical disorder, any mental disorder.
Pdf the 12item selfreport world health organization. The 12 item whodas includes two items from each domain, with a total score computed as the sum of the 12 items. Results were very similar table 3 when analyzed for different percentiles. May 23, 2018 to evaluate the performance of the 12. The sum score for global disability therefore ranges from 0 no disability to 48 complete disability. The scores assigned to each of the items none 1, mild 2, moderate 3, severe 4. The scores assigned to each of the items none 1, mild 2, moderate 3, severe 4, and. Dec 01, 20 whodas scoring test jeffrey ashby, phd, abpp. This report provides normative data from a population survey using the 12 item version of the whodas 2.
It takes the coding for each item response as none, mild, moderate, severe, and extreme separately, and then uses a computer to. It takes into account multiple levels of difficulty for each whodas 2. Reference ranges of the who disability assessment schedule. Extended report assessment of disability with the world. If respondents report that it is due to a health condition, then code the item 5 for extreme or cannot do. Feasibility and psychometric properties of the german 12item who.
Medical outcomes study 12item shortform health survey. The 12 item whodas ii is widely used for assessing disability among different populations. Anthony j hill on vimeo, the home for high quality videos and the people who love them. World health organization disability assessment schedule 2. May 23, 2016 universal usage of this instrument will synchronize disability data across various countries and help in international comparison. Feasibility and psychometric properties of the german 12item. This paper provides age and sexspecific norms for the whodas 2. Whodas 36 scores were higher among women with hypertensive complications19. Social security disability mental health claimshow to use gaf scores duration. Psychometric properties of the world health organization. Ii showed adequate internal consistency for all domain scores. The original version was reported to correlate highly r0. The 12item short form health survey sf12 was developed for the medical outcomes study mos, a multiyear study of patients with chronic conditions.
To determine whether the world health organization disability assessment schedule 2. Additionally, roc curve showed that whodas is an accurate test to measure psychiatric disability. Although a close relationship between these two scales would be expected, there are no relevant studies on the topic. This questionnaire asks about difficulties due to health conditions. Manual for who disability assessment schedule whodas 2. Pdf the 12item selfreport world health organization disability. The whodas ii is a multidimensional questionnaire which can be used for measuring the level of disability across various conditions and interventions. Whodas 12 demonstrated agreement with whodas 36 for total score and was a good instrument for screening functioningand disability among postpartum women, with and without smm. The apa is offering a number of emerging measures for. Pdf world health organization disability assessment. This is a secondary analysis of the brazilian retrospective cohort study on long. Validation of the who disability assessment schedule whodas. For 96% of the subjects, the whodas disability score could be computed.
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