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Vyas J, Johns JR, Abdelrazik Y, Ali FM, Ingram JR, Salek S, Finlay AY. The Dermatology Life Quality Index (DLQI) used as the benchmark in validation of 101 quality-of-life instruments: A systematic review. J Eur Acad Dermatol Venereol 2025; 39:631-679. [PMID: 39269008 PMCID: PMC11851266 DOI: 10.1111/jdv.20321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024]
Abstract
BACKGROUND The validation of psychometric measures requires use of other established and standardized validated measures. The Dermatology Life Quality Index (DLQI) is the most widely used tool to measure the burden of skin diseases and assess effectiveness of interventions based on patients' perspective. OBJECTIVES The objective of this study was to systematically analyse peer-reviewed publications describing use of the DLQI in validation of other patient-reported outcome (PRO) and quality-of-life (QoL) measures. METHODS Seven databases were searched for papers published between January 1994 and December 2022 for articles containing data using DLQI in the validation of other PRO/QoL measures. The methodology followed PRISMA guidelines. The protocol was prospectively registered on PROSPERO. RESULTS Of 1717 screened publications, 122 articles including 30,727 patients from 34 different countries with 41 diseases met the inclusion criteria. The DLQI was used in validation of 101 measures: 80 dermatology-specific QoL measures, mostly disease-specific, and 21 generic measures. Of these studies, 47 were cross-cultural adaptations, 116 single arm, 100 were cross-sectional, 18 longitudinal and six randomized placebo controlled. DLQI was used for 14 known group, and correlation for 10 construct, 101 convergent, 10 concurrent, 10 divergent/discriminant and three criterion validity tests using Mann-Whitney (2), Spearman's (80), Pearson's correlation (26) and Student's t-test (1). The DLQI was used in responsiveness analysis in 13 studies. CONCLUSIONS This review identified widespread use of the DLQI in validation of other dermatology PRO/QoL measures and confirmed the central role that the DLQI plays as a benchmark in instrument development and validation across dermatology and beyond. The use of the DLQI by so many developers of other instruments has provided a common standard for comparability.
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Affiliation(s)
- J. Vyas
- Centre for Medical Education, School of MedicineCardiff UniversityCardiffUK
| | - J. R. Johns
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
| | - Y. Abdelrazik
- University Hospitals Birmingham, NHS Foundation TrustBirminghamUK
| | - F. M. Ali
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
| | - J. R. Ingram
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
| | - S. Salek
- School of Life and Medical SciencesUniversity of HertfordshireHatfieldUK
| | - A. Y. Finlay
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
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Shaigany S, Mastacouris N, Tannenbaum R, Strunk A, Luan C, Burshtein J, Burshtein A, Carvajal R, Garg A, Alloo A. Outcome Measurement Instruments Used to Evaluate Dermatologic Adverse Events in Cancer Trials: A Systematic Review. JAMA Dermatol 2024; 160:651-657. [PMID: 38506826 DOI: 10.1001/jamadermatol.2024.0053] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Importance Assessment of type, severity, and impact of dermatologic adverse events (DAEs) necessitates well-developed and validated clinician-reported outcome measures (ClinROMs) and patient-reported outcome measures (PROMs) that evaluate concepts specific to mucocutaneous toxic effects and that allow appropriate interpretation and comparison of DAEs across trials. Objective To evaluate heterogeneity and quality of ClinROMs and PROMs used to assess DAEs from systemic cancer therapy. Evidence Review Two systematic reviews were conducted by searching PubMed and Embase databases from inception through March 7, 2023, and April 12, 2023. The first search included randomized clinical trials and observational studies reporting systemic cancer treatment-induced DAEs assessed by a ClinROM or PROM. The second included studies evaluating measurement properties of frequently used ClinROM and PROM instruments. The Consensus-Based Standards for the Selection of Health Measurement Instruments risk of bias tool was used to evaluate methodologic quality of validation assessments. Findings A total of 395 studies were included. The Common Terminology Criteria for Adverse Events (CTCAE) was utilized in 331 studies meeting inclusion criteria (83.8%). At least 1 skin-related PROM was infrequently utilized in systemic chemotherapy clinical trials (79 studies [20.0%]). Most frequently utilized PROMs were the Dermatology Life Quality Index (DLQI; 34 studies [8.6%]) and Skindex-16 (20 studies [5.1%]). Among studies capturing DAEs, 115 (29.1%) reported a nondescript term (ie, rash) as the only DAE. Eight studies described 44 property assessments of the CTCAE, DLQI, and Skindex. There were no studies evaluating content validity, intrarater reliability, or measurement error for the CTCAE, DLQI, or Skindex. There were no studies evaluating structural validity, internal consistency, and responsiveness of DLQI or Skindex. Interrater reliability and responsiveness were each assessed for 1 DAE-related component of the CTCAE. Construct validity for CTCAE, DLQI, and Skindex was evaluated in 29 (65.9%), 3 (6.8%), and 9 (20.5%) assessments, respectively. Conclusions and Relevance In this systematic review, there was a narrow spectrum of ClinROMs and PROMs with limited validity for the measurement of DAEs in the context of systemic chemotherapy interventions in clinical trials. Report of trial DAEs often had low morphologic specificity and meaning. Based on existing gaps in measurement and report of DAEs, a frequent and impactful adverse event to chemotherapy, the framework for evaluating cutaneous toxic effects in oncology trials may need collaborative reevaluation.
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Affiliation(s)
- Sheila Shaigany
- Northwell Health, New Hyde Park, New York
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York
- Northwell Health Cancer Institute, New Hyde Park, New York
| | | | | | | | | | | | | | - Richard Carvajal
- Northwell Health, New Hyde Park, New York
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York
- Northwell Health Cancer Institute, New Hyde Park, New York
| | - Amit Garg
- Northwell Health, New Hyde Park, New York
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York
- Northwell Health Cancer Institute, New Hyde Park, New York
| | - Allireza Alloo
- Northwell Health, New Hyde Park, New York
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, New York
- Northwell Health Cancer Institute, New Hyde Park, New York
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Szabó Á, Brodszky V, Rencz F. A comparative study on the measurement properties of Dermatology Life Quality Index (DLQI), DLQI-Relevant and Skindex-16. Br J Dermatol 2021; 186:485-495. [PMID: 34724199 DOI: 10.1111/bjd.20765] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Dermatology Life Quality Index (DLQI) and Skindex-16 are among the most commonly used dermatology-specific health-related quality-of-life (HRQoL) instruments. DLQI has two common scoring methods, the original and the DLQI-Relevant (DLQI-R) modification. Head-to-head comparisons of the measurement properties of the DLQI, DLQI-R and Skindex-16 are currently lacking. OBJECTIVES We aim to compare the measurement properties of the DLQI, DLQI-R and Skindex-16. METHODS We analysed data from 618 patients with self-reported physician-diagnosed dermatological conditions from a cross-sectional survey carried out in Hungary in early 2020. DLQI, DLQI-R and Skindex-16 were compared in terms of ceiling and floor effects, informativity, convergent validity and known-group validity. RESULTS Mean DLQI, DLQI-R and Skindex-16 total scores were 3·76 ± 5·03, 4·11 ± 5·34 and 29·36 ± 26·62, respectively. Among patients with a DLQI/DLQI-R total score of zero, 64% reported problems on Skindex-16. Overall, 23-38% of patients with 'not relevant' responses on DLQI items 3 (shopping/home/gardening), 7 (working/studying), 8 (interpersonal problems) and 9 (sexual difficulties) reported problems on their corresponding Skindex-16 items. Average relative informativity (Shannon's evenness index) was the highest for Skindex-16 (0·85), followed by DLQI-R (0·66) and DLQI (0·54). DLQI, DLQI-R and Skindex-16 demonstrated similar convergent validity. DLQI was able to better discriminate between known groups of patients based on overall skin-related HRQoL impairment, whereas DLQI-R and Skindex-16 performed better with respect to self-perceived health status. CONCLUSIONS Skindex-16 seems to be more sensitive than DLQI/DLQI-R in capturing mild impairment in HRQoL. Our findings help to provide a fuller understanding of the difference between DLQI, DLQI-R and Skindex-16 and support the informed choice of instrument for clinical and research purposes.
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Affiliation(s)
- Á Szabó
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, H-1093, Budapest, Hungary.,Károly Rácz Doctoral School of Clinical Medicine, Semmelweis University, 26 Üllői út, H-1085, Budapest, Hungary
| | - V Brodszky
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, H-1093, Budapest, Hungary
| | - F Rencz
- Department of Health Economics, Corvinus University of Budapest, 8 Fővám tér, H-1093, Budapest, Hungary
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A validation study of the Japanese version of the Angioedema Activity Score (AAS) and the Angioedema Quality of Life Questionnaire (AE-QoL). Allergol Int 2021; 70:471-479. [PMID: 34023225 DOI: 10.1016/j.alit.2021.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/23/2021] [Accepted: 04/16/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Recurrent angioedema (RecAE) has a substantial impact on patients' daily lives. However, there have been no disease-specific patient-reported outcomes (PROs) available in Japan to measure disease activity and health-related QoL impairment in such patients. METHODS Japanese versions of the Angioedema Activity Score (AAS) and the Angioedema Quality of Life Questionnaire (AE-QoL) were examined for their validity and reliability. By using these questionnaires, the relationship between disease activity and QoL impairment among the Japanese population of RecAE were analyzed in real-world setting. RESULTS The Japanese AAS and AE-QoL domains showed good internal consistency of 0.967 and > 0.835. For known group validity, AAS28 and AE-QoL total scores were higher in more severe patients than those with milder disease and QoL impairment, respectively. AAS28 showed strong correlation with indexes of disease activity, while the AE-QoL total score correlated with Dermatology Life Quality Index (DLQI). Sufficient reproductivity of the AAS and AE-QoL was shown by their intraclass correlation coefficients of 0.890 and 0.700. The Japanese population is characterized by the total score of AAS28, 34.3 ± 38.8 (mean ± SD); and AE-QoL, 38.7 ± 25.2. Each domain score of AE-QoL was 32.4 ± 29.7 in "Functioning", 35.0 ± 27.8 in "Fatigue/mood", 50.7 ± 30.6 in "Fears/shame", or 24.7 ± 29.8 in "Food". Changes in AAS28 and AE-QoL positively correlated to Patient global assessment of disease activity and DLQI, respectively. CONCLUSIONS The Japanese AAS and AE-QoL are valid and reliable instruments for Japanese patients with RecAE, and active disease affecting QoL. They help assess disease activity and QoL of RecAE in routine patient care and clinical trials.
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Chen J, Wang Z. How to conduct integrated pharmaceutical care for patients with hand-foot syndrome associated with chemotherapeutic agents and targeted drugs. J Oncol Pharm Pract 2021; 27:919-929. [PMID: 33874817 DOI: 10.1177/10781552211009291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The objective of this article was to offer practical operational process for pharmacists to successfully conduct integrated pharmaceutical care for patients with hand-foot syndrome associated with chemotherapeutic agents and targeted drugs which may facilitate the work of first-line clinical pharmacist.Data sources: A literature review was conducted in March 2020 of Pubmed, Medline, and EMBASE (2010-2020) using terms such as: hand-foot syndrome, hand-foot skin reaction, palmar-plantar erythrodysesthesia, chemotherapeutic agent, and multikinase inhibitor. Appropriate references from selected articles were also used.Data summary: This paper involves 81 articles including review articles, meta-analysis, and clinical trials which focused on every aspect of hand-foot syndrome, such as manifestation, mechanism, occurrence rate, onset time, patient education, self-monitor scale, and management. Studies were thematically divided into four parts (clinical presentation of HFS, risk stratification, initiation of pharmaceutic care, and management of the adverse reaction). CONCLUSION HFS is one of the common adverse events which was associated with many chemotherapeutic agents and multikinase inhibitor drugs. Although the mechanisms and histopathology may be different, they due share some common clinical manifestations. As part of integrated pharmaceutical care for cancer patients, it is important to conduct patient education about the risk of hand-foot syndrome and basic knowledge about hand-foot syndrome management before initiating anticancer therapy. Once hand-foot syndrome happens, evidence-based management could try. If the hand-foot syndrome is intolerable, dose reduction or discontinuation of the anticancer therapy should be considered.
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Affiliation(s)
- Jiexiu Chen
- Department of Pharmacy, Sichuan Provincial Women's and Children's Hospital, Chengdu, China
| | - Zhuo Wang
- Department of Pharmacy, Changhai Hospital of Shanghai, Shanghai, China
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Yu R, Wu X, Jia L, Lou Y. Effect of Chinese Herbal Compound LC09 on Patients With Capecitabine-Associated Hand-Foot Syndrome: A Randomized, Double-Blind, and Parallel-Controlled Trial. Integr Cancer Ther 2020; 19:1534735420928466. [PMID: 32597691 PMCID: PMC7324898 DOI: 10.1177/1534735420928466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 12/18/2022] Open
Abstract
Background: LC09 is composed with 5 kinds of traditional Chinese herbal medicines (Astragalus membranaceus, flowers carthami, lithospermum, geranium wilfordii, and radix angelicae) which are used in China and developed over several thousand years. Aim: To assess the effectiveness and safety of herbal compound LC09 on patients with capecitabine-associated hand-foot syndrome (HFS). Materials and Methods: In this randomized, double-blind, and parallel-controlled study, 156 patients that diagnosed with HFS were randomly assigned to a treatment group (n = 78) or control group (n = 78). Patients were evaluated every week by the National Cancer Institute (NCI) grade and Numerical Rating Scale (NRS) pain scores. The Dermatology Life Quality Index (DLQI) scale and Instrumental Activity of Daily Living (IADL) scale were used to assess the quality of life before the treatment, and at 1 week and after the treatment of 2 cycles. Results: At the baseline, no significant differences were observed between the 2 groups. After treatment, significant differences in NCI grade and NRS pain scores were observed between the 2 groups (P < .01). In addition, HFS effectiveness rate and pain alleviation rate were significantly higher in the treatment group compared with the control group (P < .01). Furthermore, the chemotherapy completion rate between 2 groups was significantly different (P = .002). In addition, no adverse reactions were observed in either LC09 or control group. Conclusion: LC09 can decrease NCI grade and significantly alleviate pain in HFS patients. Besides, it can also increase chemotherapy completion rate.
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Affiliation(s)
- Ran Yu
- Beijing University of Chinese Medicine, Beijing, China
| | | | - Liqun Jia
- China-Japan Friendship Hospital, Beijing, China
| | - Yanni Lou
- China-Japan Friendship Hospital, Beijing, China
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Hsu YH, Shen WC, Wang CH, Lin YF, Chen SC. Hand-foot syndrome and its impact on daily activities in breast cancer patients receiving docetaxel-based chemotherapy. Eur J Oncol Nurs 2019; 43:101670. [PMID: 31586645 DOI: 10.1016/j.ejon.2019.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 09/16/2019] [Accepted: 09/29/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Breast cancer patients who undergo docetaxel-based chemotherapy regimens can have hand-foot syndrome (HFS), which negatively impacts their ability to perform daily activities. The purpose of the study was to assess, in breast cancer patients receiving chemotherapy: the perceived levels of HFS-related symptoms of the feet, hands or fingers; and HFS-related restrictions in daily activities; as well as to identify factors associated with these symptoms and restrictions. METHODS This cross-sectional study examined breast cancer patients who received docetaxel-based chemotherapy from the general surgery outpatient department and oncology outpatient department of a medical center in northern Taiwan. A set of structured questionnaires were used to measure patients' HFS-related symptoms and HFS-related restrictions in daily activities. RESULTS Of the 85 breast cancer patients studied, 41.2% reported HFS. Patients had higher level of HFS-related foot symptoms than HFS-related hand or fingers symptoms. Greater restriction in HFS-related daily activities was associated with more HFS-related hand or fingers symptoms and more HFS-related foot symptoms; these factors explained 44.7% of the variance in restriction of activities. CONCLUSION Skin care and patient education should be provided to manage the HFS of breast cancer patients receiving chemotherapy.
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Affiliation(s)
- Ya-Hui Hsu
- Department of Nursing, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wen-Chi Shen
- Division of Hematology and Oncology, Department of Internal Medicine, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chao-Hui Wang
- Department of Nursing, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Fen Lin
- Department of Nursing, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shu-Ching Chen
- School of Nursing, College of Medicine, Chang Gung University, Taoyuan, Taiwan; School of Nursing, College of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Radiation Oncology and Proton and Radiation Therapy Center, Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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A systematic review of measurement properties of patient-reported outcome measures for use in patients with foot or ankle diseases. Qual Life Res 2017; 26:1969-2010. [DOI: 10.1007/s11136-017-1542-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2017] [Indexed: 12/20/2022]
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Mikoshiba N, Yamamoto-Mitani N, Ohki T, Asaoka Y, Yamaguchi H, Obi S, Sato K, Koike K, Miyashita M. A simple home-based self-monitoring tool for early detection of hand-foot syndrome in cancer patients. Jpn J Clin Oncol 2016; 46:979-985. [DOI: 10.1093/jjco/hyw112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/20/2016] [Indexed: 12/16/2022] Open
Affiliation(s)
- Naoko Mikoshiba
- Department of Adult Nursing/Palliative Care Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo
| | - Noriko Yamamoto-Mitani
- Department of Adult Nursing/Palliative Care Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo
| | - Takamasa Ohki
- Department of Gastroenterology, Mitsui Memorial Hospital, Tokyo
| | - Yoshinari Asaoka
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo
| | - Hironori Yamaguchi
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo
| | - Shuntaro Obi
- Department of Gastroenterology and Hepatology, Kyoundo Hospital of the Sasaki Institute, Tokyo
| | - Kazuki Sato
- Department of Palliative Nursing, Health Sciences, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo
| | - Mitsunori Miyashita
- Department of Palliative Nursing, Health Sciences, Tohoku University Graduate School of Medicine, Sendai, Japan
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Chanprapaph K, Rutnin S, Vachiramon V. Multikinase Inhibitor-Induced Hand-Foot Skin Reaction: A Review of Clinical Presentation, Pathogenesis, and Management. Am J Clin Dermatol 2016; 17:387-402. [PMID: 27221667 DOI: 10.1007/s40257-016-0197-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Multikinase inhibitors (MKIs) are targeted cancer therapies designed to inhibit multiple tyrosine kinase pathways responsible for tumor proliferation, growth, and survival. These agents are more able to target cancer cells and possess better safety profiles than conventional chemotherapies. However, MKIs can produce significant cutaneous adverse events, hand-foot skin reaction (HFSR) being the most clinically significant. Although not life threatening, HFSR can lead to MKI dose modification, interruption, or termination, potentially limiting the anti-tumor effect. This article summarizes the current knowledge concerning the epidemiology, clinical presentation, pathogenesis, histopathology, prognostic implication, and current evidence-based prophylactic and reactive treatment options for MKI-induced HFSR. Its high incidence and significant impact on the quality of life emphasizes the great need to understand the pathogenesis and improve management of this condition.
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Affiliation(s)
- Kumutnart Chanprapaph
- Division of Dermatology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand.
| | - Suthinee Rutnin
- Division of Dermatology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Vasanop Vachiramon
- Division of Dermatology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
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Lee EH, Kwon O, Hahm KB, Kim W, Kim JI, Cheung DY, Kim YJ, Kim JH, Park JJ, Joo MK. Irritable bowel syndrome-specific health-related quality of life instrument: development and psychometric evaluation. Health Qual Life Outcomes 2016; 14:22. [PMID: 26882900 PMCID: PMC4756460 DOI: 10.1186/s12955-016-0423-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 02/04/2016] [Indexed: 12/15/2022] Open
Abstract
Background Health-related quality of life (HRQOL) is an important outcome indicator for chronic disease, and particularly in the absence of biological markers for illness, such as with irritable bowel syndrome (IBS). The aims of this study were to develop and evaluate a new IBS-specific HRQOL instrument (IBS-HR-QOL). Methods This methodological study comprised three steps: conceptualization of the IBS-HR-QOL, item extraction and establishment of content validity, and psychometric evaluation of the instrument with 267 IBS patients recruited from four university hospitals. Results The content validity of the developed IBS-HR-QOL was assessed by 11 experts. Exploratory and confirmatory factor analyses yielded four factors. The criterion and convergent validities of the IBS-HR-QOL were demonstrated using the Short Form-36 and the Hospital Anxiety and Depression Scale, respectively. Known-groups validity was demonstrated using a symptom-severity scale. The internal consistency reliability and test-retest reliability were satisfactory, with a Cronbach’s alpha and intraclass correlation coefficient of 0.93 and 0.88, respectively. Conclusions The IBS-HR-QOL comprises a total of 16 items. The IBS-HR-QOL demonstrated good psychometric properties. This instrument is easily comprehensible and short, rendering it feasible for use in clinical practice and research. Electronic supplementary material The online version of this article (doi:10.1186/s12955-016-0423-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Eun-Hyun Lee
- Graduate School of Public Health, Ajou University, 164 Worldcup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 443-380, Republic of Korea.
| | - Oran Kwon
- Department of Food & Nutritional Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Ki Baik Hahm
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - WonHee Kim
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Jin Il Kim
- Department of Internal Medicine, The Catholic University of Korea, Yeouido St. Mary's Hospital, Seoul, Republic of Korea
| | - Dae Young Cheung
- Department of Internal Medicine, The Catholic University of Korea, Yeouido St. Mary's Hospital, Seoul, Republic of Korea
| | - Yoon Jae Kim
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jung Ho Kim
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Jong-Jae Park
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Moon Kyung Joo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
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