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Health and Quality of Life Outcomes

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Open Access 01-12-2018 | Short report

Assessing the reliability of the short form 12 (SF-12) health survey in adults with mental health conditions: a report from the wellness incentive and navigation (WIN) study

Authors: Tianyao Huo, Yi Guo, Elizabeth Shenkman, Keith Muller

Published in: Health and Quality of Life Outcomes | Issue 1/2018

Abstract

Background

Although Short Form (SF)-12 × 2® has been extensively studied and used as a valid measure of health-related quality of life in a variety of population groups, no systematic studies have described the reliability of the measure in patients with behavioral conditions or serious mental illness (SMI).

Methods and results

We assessed the internal consistency, split-half reliability and annual test-retest correlations in a sample of 1587 participants with either a combination of physical and behavioral conditions or SMI. The Mosier’s alpha was 0.70 for the Physical Composite Scale (PCS) and 0.69 for the Mental Health Composite Scale (MCS), indicating good internal consistency. We observed strong correlations between physical functioning, physical role and body pain scales (r = 0.55–0.56), and between social functioning, emotional role, and mental health (r = 0.53–0.58). We calculated split-half reliabilities to be 0.74 for physical functioning, 0.75 for physical role, 0.73 for emotional role and 0.65 for mental health respectively. We assessed the annual test-retest correlation using intraclass correlation (ICC) and found an ICC of 0.61 for PCS and 0.57 for MCS composite scores, adjusting for age, sex, race/ethnicity, and CRG. We found no decline in the correlations between baseline and the following study years until year 3.

Conclusions

Our results encourage using SF-12v2® to assess health-related quality of life in the Medicaid population with combined physical and behavioral conditions or similar cohorts.

Trial registration

The WIN study was registered with clinicaltrials.gov on April 22, 2015. Trial registration number: NCT02440906. Retrospectively registered.

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Title: Assessing the reliability of the short form 12 (SF-12) health survey in adults with mental health conditions: a report from the wellness incentive and navigation (WIN) study
Authors: Tianyao Huo
Yi Guo
Elizabeth Shenkman
Keith Muller
Publication date: 01-12-2018
Publisher: BioMed Central
Published in: Health and Quality of Life Outcomes / Issue 1/2018
Electronic ISSN: 1477-7525
DOI: https://doi.org/10.1186/s12955-018-0858-2

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Assessing the reliability of the short form 12 (SF-12) health survey in adults with mental health conditions: a report from the wellness incentive and navigation (WIN) study

Abstract

Background

Methods and results

Conclusions

Trial registration

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods and results

Conclusions

Trial registration

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