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Psychometric evaluation of the post-discharge surgical recovery scale
Inst för Omvårdnad, Hälsouniversitetet i Linköping.
Inst för Omvårdnad, Hälsouniversitetet Linköping.
Department of Anesthesia and Intensive Care/Centre for Health Care Sciences, Örebro University Hospital, Örebro, Sweden.
Inst för Omvårdnad, Hälsouniversitetet Linköping.
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2010 (English)In: Journal of Evaluation In Clinical Practice, ISSN 1356-1294, E-ISSN 1365-2753, Vol. 16, no 4, 794-801 p.Article in journal (Refereed) Published
Abstract [en]

Rationale, aim and objectives  Day surgery patients are discharged after a short period of postoperative surveillance, and reliable and valid instruments for assessment at home are needed. The aim of this study was to evaluate the psychometric properties of a Swedish version of the post-discharge surgical recovery (PSR) scale, an instrument to monitor the patient's recovery after day surgery, in terms of data quality, internal consistency, dimensionality and responsiveness.

Methods  Data were collected on postoperative days 1 and 14 and included 525 patients. Data quality and internal consistency were evaluated using descriptive statistics, correlation analyses and Cronbach's α. The dimensionality of the scale was determined through an exploratory factor analysis. Responsiveness was evaluated using the standardized response mean and the area under the receiver operating characteristics curve (AUC). The correlation between change score in PSR and change score in self-rated health was assessed using Pearson's correlation coefficient. Patients' ability to work and their self-rated health on postoperative day 14 were used as external indicators of change.

Results  Six items showed floor or ceiling effects. Cronbach's coefficient α was 0.90 and the average inter-item correlation coefficient was 0.44 after the deletion of two items. The items were closely related to each other, and a one-factor solution was decided on. A robust ability to detect changes in recovery (standardized response mean = 1.14) was shown. The AUC for the entire scale was 0.60. When initial PSR scores were categorized into three intervals, the ability to detect improved and non-improved patients varied (AUC 0.58–0.81). There was a strong correlation between change scores in PSR and health (0.63).

Conclusions  The Swedish version of the PSR scale demonstrates acceptable psychometric properties of data quality, internal consistency, dimensionality and responsiveness. In addition to previous findings, these results strengthen the PSR scale as a potential instrument of recovery at home.

Place, publisher, year, edition, pages
2010. Vol. 16, no 4, 794-801 p.
Keyword [en]
day surgery;postoperative period;psychometrics;questionnaire;recovery;validation study
National Category
Nursing
Identifiers
URN: urn:nbn:se:umu:diva-40891DOI: 10.1111/j.1365-2753.2009.01197.xOAI: oai:DiVA.org:umu-40891DiVA: diva2:403421
Available from: 2011-03-13 Created: 2011-03-13 Last updated: 2017-12-11Bibliographically approved

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