Evidence map›Paper›PMID 27999659›Full record

ArticleChiropractic & manual therapies2016

The effect of obesity on treatment outcomes for low back pain.

Stanley C Ewald, Eric L Hurwitz, Anupama Kizhakkeveettil

Abstract read
In one paragraph

Article in Chiropractic & manual therapies, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Eating to Feel Better: The Role of Comfort Eating in Chronic Pain.Journal of clinical psychology in medical settings · 2025
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Multi-Dimensional Impact of Chronic Low Back Pain among Underserved African American and Latino Older Adults.International journal of environmental research and public health · 2021
    Article
  7. 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.

Stanley C EwaldUniversity of Western States, 2900 NE 132nd Avenue, Portland, OR 97230 USA.
Eric L HurwitzOffice of Public Health Studies, University of Hawaii, 1960 East-west Road, Honolulu, HI 96822 USA.
Anupama KizhakkeveettilSouthern California University of Health Sciences, 16200 Amber Valley Drive, Whittier, CA 90604 USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective of this study was to estimate the effect of obesity, as measured by body mass index (BMI), on treatment outcomes for low back pain (LBP).

methodsData from the University of California, Los Angeles, and Friendly Hills Healthcare Network low back pain study (collected from 1995 to 2000) were used to perform a secondary data analysis of this randomized clinical trial on adults who sought care for LBP. BMI was the primary predictor variable. Binary logistic regression modeling was performed to estimate odds ratios adjusted for the effects of confounders.

resultsUsing normal weight as the referent population, underweight and overweight populations did not display significant odds ratios for any of the outcome variables. The obese population demonstrated odds ratios of 0.615 (0.379, 0.998) for improvement of disability and 0.550 (0.341, 0.889) for improvement of most severe back pain.

conclusionThe results of this study support an association between obesity and less effective treatment outcomes whether measured by disability (Roland-Morris scale) or pain (most severe pain NRS). Overweight and underweight populations do not appear to have significantly different outcomes than normal weight populations.

trial registrationThis trial was designed and conducted prior to the advent of registries.

Indexed as

Body mass indexDisabilityLow back painObesityPrognosis

Identifiers

PMID27999659
PMCPMC5151134

What OpenQuestion holds

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Registered trials

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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.