Resources search

Cross-cultural adaptation and psychometric evaluation of the Malay version of the Neck Disability Index

LIM, H H R
TAN, S T
TANG, Z Y
KOH, E Y L
KOH, K H
May 2020

Expand view

Purpose: Translating the Neck Disability Index (NDI) into the Malay language (NDI-M); evaluation of psychometric properties in patients with neck pain.

 

Methods: The NDI-M was translated according to established guidelines. In the first visit, 120 participants completed the NDI-M, visual analogue scale (VAS) for pain and demographic details. 98 participants returned to complete similar questionnaires and the Global Rating of Change (GRoC) scale. The NDI-M was evaluated for internal consistency, test-retest reliability, content validity, construct validity and responsiveness.

 

Results: The NDI-M demonstrated excellent internal consistency (Cronbach’s α = 0.84) and good test-retest reliability (ICC2,1 = 0.79). Content validity was confirmed with no floor or ceiling effects. Construct validity was established revealing three-factor subscales explaining 68% of the total variance. The NDI-M showed a moderate correlation with VAS (Rp = 0.49, p < 0.001). Regarding responsiveness, a moderate correlation between NDI-M change scores and VAS change scores was found (Rp = 0.40, p < 0.001). However, there was no significant correlation between NDI-M with GRoC (Rs = 0.11, p = 0.27).

 

Conclusions: The NDI-M is a reliable and valid tool to measure functional outcomes in patients with neck pain. It is responsive in detecting changes in pain intensity during a patient’s rehabilitation journey.

Hearing loss grades and the International classification of functioning, disability and health

OLUSANYA, Bolajoko
DAVIS, Adrian
HOFFMANN, Howard
September 2019

Expand view

The World Health Organization (WHO) estimates that 466 million people were living with disabling hearing impairment in 2018 and this estimate is projected to rise to 630 million by 2030 and to over 900 million by 2050. However, these projections are based on a hearing impairment classification that does not fully reflect the provisions of the International classification of functioning, disability and health for assessing all forms of functional impairments. The case is made for a review of the concept of disabling hearing loss adopted by WHO after the recommendation of the Global Burden of Disease (GBD) Expert Group on Hearing Impairment in 2008.

 

Bull World Health Organ. 2019;97(10):725-728

doi: 10.2471/BLT.19.230367

Spatial variation in the disability-poverty correlation : evidence from Vietnam

MONT, Daniel
NGUYEN, Cuong
August 2013

Expand view

"Poverty and disability are interrelated, but data that can disentangle the extent to which one causes the other is not available. However, data from Vietnam allows us to examine this interrelationship in a way not previously done. Using small area estimation techniques, we uncover three findings not yet reported in the literature. First, disability prevalence rates vary significantly within a county even at the district level. Second, the correlation between disability and poverty also varies at the district level. And most importantly, the strength of the correlation lessens based on district characteristics that can be affected by policy. Districts with better health care and infrastructure, such as roads and health services, show less of a link between disability and poverty, supporting the hypothesis that improvements in infrastructure and rehabilitation services can lessen the impact of disability on families with disabled members"
Working Paper Series, No 20

E-bulletin