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Life Satisfaction in Persons With Late Effects of Polio: A Test‐Retest Reliability Study
Author(s) -
Ekstrand Elisabeth,
Lexell Jan,
Brogårdh Christina
Publication year - 2020
Publication title -
pmandr
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.617
H-Index - 66
eISSN - 1934-1563
pISSN - 1934-1482
DOI - 10.1002/pmrj.12325
Subject(s) - kappa , rank correlation , medicine , life satisfaction , test (biology) , quality of life (healthcare) , cohen's kappa , spearman's rank correlation coefficient , outpatient clinic , clinical psychology , gerontology , psychology , physical therapy , demography , statistics , social psychology , paleontology , mathematics , nursing , biology , philosophy , linguistics , sociology
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.