Norms scores of the Tampa Scale for Kinesiophobia were established using data from Dutch, Canadian, and Swedish pain samples to obtain more valid and reliable norms than can be obtained by subgroup analyses based on age or gender.
Abstract:
The present study aimed to develop norms for the Tampa Scale for Kinesiophobia (TSK), a frequently used measure of fear of movement/(re) injury. Norms were assessed for the TSK total score as well as for scores on the previously proposed TSK activity avoidance and TSK somatic focus scales. Data from Dutch, Canadian, and Swedish pain samples were used (N = 3082). Norms were established using multiple regression to obtain more valid and reliable norms than can be obtained by subgroup analyses based on age or gender. In the Dutch samples (N = 2236), pain diagnosis was predictive of all TSK scales. More specifically, chronic low back pain displayed the highest scores on the TSK scores followed by upper extremity disorder, fibromyalgia, and osteoarthritis. Gender was predictive of TSK somatic focus scores and age of TSK activity avoidance scores, with male patients having somewhat higher scores than female patients and older patients having higher scores compared with younger patients. In the Canadian (N = 510) and Swedish (N = 336) samples, gender was predictive of all TSK scales, with male patients having somewhat higher scores than female patients. These norm data may assist the clinician and researcher in the process of decision making and treatment evaluation.
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TL;DR: The results of this review encourage clinicians to consider kinesiophobia in their preliminary assessment and find strong evidence for an association between a greater degree of kines iophobia and greater levels of pain intensity and disability and moderate evidence between agreater degree ofkinesiophobic and higher levels ofPain severity and low quality of life.
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TL;DR: In this article, the authors reviewed the existing evidence for the mediating role of pain-related fear, and its immediate and long-term consequences in the initiation and maintenance of chronic pain disability.
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TL;DR: Findings demonstrated that the fear of movement/(re)injury is related to gender and compensation status, and more closely to measures of catastrophizing and depression, but in a much lesser degree to pain coping and pain intensity.
Q1. What was used to determine the norms for the TSK total score?
Multiple regression analysis was used to investigate which background variables were important to take into account for deriving norm data as well as to obtain reliable and stable norms.
Q2. What is the standard normal distribution for z-values?
If the residuals are normally distributed with the same variance, then z is normally distributed and the standard normal distribution can be used to interpret z-values [30].
Q3. What is the Tampa Scale for Kinesiophobia?
The Tampa Scale for Kinesiophobia (TSK) [19] is a widely used instrument to assess fear of movement/(re)injury and has been applied to various pain conditions such as chronic low back pain [8,12,23], fibromyalgia [23], osteoarthritis [13],for the Study of Pain.
Q4. Why were the norms determined for Dutch and for Canadian/Swedish samples separately?
Due to statistical constraints (collinearity of diagnosis with country if all 3 countries were included in the analysis), norms were determined for Dutch and for Canadian/Swedish samples separately.
Q5. What are the z-scores of the Dutch patient?
Because the residuals from which the z-scores were computed had a normal distribution and the actual percentiles agreed very well with percentiles according to the normal distribution, the z-scores of 2, 1, 0, 1, 2 correspond to the 2nd, 16th, 50th, 84th, and 98th percentiles, respectively.
Q6. What were the significant predictors of TSK scores in Canada?
Patients with chronic low back pain had the highest TSK scores, followed by upper extremity disorders, fibromyalgia, and osteoarthritis.
Q7. What are the main variables that were included in this study?
Based on previous research that has shown that TSK scores correlate with gender [28,32,33] and studies showing that TSK scores seem to depend on pain diagnosis [3,4,13,23,26,27], these variables were included as norming variables.
Q8. How can a scale score be converted into a standardized z-score?
With the final model, a raw scale score of an individual can be converted into a standardized z-score by computing the predicted score Y (by means of filling in the regression analysis), computing the residual error (subtracting predicted Y from observed Y), and finally, dividing the residual error by the SD(e), which is the square root of the MS(residual).
Q9. What is the traditional approach to deriving norm scores?
A traditional approach to deriving norm scores is to compare an individual’s raw score to a reference group that matches on background variables such as age and gender.