Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Psychometric Evaluation of the Persian Version of the Lymphedema Life Impact Scale (Llis, Version 1) in Breast Cancer Patients Publisher Pubmed



Haghighat S1 ; Montazeri A2 ; Zayeri F3 ; Ebrahimi M1 ; Weiss J4
Authors
Show Affiliations
Authors Affiliations
  1. 1. ACECR, Quality of Life Department, Breast Cancer Research Center, Motamed Cancer Institute, Tehran, Iran
  2. 2. ACECR, Health Metrics Research Center, Institute for Health Sciences Research, Tehran, Iran
  3. 3. Shahid Beheshti University of Medical Sciences, Proteomics Research Center and Department of Biostatistics, Faculty of Paramedical Sciences, Tehran, Iran
  4. 4. Cox Health Outpatient Rehabilitation, Lymphedema Clinic, Springfield, MO, United States

Source: Health and Quality of Life Outcomes Published:2018


Abstract

Background: Despite the high prevalence of lymphedema in Iranian breast cancer patients, there is no valid instrument for measuring quality of life in this population. The aim of this study was to assess reliability and validity of the Persian version of Lymphedema Life Impact Scale (LLIS) in breast cancer patients. Methods: Forward-backward procedure was applied to translate The LLIS from English into Persian. The LLIS is an 18-item measure of physical, psychosocial, and functional impairments caused by lymphedema. Experts and patients assessed content and face validity, respectively. Discriminant validity was evaluated by comparing breast cancer patients with and without lymphedema. Convergent validity was assessed by comparing LLIS score with SF-36 (functional component) and the EORTC-QLQ-C30 (functional component). The construct validity also was evaluated using confirmatory and exploratory factor analyses. Internal consistency was evaluated by Cronbach's alpha coefficient. Stability was assessed by test-retest analysis over a one-week interval in 13 patients. Results: In all 446 breast cancer patients were entered into the study. The content and face validity of Persian version of LLIS were acceptable and minor corrections were applied in final version. The questionnaire differentiated well in patients' with and without lymphedema and not lending support to its discriminant validity. Confirmatory factor analysis showed a good fit for the data. Cronbach's alpha coefficient in physical, psychosocial and functional subscales were 0.873, 0.854 and 0.884 respectively. Intra-class correlation coefficient of total score of the LLIS was 0.96. Conclusions: The findings of this study suggest a first indication that reliability and validity of the Persian version of LLIS in patients with breast cancer induced lymphedema was good. Application of this instrument for identifying problems of patients with upper extremity lymphedema may be helpful in designing interventions to improve quality of life. © 2018 The Author(s).
Related Docs
View other Related Docs
1. Comparing the Effect of In-Person and Virtual Lymphedema Self-Management Education on Quality of Life of Women With Breast Cancer: A Randomized Clinical Trial, Iranian Journal of Breast Diseases (2021)
2. The Effect of Relaxation Techniques on Edema, Anxiety and Depression in Post-Mastectomy Lymphedema Patients Undergoing Comprehensive Decongestive Therapy: A Clinical Trial, PLoS ONE (2018)
3. Translation and Psychometric Evaluation of the Persian Version of Knee Outcome Survey-Activities of Daily Living Scale (Kos-Adls), BMC Musculoskeletal Disorders (2023)
4. Research Paper: The Psychometric Features of the Patient-Rated Wrist; Evaluation in Iranians With Scaphoid or Distal Radius Fracture, Iranian Rehabilitation Journal (2021)
5. Statistical Validity and Reliability of the Persian Version of the Western Ontario Meniscal Evaluation Tool (Womet) According to the Cosmin Checklist, BMC Musculoskeletal Disorders (2020)
6. Prediction of Lymphedema Occurrence in Patients With Breast Cancer Using the Optimized Combination of Ensemble Learning Algorithm and Feature Selection, BMC Medical Informatics and Decision Making (2022)
7. Health-Related Quality of Life of Iranian Breast Cancer Patients: A Meta-Analysis and Systematic Review, Breast Cancer Research and Treatment (2018)
8. The Persian Brief Illness Perception Questionnaire: Validation in Patients With Chronic Nonspecific Low Back Pain, Scientific World Journal (2021)
Experts (# of related papers)
View all Related Experts
Noureddin Nakhostin Ansari (4)
Soofia Naghdi Dorbati (2)
Other Related Docs
9. Knee Injury and Osteoarthritis Outcome Score in Patients With Isolated Meniscus Injury; Validity and Reliability, Journal of Research in Medical Sciences (2017)
10. Reliability and Validity of an Iranian Version of the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire for Patients With Multiple Myeloma: The Eortc Qlq-My20, Asian Pacific Journal of Cancer Prevention (2016)
11. Arm Circumference and Volumetric Measurements in Breast Cancer Related Lymphedema, Iranian Journal of Breast Diseases (2023)
12. Validation and Responsiveness of the Persian Version of Heartqol Questionnaire in Cardiac Rehabilitation After Coronary Artery Bypass Grafting: An Observational Study, ARYA Atherosclerosis (2020)