Translation and validation of chronic liver disease questionnaire (CLDQ) in Tamil language

Validation of a Primary Biliary Cholangitis-Specific Version of Chronic Liver Disease Questionnaire: CLDQ-PBC

INTRODUCTION

Primary biliary cholangitis (PBC) is a chronic liver disease, leading to cirrhosis and impairment of patient-reported outcomes. We aimed to develop a PBC-specific version of the Chronic Liver Disease Questionnaire (CLDQ) instrument to assess health-related quality of life of patients with PBC.

METHODS

From our Liver Database, we included patients with PBC who had CLDQ, clinicolaboratory data, and completed Short Form-36 and The Functional Assessment of Chronic Illness Therapy-Fatigue. The 29 items of CLDQ were subjected to item reduction, exploratory factor analysis, and fed into a standard instrument validation pipeline.

RESULTS

Data were available for 108 patients with PBC: 57 ± 11 years, 7% male, 58% cirrhosis, and 24% decompensated cirrhosis (Child B and C). Of 29 CLDQ items, none met the exclusion criteria. Exploratory factor analysis (95% of variance) returned 7 factors. Based on evaluation of factor loadings and face validity, those factors yielded 7 domains (Diet, Emotion, Fatigue, Itch, Symptoms, Sleep, and Worry). Good to excellent internal consistency (Cronbach's α 0.85-0.93) was observed for 5/7 domains. For the remaining 2 domains (Diet and Itch), additional items obtained from patients, experts, and review of the literature were included. For 5 domains, known-group validity tests discriminated between patients with PBC with and without cirrhosis, advanced cirrhosis, and depression ( P < 0.05 for 3-5 domains). The CLDQ-PBC domains were correlated with relevant domains of Short Form-36, CLDQ-PBC Fatigue correlated with Fatigue Scale of Functional Assessment of Chronic Illness Therapy-Fatigue (rho = +0.85), and CLDQ-PBC Worry domain negatively correlated with alkaline phosphatase (rho = -0.38, P = 0.0082).

DISCUSSION

The CLDQ-PBC has been developed based on the original CLDQ. The new instrument has evidence for internal consistency and validity and is being fully validated using an external cohort.

Tools to assess quality of life in adults with chronic conditions in India: A scoping review

Background

Chronic diseases are a major contributor to mortality, morbidity, and socio-economic costs globally, including in India. Quality of life (QoL) is an important patient-centered outcome for chronic disease. Measurement properties of tools for assessing QOL in the Indian context have not been assessed systematically.

Methods

A scoping review was conducted, and four major electronic databases were searched. Screening was conducted by at least two independent reviewers, with a third person acting as an arbiter. Data from the retrieved full texts were extracted by one reviewer, with a sample verified by another reviewer to reduce any data extraction errors. A narrative synthesis was done with a focus on measurement properties of tools, including but not limited to internal consistency, inter-rater reliability, test-retest reliability, validity, and acceptability.

Results

Out of 6706 records retrieved, a total of 37 studies describing 34 tools (both generic and disease-specific tools) for 16 chronic conditions were included. Most of the studies were cross-sectional (n = 23). Overall, most tools had acceptable internal consistency (Cronbach's alpha value ≥0.70) and good-to-excellent test-retest reliability (intra-class correlation coefficient = 0.75-0.9), but there was variability in acceptability. In terms of acceptability, seven tools were positively assessed (meeting psychometric property requirements), but all except the World Health Organization QoL tool were disease specific. Many tools have also been tested for local context, and many translated and tested in one or few languages only, thus limiting their usability across the nation. Women were underrepresented in many studies, and tools were not evaluated in other genders. Generalizability to tribal people is also limited.

Conclusion

The scoping review provides a summary of all QOL assessment tools for people with chronic diseases in India. It supports future researchers to make informed decisions for choosing tools. The study highlights the need for more research to develop QOL tools which are contextually applicable and enables the comparability across diseases, people, and regions within India and potentially in the South Asian region.

Quality of life assessment in women with spontaneous premature insufficiency: A comparative cross-sectional study

OBJECTIVE

Premature ovarian insufficiency is cessation of ovarian function prior to 40 years of age. It is known to have varied short and long-term implications on the health of the women. The quality of life is affected in various domanins. The objective of this study is to evaluate QOL of women with POI and the factors associated with it, using WHO QOL-BREF scale.

METHODS

This is a cross sectional comparative study. Women with premature ovarian insufficiency with normal karyotype were included before initiation of hormone replacement therapy as cases and age matched women without any menstrual irregularity, infertility or any chronic illness were included as controls. Written informed consent was obtained from all patients. The pre-validated Tamil version of the WHOQOL-BREF (26 items, 4 domains) was filled through face-to-face interview. The score of each domain was transformed into 0-100 as per the guideline provided by WHOQOL-BREF. Statistical analysis was done using SPSS version 19.

RESULTS

A total of 100 (50 women with POI and 50 control women) completed the WHOQOL-BREF questionnaire. The mean age of the women who participated in the study was 29.6 ± 6.5 years. Among the cases, 72% were nulliparous. There was statistically significant difference in the median scores of overall QOL, physical, psychological and social domains between the two groups. Univariate analysis showed that nulliparity and infertility were the factors responsible for poor QOL, however, these were not independently associated with poor QOL after applying bivariate linear regression analysis.

CONCLUSION

The scores of overall QOL, physical, psychological and social domains were poorer in women with POI as compared to healthy controls.