Psychometric evaluation of a newly developed Elderly-Constipation Impact Scale

PeerJ

article

Patimah Abdul Wahab¹  Dariah Mohd Yusoff²  Azidah Abdul Kadir³  Siti Hawa Ali⁴  Yeong Yeh Lee⁵  Yee Cheng Kueh⁸ 

[1] Department of Medical-Surgical Nursing, Kulliyyah of Nursing, International Islamic University Malaysia;Nursing Programme, School of Health Sciences, Universiti Sains Malaysia;Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia;Unit of Interdisciplinary Health Sciences, School of Health Sciences, Universiti Sains Malaysia;School of Medical Sciences, Universiti Sains Malaysia;Gut Research Group, Faculty of Medicine, Universiti Kebangsaan Malaysia;St George & Sutherland Clinical School, University of New South Wales;Unit of Biostatistics and Research Methodology, School of Medical Sciences, Universiti Sains Malaysia

关键词: Constipation;    Elderly;    QoL;    Scale;    Validation;    EFA;    CFA;    Construct;    Psychometric;   

DOI  :  10.7717/peerj.8581

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

BackgroundChronic constipation is a common symptom among the elderly, and it may affect their quality of life (QoL). A lack of available research focused on the elderly means that this effect is not well understood. This study aimed to develop and validate a new scale (Elderly-Constipation Impact Scale (E-CIS)) to measure the impact of chronic constipation on QoL among the elderly.MethodsA pool of items was generated from a qualitative study, literature reviews, and expert reviews. Exploratory factor analysis (EFA) was performed on the original 40 items of the E-CIS and followed by 27 items for confirmatory factor analysis (CFA). A total of 470 elderly people with chronic constipation were involved.ResultsThe mean age of the participants was 68.64 ± 6.57. Finally, only 22 items were indicated as appropriately representing the E-CIS, which were grouped into seven subscales: ‘daily activities’, ‘treatment satisfaction’, ‘lack of control of bodily function’, ‘diet restriction’, ‘symptom intensity’, ‘anxiety’ and ‘preventive actions’. The scale was confirmed as valid (root mean square error of approximation (RMSEA) = 0.04, comparative fit index (CFI) = 0.961, Tucker-Lewis index (TLI) = 0.952 and chi-square/degree of freedom (chiSq/df) = 1.44) and reliable (Cronbach’s alpha: 0.66–0.85, composite reliability (CR) = 0.699–0.851) to assess the impact of chronic constipation on the elderly’s QoL.ConclusionsThe E-CIS is useful to measure the impact of chronic constipation on the elderly’s QoL. A further test is needed to determine the validity and reliability of this scale in other elderly population.

【 授权许可】

CC BY