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Group education interventions for people with low back pain: an overview of the literature.

Cohen J E, Goel V, Frank J W, Bombardier C, Peloso P, Guillemin F. Group education interventions for people with low back pain: an overview of the literature. Spine, 1994, 19(11), pp.1214-1222

Record status

This record is a structured abstract written by CRD reviewers. The original has met a set of quality criteria.

Author's objective

To make a recommendation regarding the effectiveness of group education as an intervention for people with low back pain.

Type of intervention

Treatment

Specific interventions included in the review

Group education for people with low back pain.

Participants included in the review

People with either acute or chronic low back pain.

Outcomes assessed in the review

The short-term outcomes were: pain intensity, pain duration, initial sick leave duration, functional status, knowledge and spinal mobility. The long-term outcomes were: number of pain recurrences, pain intensity, total pain duration, total sick leave duration, functional status, spinal mobility and number of contacts with health care providers.

Study designs of evaluations included in the review

Randomized controlled trials (RCTs), trials in which subjects were assigned on the basis of order of entry into the study, studies using a block design and studies using historical controls.

What sources were searched to identify primary studies?

MEDLINE was searched from 1986 to 1992. Health was searched from 1975 to 1992. ERIC was searched from 1983 to 1992.PsycLIT was searched from 1987 to 1992. In addition the reference lists of retreived papers were searched and other papers located through personal communication.

Criteria on which the validity (or quality) of studies was assessed

Original study results had to be presented. Group education had to be a primary component of the study intervention (studies involving 0ne-to-one education were excluded). The study had to include a control group. Subjects had to have experienced either acute or chronic low back pain. The article had to be published in either English or French.

How were the judgements of validity (or quality) made?

Two independent reviewers who were blinded to the source and to the authors of each study . Each study was given a score of 0, 1 or 2 (by each reviewer) for each of the following categories: description of participants and setting, group assignement and description of study interventions, measurement of outcomes, analysis, and overall study quality. These points were summed across categories and a final quality score was calculated as the mean of the two raters' overall scores.

How were decisions on the relevence of primary studies made?

Not stated

How was the data extracted from primary studies?

By two independent reviewers.

Number of studies included

13 studies in total (total of 2052 subjects): 9 studies were randomized controlled trials (1515 subjects) 2 studies assigned subjects on the basis of order of entry into the study (93 subjects) 1 study used a block design (45 subjects) 1 study used a historical control group (399 subjects)

How were the studies combined?

Narrative review

How were differences between studies investigated?

The studies were grouped according to duration of back pain (i.e. chronic or acute). They were further divided by the type of control group they used (i.e. whether they provided passive treatment [placebo, no treatment or usual care] or an active control group [exercise, physiotherapy, or other]).

Results of the review

Of the 13 studies cited only 6 were found to be sufficiently well-designed (on the basis of the quality score allocated) for their findings to be discussed. Of the 4 studies which focused on chronic back pain subjects, one found a positive short-term effect on pain intensity. In the 2 studies with acute cases group education was found by 1 study to reduce pain duration and initial sick leave duration in the short-term. However, the intervention also included work-site visits. The 6 studies provided no evidence of benefit for group education on any of the long-term outcome measures.

Was any cost information reported?

No

Author's conclusions

There is insufficient evidence to recommend group education for people with low back pain.

CRD commentary

This review presents a very thorough account of the methodology used plus a very detailed table outlining the characteristics of each of the 13 studies. The initial literature search found 89 articles of which 76 were excluded. Reasons for exclusion can be obtained from the authors. No details about the search strategy are presented, for example why MEDLINE was searched from 1986 to 1992, Health from 1986 to 1992, ERIC from 1983 to 1992 and PsycLIT from 1987 to 1992. The group education interventions were not uniformly of high quality. Only 2 out of 13 interventions were rated as either good or very good by both expert reviewers . On the whole the interventions were not sufficiently described.

Subject index terms

Subject indexing assigned by NLM: Exercise/th [therapy]; Low-Back-Pain/rh [rehabilitation]; Patient- Education; Adult-; Clinical-Trials; Middle-Age; Randomized-Controlled- Trials; Treatment-Outcome

Correspondence address

Dr Longo, Department of Family and Community Medicine, University of Missouri-Columbia, School of Medicine, Missouri 65212, USA.

Copyright

University of York, 1998
Database no.: DARE-940282

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