Evidence map›Paper›PMID 34273011›Full record

ArticleJournal of patient-reported outcomes2021

Linking scores on the 4- and 5-item versions of the Satisfaction with Life Scale in people with traumatic brain, spinal cord, or burn injury: a National Institute on Disability, Independent Living, and Rehabilitation Research Model System study.

Alyssa M Bamer, Kara McMullen, Anne Deutsch, Mitch Sevigny, Tracy Mroz, Shelly A Wiechman, Jeffrey C Schneider, Dagmar Amtmann

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of patient-reported outcomes, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 36% of its field
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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. 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

8 authors at 4 institutions in 1 country.

Alyssa M BamerDepartment of Rehabilitation Medicine, University of Washington, University of Washington Center on Outcomes Research in Rehabilitation, 12360 Lake City Way, Suite 502, Seattle, WA, 98125, USA.
Kara McMullenDepartment of Rehabilitation Medicine, University of Washington, University of Washington Center on Outcomes Research in Rehabilitation, 12360 Lake City Way, Suite 502, Seattle, WA, 98125, USA.
Anne DeutschShirley Ryan AbilityLab and Northwestern University, 355 E Erie St, Chicago, IL, 60611, USA.
Mitch SevignySpinal Cord Injury Model System, Craig Hospital, 3425 S. Clarkson Street, Englewood, CO, 80113, USA.
Tracy MrozDepartment of Rehabilitation Medicine, University of Washington, 1959 NE Pacific Street, Box 356490, Seattle, WA, 98195, USA.
Shelly A WiechmanDepartment of Rehabilitation Medicine, University of Washington, 325 Ninth Ave, Box 359612, Seattle, WA, 98104, USA.
Jeffrey C SchneiderDepartment of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Research Institute, Spaulding Rehabilitation Hospital, 300 1st Avenue, Boston, MA, 02129, USA.
Dagmar AmtmannDepartment of Rehabilitation Medicine, University of Washington, University of Washington Center on Outcomes Research in Rehabilitation, 12360 Lake City Way, Suite 502, Seattle, WA, 98125, USA. dagmara@uw.edu.ORCID http://orcid.org/0000-0003-1142-9729
University of Washington · USCraig Hospital · USHarvard University · USNorthwestern University · US

Funding

ACL HHS 90DPGE0004
6 · The paper itself

Abstract

backgroundThe Satisfaction with Life Scale (SWLS) is a widely used measure of subjective well-being. Recent evidence indicates the fifth item of the scale reduces the reliability of the scale and is inappropriate for use in traumatic injury populations. The purpose of this study was to develop a linking procedure between the five-item version of the SWLS and a modified four-item version, which removes the problematic item, for use in Spinal Cord (SCI), Traumatic Brain (TBI), and Burn Injury populations.

methodsProration (i.e. adding the mean of the four items to their total) was identified as a potential linking solution that could be easily implemented in clinical or research settings. The validity of the proration approach was evaluated by examining mean differences, cross group classification by SWLS category, score correlations, the intraclass correlation coefficient, and visual inspection of Bland-Altman plots in a large sample of SCI, TBI, and Burn Injury survivors who were participants in the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR) Model Systems' National Databases.

resultsA total of 17,897 (SCI n = 8566, TBI n = 7941, and Burn n = 1390) participants were included in this study. SWLS scores ranged from 5 to 35, and the average score difference between directly derived and prorated scores was 0.39 points. A large majority of the sample (93%) had score differences of < 4 points (i.e. approximately 0.5 SD). The correlation between the prorated and directly derived scores was very high (r = 0.97) and the ICC value indicated excellent reliability (ICC = 0.97).

conclusionsThis study provides a valid scoring approach for researchers or clinicians who don't want to lose continuity with previously collected data but prefer to switch to the modified four-item version of the SWLS. Clear guidance is provided for traumatic injury researchers or clinicians on how to implement the proration scoring approach.

Identifiers

PMID34273011
PMCPMC8286208
OpenAlexW3181015939

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.