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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

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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.

Association between social factors and performance during Functional Capacity Evaluations: a systematic review

ANSUATEGUI ECHEITA, Jone
VAN HOLLAND, Berry J
GROSS, Douglas P
KOOL, Jan
OESCH, Peter
TRIPPOLINI, Maurizio
RENEMAN, Michiel F
March 2018

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Purpose: Determine the association of different social factors with Functional Capacity Evaluation (FCE) performance in adults.

 

Materials and methods: A systematic literature search was performed in MEDLINE, CINAHL, and PsycINFO electronic databases. Studies were eligible if they studied social factor’s association with the performance of adults undergoing FCE. Studies were assessed on methodological quality and quality of evidence. The review was performed using best-evidence synthesis methods.

 

Results: Thirteen studies were eligible and 11 social factors were studied. Considerable heterogeneity regarding measurements, populations, and methods existed among the studies. High quality of evidence was found for the association of FCE performance with the country of FCE and examiner’s fear behavior; moderate quality of evidence with previous job salary; and low or very low quality of evidence with compensation status, litigation status, type of instruction, time of day (workday), primary or mother language, and ethnicity. Other social factors were not studied.

 

Conclusions: Evidence for associations of various social factors with FCE performance was found, but robust conclusions about the strength of the associations cannot be made. Quality of evidence ranged from high to very low. Further research on social factors, also within a biopsychosocial context, is necessary to provide a better understanding of FCE performance.

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