Reliability and validity of the Turkish version of the Diabetes Distress Scale for type 2 diabetes and distress levels of the participants

Psychometric Properties of the Turkish Validity and Reliability of the Parent Diabetes Distress Scale

Objective

The aim of this study was to evaluate the validity and reliability of the Turkish translation of the Parent Diabetes Distress Scale (PDDS).

Methods

The PDDS is a 5-point Likert-type scale with 20 items. After obtaining permission from the scale developers, the study commenced. First, a systematic adaptation of the scale into the Turkish language was performed including translation, expert panel review, back translation, and pilot study. Test-retest was applied to 35 participants. After these procedures, data collection was undertaken using the adapted PDDS and a demographic data collection form. The collected data were analyzed for reliability, including stability of the scale with test-retest and internal consistency of the scale (Cronbach’s α), and validity including construct validity of the scale with confirmatory factor analysis (CFA).

Results

The parents of 210 teenagers, aged >11 and <18 years, who had been diagnosed with type 1 diabetes mellitus for at least one year were included. Of these parents, 71.9% (n=151) were mothers and 53.3% (n=112) of the children were girls. The Cronbach’s α value was 0.906. The results of the CFA were χ2/df=4.406, p<0.001, comparative fit test 0.704, and goodness of fit tests 0.749. The mean total PDDS score was 2.2±0.7. These results indicate that scores of 1.6 points or less was evaluated as “little or no distress” 1.7-2.4 as “moderate distress,” and >2.4 points as “high distress”. This showed that the majority of the parents in the study experienced moderate or severe diabetes-related distress.

Conclusion

The Turkish version of the PDDS fulfilled the validity and reliability tests at an acceptable level.

The Chinese version of the revised Diabetes Distress Scale for adults with type 2 diabetes: Translation and validation study

Objectives

This study aimed to translate the revised 17-item Diabetes Distress Scale (DDS17, 2017) into mandarin (simplified) Chinese and validate the Chinese version of DDS17 (C-DDS17, 2021) among adult patients with type 2 diabetes in China.

Methods

A scale translation and cross-sectional validation study was conducted. The DDS17 was translated into mandarin (simplified) Chinese through a five-step process: authorization, forward translation, synthesis, back translation, and amendment. During this session, 59 patients assessed the understandability and readability of the translated scale. From June 7 to September 4, 2021, a cross-sectional study that adhered to the COSMIN checklist was conducted with 400 individuals with type 2 diabetes from three Class A tertiary comprehensive hospitals in Beijing, China. The content, construct, convergent, discriminant validity, and reliability (Cronbach’s α coefficient and item-total correlation coefficients) of the C-DDS17 were evaluated. This study was a part of a project registered in the Chinese Clinical Trial Registry (no. ChiCTR2100047071).

Results

Among the participants, 33.3% (133/400) of them experienced moderate to high diabetes distress. The content validity indices of the C-DDS17 equaled 1.00. The scale yielded a four-factor structure. The average variances extracted were 0.42–0.57, which was lower than squared correlations. Cronbach’s α coefficient was 0.88 for the overall scale and ranged from 0.76 to 0.81 for sub-scales. Corrected item-total correlation coefficients ranged from 0.42 to 0.61. The eighth item (“Feeling that I am often failing with my diabetes routine”) was better fit to physician distress than regimen distress but had little influence on the validation results.

Conclusions

The C-DDS17 is a reliable and valid instrument for assessing diabetes distress in patients with type 2 diabetes. It is a promising instrument for early identification and management of diabetes distress in clinical practice and trials.

Diabetes-Related Distress Among People with Type 2 Diabetes in Ho Chi Minh City, Vietnam: Prevalence and Associated Factors

BACKGROUND

Diabetes-related distress (DRD) refers to the condition of negative emotion as a result of living with diabetes and the burden of self-care. This study aims to evaluate the prevalence and associated factors of DRD among people with type 2 diabetes.

METHODS

A cross-sectional study was carried out on people with Type 2 Diabetes at three hospitals in Ho Chi Minh City, between April and November 2020. The study used the Vietnamese version of the Diabetes Distress Scale (DDS) which includes 17 items. The mean total distress score was calculated on the average of the 17 items. A mean score of equal to 2.0 or higher was classified as moderate to severe distress. Descriptive statistics were performed by frequency and percentage, and the multivariate Logistic Regression Analysis was used to assess information where p-value <0.05 was considered statistically significant.

RESULTS

A total of 517 participants, who were mainly over 60 years old (56.8%) with females being 65.0%, participated in the study. Results showed that 23.6% and 5.8% of them, respectively, were found as being moderately or highly distressed. Some factors that correlated with the total distress results included age, timescale of diabetes, and glycemic control level (HbA1c). The rate of total distress in those who were over 60 years old and had a HbA1c <7 were less prevalent than those who were under 60, and had a HbA1c ≥7 (OR 0.5 95% CI 0.3-0.7; OR 0.5 95% CI: 0.3-0.9, respectively, all p<0.05), whilst the timescale of diabetes between 5 and 10 years was significantly more prevalent than those who had a timescale less 5 years (OR 1.8 95% CI 1.1-2.9, p<0.05).

CONCLUSION

A high rate of distress exists in people with diabetes. Therefore, combining the evaluation of distress as part of the regular diagnostic procedures of diabetes care, and recommending physicians apply a comprehensive approach to diabetes management, is necessary.