Life Satisfaction in Persons With Late Effects of Polio: A Test‐Retest Reliability Study. Issue 10 (19th February 2020)

• Record Type: Journal Article
• Authors: Ekstrand, Elisabeth; Lexell, Jan; Brogårdh, Christina
• Is Part Of: PM&R. Volume 12:Issue 10(2020)
• Page Start: 997
• Page End: 1002
• Publication Date: 2020-02-19
• Subjects: Medical rehabilitation -- Periodicals; Physical therapy -- Periodicals; Physical Therapy Modalities -- Periodicals; 615.5
• DOI: 10.1002/pmrj.12325
• Languages: English
• ISSNs: 1934-1482

Abstract

Abstract : Background: The Life Satisfaction Questionnaire (LiSat‐11), including one global item and 10 domain‐specific items, is used to evaluate life satisfaction in persons with the late effects of polio (LEoPs). However, there is a lack of knowledge about its psychometric properties. Objective: To evaluate the test‐retest reliability of the LiSat‐11 and the associations between the global and domain‐specific items in persons with LEoPs. Design: A test‐retest design, where data were collected by a postal survey. Setting: University Hospital, Outpatient Clinic. Participants: A cross‐sectional sample of persons (20 women and 31 men; mean age 72 years) with LEoPs. Main Outcome Measurements: LiSat‐11, assessing how satisfied a person is with different aspects of life, such as life as a whole, vocation, economy, leisure, contacts with friends and acquaintances, sexual life, activities of daily living (ADLs), family life, partner relationship, somatic health, and psychological health. Methods: LiSat‐11 was administered on two occasions, 2 weeks apart. The test‐retest reliability was evaluated by Kappa statistics, the percent agreement (PA), and the Svensson rank‐invariant method. The association between the items was evaluated with the Spearman rank correlation coefficient (rho). Results: The Kappa coefficients showed good to excellent agreement (0.64‐0.90) and the PA ≤1 point was high (>92%) for all items. No items showed any systematic or random disagreements according to the Svensson method. All domain‐specific items correlated significantly with the global item "Life as a whole" ( P < .01; rhos 0.41 to 0.75). Conclusions: LiSat‐11 is reliable for assessing life satisfaction in persons with LEoPs. The global item "Life as a whole" is useful as an overall measure but cannot fully replace the information obtained from the domain‐specific items of LiSat‐11.