Evidence map›Paper›PMID 26467096›Full record

Trial reportBMC musculoskeletal disorders2015

Persistence of pain in patients with chronic low back pain reported via weekly automated text messages over one year.

Charlotte Leboeuf-Yde, Rikke Krüger Jensen, Niels Wedderkopp

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Trial
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Charlotte Leboeuf-YdeResearch Department, Spine Centre of Southern Denmark, Hospital Lillebaelt, Østre Hougvej 55, DK- 5500, Middelfart, Denmark. clyde@health.sdu.dk.
Rikke Krüger JensenResearch Department, Spine Centre of Southern Denmark, Hospital Lillebaelt, Østre Hougvej 55, DK- 5500, Middelfart, Denmark. rikke.kruger.jensen@rsyd.dk.
Niels WedderkoppInstitute of Regional Health Services Research, University of Southern Denmark, Middelfart, Denmark. nwedderkopp@health.sdu.dk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA previous study has suggested that it is uncommon for patients with chronic bothersome low back pain (LBP), who consult the secondary health care sector, to report at least four consecutive weeks without such bothersome pain in 1 year. It is not yet known, however, how many days of the week they experience pain throughout the year.

methodThe current study analyzed data collected in two randomized clinical studies conducted in 2007-9 on patients with back pain (Study 1 and 2). Study participants were patients with LBP for more than 2 months, one group with MRI-defined Modic changes (Study 1) and the other without any pathological explanation for the pain (Study 2). In both studies, participants were followed over 1 year with weekly automated text messages (SMS-Track). Each week they reported the number of days they had experienced bothersome LBP (0-7 days). The number of weeks with 7 days of bothersome LBP was calculated for both study groups. As baseline and outcome characteristics were similar between the intervention and control groups in each study, the data from treatment and control groups in each study were analyzed together, regardless of treatment allocation and the results compared between the two study samples.

resultsThe proportion of patients reporting bothersome LBP all days of the week ranged from 0 to 100 %, with the findings arranged in a U-shaped curve. The pain frequency patterns were remarkably similar for the two study samples. At one extreme, 31 % of participants reported 0-10 % of weeks with daily LBP. At the other extreme, 25 % of participants reported 91-100 % of weeks with daily LBP. The distribution between these values was also very similar for the two groups.

conclusionThis study revealed there to be considerable variation in weekly persistence of symptoms during 1 year in patients from the secondary care sector with chronic LBP. The results range from bothersome pain each day of the week, every week of the year, to no weeks at all with 7 days of pain. Interestingly, this pattern is near-identical in the two study samples; those with non-specific LBP and those with LBP and Modic changes. This heterogeneic pain profile in patients with chronic LBP deserves to be further investigated.

Indexed as

AdolescentAdultChronic DiseaseDenmarkFemaleHumansLongitudinal StudiesLow Back PainMaleMiddle AgedPrevalenceText MessagingYoung Adult

Identifiers

PMID26467096
PMCPMC4606966

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.