A Psychometric Evaluation of the Chinese Version of the 5D Itch Scale in Taiwanese Elderly

Abstract

Purpose: To translate the English version of the 5D itch scale into Chinese and test psychometric properties of the Chinese version of the 5D itch scale (C5D-IS) in a sample of 257 older adults with chronic pruritus lasting 6 weeks in Taiwan. Results: The expert's content validity index was 0.94. Concurrent validity between the C5D-IS and the Chinese version of Pittsburgh Sleep Quality Index was 0.30.Spearman's rho correlations between subscales were statistically significant (all p < 0.001). Item 3 (direction) had the lowest but item 2 (degree) had the highest correlation to other items. Cronbach's alpha test of internal consistency was 0.71 for the five domains of the C5D-IS. Conclusion: The C5D-ISis a reliable instrument that can help Chinese-speaking caregivers determine the pruritic symptoms of older adults and assess the effects of the treatment on the symptoms. However, further testing of the reliability of the scale in different population is recommended.

Impact on Quality of Life in Chronic Pruritus in a Tertiary Level Hospital in Kathmandu

“…In our study, 81.1% of participants had at least some impairment in sleep, which was only slightly higher than that found in a study by Elman et al, where 75% participants had at least some effect on sleep due to pruritus. 6 The majority of participants (23.3%) had occasional delays in falling asleep in our study, which was similar to that found in a study by Lin et al 9 The impairment of sleep due to chronic pruritus was found to be the most disabling among the items of 5-D disability domain in majority of patients (40.5%) in our study which was similar study by Elman et al 6 In our study, at least some impact on leisure/social activities, housework/errands, and work/school was seen in 93.9%, 87.8%, and 68.3% of participants, respectively. At least some impact on leisure/social activities, housework/errands, and work/school was found to be present in 35.9%, 31.2%, and 14.5% of participants in a study by Elman et al 6 The significantly higher percentage of participants reporting at least some disability in our study could be explained by the fact that the majority of patients in our part of the world present to health care centers to get consultations only when their disease has become troublesome and started causing various impairments.…”

“…In our study, the maximum participants (50.6%) had itching present for 6-12hours/day in the past 2 weeks which was similar to the study by Lin et al, in which itching was present for 6-12 hours/day in the majority of participants. 9 Most participants (47.8%) had severe intensity of itching, and 82.2% of participants in our study reported that itch was getting worse, while in a study by Lin et al, mild to moderate intensity of pruritus was reported by most participants, and the itching was a little bit better but still present in the majority of them. 9 The difference could be attributed to the fact that in the study by Lin et al, the commonest cause of chronic pruritus was found to be xerosis rather than inflammatory dermatological diseases.…”

“…9 Most participants (47.8%) had severe intensity of itching, and 82.2% of participants in our study reported that itch was getting worse, while in a study by Lin et al, mild to moderate intensity of pruritus was reported by most participants, and the itching was a little bit better but still present in the majority of them. 9 The difference could be attributed to the fact that in the study by Lin et al, the commonest cause of chronic pruritus was found to be xerosis rather than inflammatory dermatological diseases. In our study, 81.1% of participants had at least some impairment in sleep, which was only slightly higher than that found in a study by Elman et al, where 75% participants had at least some effect on sleep due to pruritus.…”

Validation of the 5-D Itch Scale in Three Ethnic Groups and Exploring Optimal Cutoff Values Using the Itch Numerical Rating Scale

“…However, the prevalence has been scarcely reported in Asian populations. Many studies have focused on investigating it as a comorbid condition in outpatients with eczema and dermatitis [ 11 ] and pruritus in older populations [ 12 ]. Chronic pruritus imposes a large burden on patients' quality of life, comparable to that of chronic pain [ 13 ].…”

Patient-reported outcome (PRO) instruments for disease severity and quality of life in patients with atopic dermatitis: a systematic review of English and Chinese literature

“…They were recommended to be in category A. Among the 23 multidimensional instruments, 9 (39.1%) were category A (34,35,38,39,(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55)(56)(57), 6 (26.1%) category B (36,48,(58)(59)(60)(61)(62), and 8 (34.8%) were category C (37,39,46,51,54,(63)(64)(65)(66)(67)(68)(69)(70)(71)(72)(73)(74)(75)(76)(77)(78). None of the included multidimensional instruments has been proved to be sufficient in all of the assessed measurement properties.…”