Psychometric evaluation, using Rasch analysis, of the WHOQOL-BREF in heroin-dependent people undergoing methadone maintenance treatment: further item validation

Chang, Kun Chia; Wang, Jung‐Der; Tang, Hsin Pei; Cheng, Ching Ming; Lin, Chung‐Ying

doi:10.1186/s12955-014-0148-6

Cited by 93 publications

(91 citation statements)

References 25 publications

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“…Our study revealed the patients with BE in Taiwan had poor HRQOL in physical domain but better in environment domain. WHOQOL-BREF is a sensitive tool to evaluate HRQOL for patients with different diseases, such as diabetes mellitus [39], tuberculosis [40], lung cancer [37], inflammatory bowel disease [41], irritable bowel syndrome [42, 43], morbid obesity [30, 35, 44], epilepsy [34], heroin-dependent patients [45] and traumatic limb injury [46]. It is not only useful to compare the difference of HRQOL between cases and controls [34, 35, 38, 42] or subgroups with different severity [35] but also serves as a standard index in validation study for other disease-specific questionnaire [39, 40, 44, 46].…”

Section: Discussionmentioning

confidence: 99%

Health-related quality of life in patients with Barrett’s esophagus

Chang

Lee

Wang

et al. 2016

Health Qual Life Outcomes

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BackgroundGastroesophageal reflux disease (GERD) has become a major health problem globally, affecting patients’ health-related quality of life (HRQOL). Barrett’s esophagus (BE) is a precancerous lesion associated with GERD. BE patients might not only suffer from HRQOL losses by GERD but also face psychological distress due to the increased risk of developing cancer. However, the majority of patients in Asia have shorter BE segment which is different from the West. This study aimed to determine whether the HRQOL in BE patients were worse than in healthy referents in Taiwan.MethodsPatients who received referral esophagogastroduodenoscopy for various symptoms were evaluated for the existence of BE. Lesions were judged as endoscopically suspected esophageal metaplasia (ESEM) if they showed morphological resemblances to BE by endoscopy. The diagnosis of BE was confirmed by histology with intestinal metaplasia or gastric metaplasia based on the Montreal definition. The World Health Organization Quality of Life (WHOQOL-BREF) was administered to BE patients before treatment. For each BE patient, we selected 2 age-, sex-, educational background and municipality-matched healthy referents, sampled by simple randomization method from a national survey in Taiwan. Multiple linear regression models were constructed to control the potential confounders.ResultsA total of 84 patients diagnosed with BE were enrolled as BE group and then compared with 168 healthy referents. The BE group had significantly lower WHOQOL-BREF scores than those of healthy referents in the physical domain (P < 0.05) but higher scores in the environment domain (P < 0.05). In the physical domain, the BE group had significantly lower scores in various facets, including pain, discomfort, sleep and rest and dependence on medications or treatments. There was no significant difference in social and psychological domains between the BE group and healthy referents.ConclusionsBE patients suffer from poor sleep and rest and high dependence on medications, which significantly reduce their quality of life. Individual facets of each domain warrants a better clinical healthcare to improve quality of life of BE patients.

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Section: Discussionmentioning

confidence: 99%

Health-related quality of life in patients with Barrett’s esophagus

Chang

Lee

Wang

et al. 2016

Health Qual Life Outcomes

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“…A higher score indicates a higher QoL [23]. In addition to its good psychometric properties in the general Taiwanese population (α = 0.70–0.77), the WHOQOL-BREF had satisfactory reliability and validity in populations with psychiatric problems [24, 25], with cancer [26], and with geriatric problems [27]. …”

Section: Methodsmentioning

confidence: 99%

Using the Affiliate Stigma Scale with caregivers of people with dementia: psychometric evaluation

Chang¹,

Su²,

Lin³

2016

Alz Res Therapy

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BackgroundIn this study, we examined the psychometric properties of the Affiliate Stigma Scale to measure affiliate stigma for caregivers of family members with dementia, a topic scantily covered in the literature.MethodsTwo hundred seventy-one caregivers were recruited. Each completed the Affiliate Stigma Scale, Caregiver Burden Inventory, Taiwanese Depression Questionnaire, Beck Anxiety Inventory, and 28-item World Health Organization Quality of Life questionnaire. The data were evaluated for internal consistency and concurrent validity, and they were analyzed using Rasch statistics and confirmatory factor analysis (CFA).ResultsCFA and Rasch analysis suggested that the Affiliate Stigma Scale contains three underlying unidimensional concepts (cognition, affect, and behavior). The three concepts had satisfactory internal consistency (α = 0.822–0.855) and concurrent validity (r = 0.290–0.628 with caregiver burden, 0.391–0.612 with depression, 0.367–0.467 with anxiety, and −0.590 to −0.365 with quality of life).ConclusionsThe Affiliate Stigma Scale is a promising instrument with sound psychometric properties for measuring affiliate stigma. Healthcare providers might want to use it to understand the caregivers’ perspectives and to design appropriate interventions to decrease their affiliate stigma.

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“…Moreover, item and person separation reliability were generated based on the Rasch model to indicate the reliability of the SABAS in scale-level. Recommended cutoff for both item and person separation reliability is 0.7 (Chang et al 2014). Differential item functioning (DIF) was further computed in the Rasch model to test the measurement invariance of the SABAS across subgroups at the item level.…”

Section: Psychometric Testing Using Rasch Analysismentioning

confidence: 99%

Smartphone Application-Based Addiction Among Iranian Adolescents: A Psychometric Study

Lin

Imani

Broström

et al. 2018

Int J Ment Health Addiction

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The Smartphone Application-Based Addiction Scale (SABAS) can be used in screening for the risk of smartphone addiction. This study aimed to validate a Persian version of the SABAS using confirmatory factor analysis (CFA), Rasch analysis, and latent class analysis (LCA). In a sample of 3807 Iranian adolescents, CFAs were used to confirm the factor structure of SABAS, Rasch models were used to examine the unidimensionality of SABAS, and LCAs were used to classify the adolescents in terms of application preferences and smartphone application-based addiction. The unidimensional structure of SABAS was supported by CFA and Rasch model. LCA classified the sample into three subgroups (i.e., low, medium, high) in terms of risk of smartphone addiction. This study showed the unidimensionality of the Persian SABAS with robust psychometric properties. It can be used by healthcare providers in screening for risk of addiction to smartphone applications and provide early intervention if necessary.

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Psychometric evaluation, using Rasch analysis, of the WHOQOL-BREF in heroin-dependent people undergoing methadone maintenance treatment: further item validation

Cited by 93 publications

References 25 publications

Health-related quality of life in patients with Barrett’s esophagus

Health-related quality of life in patients with Barrett’s esophagus

Using the Affiliate Stigma Scale with caregivers of people with dementia: psychometric evaluation

Smartphone Application-Based Addiction Among Iranian Adolescents: A Psychometric Study

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