Prognostic Factors of Importance on Who Develops Chronic Low Back Pain
Prognostic Factors of Importance on Who Develops Chronic Low Back Pain: a Protocol Update for an Inception Cohort with Focus on Prognostic Factors with 54 Years of Follow Up
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Despite massive efforts of trying to find predictors and prevention for LBP, it remains to be clarified, why some individuals develop severely disabling low back pain while others never experience noteworthy back pain. There is no evidence that numbers of chronically affected individuals have diminished; rather, the incidence of LBP has increased continuously over the last 20 years which is also reflected in rising numbers of lumbar surgical treatments. The prevalence and burden increase with age and prevention of LBP in an aging population seems more urgent than ever. As LBP is undoubtedly a multifaceted disorder that tends to fluctuate throughout life, there is a need for longitudinal research, exploring the effect of both life style and psychosocial factors on the development of chronic low back pain.
The aim of this study is to identify whether a history of low back pain during adolescence represents an increased risk of experiencing low back pain later in life.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Copenhagen, Denmark, 2000
- The Parker Institute, Frederiksberg Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
This is an inception cohort based on pupils from schools in Elsinore. There are no formal inclusion criteria other tan being part of this cohort
Exclusion Criteria:
- No formal exclusion criteria but inability to understand/answer our questionnaire is per se an exclusion criteria
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
|---|---|
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Inception cohort, former Elsinore pupils
640 former Elsinore pupils (330 female, 310 male).
Aged 14 in 1965.
Two earlier cross-sectional studies have been done in this group (in 1990 and 2000).
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Questionnaire mainly focusing on low back pain, pain related disorders, psychosocial factors and the use of alternative treatments for pain
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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prevalence of LBP
Time Frame: measured once at study baseline
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To estimate the prevalence of self-disclosed low back pain
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measured once at study baseline
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Incidence of LBP
Time Frame: measured once at study baseline
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To estimate the incidence of self-disclosed low back pain
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measured once at study baseline
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Brief illness perception questionnaire (IPQ-B)
Time Frame: measured once at study baseline
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Actual IPQ-B score. Generic questionnaire developed to measure illness perception. The IPQ-B contains eight items and one causal scale. Items 1-8 are rated using a 0-to-10 response scale, item 9 is a memo field. Five of the items assess cognitive illness representations: consequences (Item 1), timeline (Item 2), personal control (Item 3), treatment control (Item 4), and identity (Item 5). Two of the items assess emotional representations: concern (Item 6) and emotions (Item 8). One item assesses illness comprehensibility (Item 7). A low score on items number 1,2,5,6 and 8 indicates that the illness is perceived as benign while a low score on the items 3, 4 and 7 indicates that the illness is perceived as threatening. By reversing these three items it is possible to compute an overall score. A higher score reflects a more threatening view of the illness. |
measured once at study baseline
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EQ-5D (3 likert scale)
Time Frame: measured once at study baseline
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The EQ-5D-3L essentially consists of the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS) (0-100).
The EQ-5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.
Each dimension has 3 levels: no problems, some problems, extreme problems.
The EQ VAS records the respondent's self-rated health on a vertical, visual analogue scale where the endpoints are labelled 'Best imaginable health state' (100) and 'Worst imaginable health state' (0).
This information can be used as a quantitative measure of health outcome as judged by the individual respondents.
The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state.
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measured once at study baseline
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Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Elsinore low back pain cohort
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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