Psychometric properties of the Chinese version of adjustment disorder new module-20 in breast cancer patients

Abstract

Background After the new definition of adjustment disorder (AjD) by the International Classification of Diseases-11(ICD-11), AjD has attracted more and more attention. Adjustment disorder new module-20 (ADNM-20), which is used to diagnose AjD, has been verified in some countries, but it has not been verified in China. As a result, the purpose of this study was to investigate the validity and reliability of the Chinese version of the Adjustment disorder new module-20 (ADNM-20) in female breast cancer patients. Methods The ADNM-20 translated into Chinese employed the translation and back translation technique. Three hundred fifty four newly diagnosed (< 1 year) female breast cancer patients were recruited from Tongji Hospital and Hubei Cancer Hospital in Hubei, China. The patients completed the self-report questionnaire including demographic characteristics and the scale ADNM-20. Data on psychometric properties were evaluated in terms of internal consistency, item-total correlations, test-retest reliability, and factorial validity. Results ADNM-20 core symptoms included 8 items and two factors, which were extracted by using exploratory factor analysis (EFA). It could explain 61.74% of the total variance. ADNM-20 accessory symptoms including 12 items and four factors, which were extracted by using EFA. It could explain 68.34% of the total variance. Cronbach’s α coefficient for ADNM-20 was 0.93, split-half reliability was 0.87, and the test-retest correlation coefficient was 0.74. The correlation coefficient between each subscale was ranged from 0.53 to 0.71 (P < 0.01), while the correlation coefficient between the subscales and total scale was ranged from 0.79 to 0.89 (P < 0.01). Conclusions The study verified the validity and reliability of the Chinese version of ADNM-20. It is applicable to measure the prevalence of adjustment disorder in the breast cancer population.

A cross-sectional study on the Arabic Version of the Adjustment Disorder–New Module20 for Cancer Patients: Tool Validation, Prevalence, and Risk Factors

“…In this study, the failure to adapt and impulsivity subscales (α = 0.90 and 0.91) had the best internal consistency, and the worst comprised the anxiety and depression subscales (α = 0.72 -α and 0.69). This is similar to the ndings of two other studies that did not nd great internal consistency for anxiety and depressive moods (α = 0.61 and ω = 0.591) (23) and (α = 0.67 and α = 0.61), respectively (27).…”

“…Another study investigating risk factors for ICD-11 AjD showed that exposure to job-or health-related stressors was signi cantly associated with ICD-11 AjD (37). While the patients in our study reported nancial stress as the most common life stressor, other researchers found it to be the second most common life stressor after a cancer diagnosis in a population of breast cancer patients (27). Health and nancial stressors interact, and cancer patients may become unable to work due to their disease diagnosis and subsequent treatment, making them feel more self-conscious and increasing the prevalence of AjD.…”

“…Like other studies, Cronbach's α of ADNM-20 was between 0.80 and 89 and between 0.74 and 0.90 (15,19). In comparison, the results were lower in the Lithuanian version of the ADNM-20, which ranged from 0.65 to 0.87 (20), and in the Chinese version, which ranged from 0.61 to 0.82 (27). In this study, the failure to adapt and impulsivity subscales (α = 0.90 and 0.91) had the best internal consistency, and the worst comprised the anxiety and depression subscales (α = 0.72 -α and 0.69).…”

“…We evaluated the reliability of the Arabic version of the ADNM-20. The validity and reliability of the ADNM-20 was examined in different languages and showed good results (20,22,23,27). Our results revealed a high internal consistency for the total scale of the Arabic version of ADNM-20 with Cronbach's α = 0.92.…”