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Outcome prediction in chronic unilateral lumbar radiculopathy: prospective cohort study

Overview of attention for article published in BMC Musculoskeletal Disorders, February 2015
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Title
Outcome prediction in chronic unilateral lumbar radiculopathy: prospective cohort study
Published in
BMC Musculoskeletal Disorders, February 2015
DOI 10.1186/s12891-015-0474-9
Pubmed ID
Authors

Trond Iversen, Tore K Solberg, Tom Wilsgaard, Knut Waterloo, Jens Ivar Brox, Tor Ingebrigtsen

Abstract

Identification of prognostic factors for persistent pain and disability are important for better understanding of the clinical course of chronic unilateral lumbar radiculopathy and to assist clinical decision-making. There is a lack of scientific evidence concerning prognostic factors. The aim of this study was to identify clinically relevant predictors for outcome at 52 weeks. 116 patients were included in a sham controlled clinical trial on epidural injection of glucocorticoids in patients with chronic unilateral lumbar radiculopathy. Success at follow-up was ≤17.5 for visual analogue scale (VAS) leg pain, ≤22.5 for VAS back pain and ≤20 for Oswestry Disability Index (ODI). Fifteen clinically relevant variables included demographic, psychosocial, clinical and radiological data and were analysed using a logistic multivariable regression analysis. At follow-up, 75 (64.7%) patients had reached a successful outcome with an ODI score ≤20, 54 (46.6%) with a VAS leg pain score ≤17.5, and 47 (40.5%) with a VAS back pain score ≤22.5. Lower age (OR 0.94 (CI 0.89-0.99) for each year decrease in age) and FABQ Work ≥34 (OR 0.16 (CI 0.04-0.61)) were independent variables predicting a successful outcome on the ODI. Higher education (OR 5.77 (CI 1.46-22.87)) and working full-time (OR 2.70 (CI 1.02-7.18)) were statistically significant (P <0.05) independent predictors for successful outcome (VAS score ≤17.5) on the measure of leg pain. Lower age predicted success on ODI (OR 0.94 (95% CI 0.89 to 0.99) for each year) and less back pain (OR 0.94 (0.90 to 0.99)), while higher education (OR 5.77 (1.46 to 22.87)), working full-time (OR 2.70 (1.02 to 7.18)) and muscle weakness at baseline (OR 4.11 (1.24 to 13.61) predicted less leg pain, and reflex impairment at baseline predicted the contrary (OR 0.39 (0.15 to 0.97)). Lower age, higher education, working full-time and low fear avoidance beliefs each predict a better outcome of chronic unilateral lumbar radiculopathy. Specifically, lower age and low fear avoidance predict a better functional outcome and less back pain, while higher education and working full-time predict less leg pain. These results should be validated in further studies before being used to inform patients. Current Controlled Trials ISRCTN12574253 . Registered 18 May 2005.

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Mendeley readers

The data shown below were compiled from readership statistics for 95 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Australia 1 1%
United Kingdom 1 1%
United States 1 1%
Unknown 92 97%

Demographic breakdown

Readers by professional status Count As %
Student > Master 18 19%
Unspecified 14 15%
Student > Bachelor 14 15%
Student > Doctoral Student 11 12%
Student > Ph. D. Student 10 11%
Other 28 29%
Readers by discipline Count As %
Medicine and Dentistry 37 39%
Nursing and Health Professions 24 25%
Unspecified 15 16%
Psychology 9 9%
Sports and Recreations 3 3%
Other 7 7%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 February 2015.
All research outputs
#3,349,422
of 5,021,372 outputs
Outputs from BMC Musculoskeletal Disorders
#1,391
of 1,690 outputs
Outputs of similar age
#115,068
of 178,412 outputs
Outputs of similar age from BMC Musculoskeletal Disorders
#39
of 43 outputs
Altmetric has tracked 5,021,372 research outputs across all sources so far. This one is in the 29th percentile – i.e., 29% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,690 research outputs from this source. They receive a mean Attention Score of 4.4. This one is in the 15th percentile – i.e., 15% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 178,412 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 30th percentile – i.e., 30% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 43 others from the same source and published within six weeks on either side of this one. This one is in the 6th percentile – i.e., 6% of its contemporaries scored the same or lower than it.