Psychometric properties of the Five-item World Health Organization Well-being Index used in mental health services: Protocol for a systematic review.

AIMS

To synthesize evidence of the psychometric properties of the Five-item World Health Organization Well-being Index in mental health settings and critically appraise the methodologies of the included studies.

DESIGN

Protocol for a systematic psychometric review.

METHODS

The review protocol has been registered in the International Prospective Register for Systematic Reviews. The bibliographic databases MEDLINE, Embase, PsycINFO, CINAHL, Cochrane Library, and Web of Science will be searched for relevant studies. The psychometric properties of each study will be evaluated according to the Consensus-based Standards for the Selection of Health Measurements Instruments.

DISCUSSION

The results of our psychometric review will synthesize the psychometric properties of the Five-item World Health Organization Well-being Index in mental health settings and identify possible gaps in the literature regarding methodological quality and its reliability, validity, and responsiveness to change.

IMPACT

The evaluation of patient well-being is important, and the Five-item World Health Organization Well-being Index is an increasingly used patient-reported outcome measure. It is simple to collect, free to use, and consists of five questions using positive health statements. Although the number of studies assessing the validity, reliability, and responsiveness of the questionnaire is increasing worldwide, there is a need to summarize the existing evidence of the psychometric properties of this questionnaire. The proposed study's findings will contribute to future research recommendations and help midwives and nurses in different settings pick an effective, appropriate questionnaire to evaluate patient well-being.