Development And Preliminary Evaluation Of Psychometric Properties Of A Tuberculosis Self-Efficacy Scale (TBSES)

Nutrition literacy mediates the relationship between self-efficacy and eating behavior in young tuberculosis patients: A cross-sectional study

Objective

To assess the associations between self-efficacy, nutrition literacy and eating behavior, and to examine if nutrition literacy mediates the relationship between self-efficacy and eating behavior in young tuberculosis patients.

Methods

This cross-sectional study used a convenience sampling strategy to select 230 young tuberculosis patients at the Second Hospital of Nanjing (Public Health Medical Center of Nanjing), China, from June 2022 to August 2022. The data were collected using a demographic data form, the Eating Behavior Scale, the Food and Nutrition Literacy Questionnaire and the Tuberculosis Self-Efficacy Scale. Descriptive statistics, Pearson bivariate correlation analysis, Pearson partial correlation analysis, hierarchical multiple regression, and mediation analysis were conducted in the study.

Results

The mean self-efficacy score for young tuberculosis patients was 92.56 (SD = 9.89, range = 21 ∼ 105). The average nutrition literacy score for young tuberculosis patients was 68.24（SD = 6.75, range = 0 ∼ 100). The bivariate correlation analysis and partial correlation analysis found that self-efficacy was positively correlated with nutrition literacy (P < 0.01). The regression analysis showed that self-efficacy (F = 5.186, β = 0.233, P < 0.001)and nutrition literacy (F = 7.749, β = 0.545, P < 0.001) significantly predicted eating behavior. The three dimensions of nutrition literacy including nutritional knowledge (mediation effect ratio = 13.1%, 95% CI =  - 0.089; -0.005), preparing food (mediation effect ratio = 17.4%, 95 %CI = 0.011; 0.077) and eating (mediation effect ratio = 54.7%, 95 %CI = 0.070; 0.192) mediated the relationship between self-efficacy and eating behavior in young tuberculosis patients.

Conclusion

Nutrition literacy mediated the relationship between self-efficacy and eating behavior. To promote healthy eating behavior among young tuberculosis patients, interventions aimed at improving self-efficacy and nutrition literacy should be conducted.

Self-Efficacy as Moderator and Mediator Between Medication Beliefs and Adherence in Elderly Patients with Type 2 Diabetes

PURPOSE

Poor antidiabetic medication adherence remains a great barrier to effective diabetes self-management among aging adults. This study investigates the mediation and moderation effects of self-efficacy on the relationship between medication beliefs and adherence in elderly patients with type 2 diabetes.

METHODS

This cross-sectional study evaluated a sample of 309 hospitalized elderly patients who completed the assessment of medication beliefs, self-efficacy for medication uses and medication adherence in a tertiary hospital in Shanghai, China. A bootstrapping sampling method and hierarchical moderator regression analysis were used to verify the hypothesis of mediation and moderation effects of self-efficacy on the relationship between medication beliefs and adherence.

RESULTS

Self-efficacy for medication use acted as a moderator (B=-0.063, t=-2.215, p=0.028) and partial mediator (CI_{total effect}=4.5-16.63, p=0.001; CI_indirect=1.524-5.323, p=0.014; CI_direct=2.151-11.817, p=0.001) on the relationship between general harm medication beliefs and medication adherence. Participants with lower general harm medication beliefs may develop higher self-efficacy, which, in turn, results in a higher level of medication adherence, and higher self-efficacy may attenuate the negative effect of high general harm medication beliefs on medication adherence.

CONCLUSION

Self-efficacy for medication use not only mediated the relationship between general harm beliefs about medication and medication adherence, but moderated it negatively. The findings of this study indicate an opportunity to improve the prognosis of elderly Chinese patients with type 2 diabetes through improved medication adherence by strengthening factors such as self-efficacy for appropriate medication use and general harm beliefs about medication.

Reliability and validity evaluation of the appropriate antibiotic use self-efficacy scale for Chinese adults

Background

Antibiotic resistance is one of the greatest threats to global public health. Inappropriate use of antibiotics can lead to an increase in antibiotic resistance. Individual self-efficacy in the appropriate use of antibiotics plays a key role, especially in China where the population has easy access to antibiotics. However, there are no tools available to assess the self-efficacy of appropriate antibiotic use for Chinese adults. We aimed to translate and develop a Chinese version of the Appropriate Antibiotic Use Self-Efficacy Scale (AAUSES), and validate its reliability and validity.

Methods

A total of 659 adults were recruited to participate in the questionnaire. The original version scale was first translated into Chinese using the backward and forward translation procedures. The internal consistency reliability of the scale was measured by the Cronbach alpha coefficient, the test-retest reliability, and the corrected item-total correlation. The validity of the scale was assessed by the content validity index, exploratory factor analysis, and confirmatory factor analysis.

Results

The content validity index of the scale was 0.96. Exploratory factor analysis (EFA) supported a 4-factor structure of the translated questionnaire, and the discriminant validity of the scale was good. Confirmatory factor analysis (CFA) showed in the model fitness index, the chi-square degree of freedom was 2.940, the goodness-of-fit index(GFI) was 0.929, the incremental fit index (IFI) was 0.908, the comparative fit index(CFI) was 0.906, root mean square error of approximation(RMSEA) was 0.077, and standardized root mean residual (SRMR) was 0.0689, and the model fitting indexes were all in the acceptable range. Cronbach alpha coefficient for the scale was 0.910. The test-retest reliability was 0.947, and the corrected item-total correlations for the items ranged from 0.488 to 0.736. Self-efficacy for appropriate antibiotic use in adults varied by education, occupation, income, place of residence, and whether or not they had heard of antibiotic resistance.

Conclusions

The results indicated that the Chinese version of the AAUSES had good reliability and validity. Therefore, it can be considered a tool to evaluate the appropriate antibiotic use self-efficacy of adults in China.

Development and Psychometric Testing of the Supportive Care Needs Scale for Patients with Tuberculosis (SCN-TB)

PURPOSE

Patients affected by tuberculosis have diverse unmet supportive care needs (SCN) that may seriously affect their treatment adherence. Accurately assessing patients' SCN is important for providing efficient patient-centred care, but few instruments are suitable for use in clinical practice. Therefore, the purpose of this study was to develop an SCN scale for patients with tuberculosis (SCN-TB) and to evaluate its psychometrical properties.

PATIENTS AND METHODS

Based on the SCN framework, the SCN-TB was designed via a literature review, Delphi consultation and pilot study. Then, 550 patients from four tuberculosis specialist hospitals in Shaanxi Province were enrolled by convenience sampling to further test the validity and reliability of the SCN-TB.

RESULTS

A total of 518 patients completed the survey. The final scale encompasses 25 items in five domains: physical, practical, psycho-emotional, social, and informational. The content validity for the scale was 0.93, with that for each item ranging from 0.80 to 1.00. Five factors that explained 80.38% of the variance were identified in exploratory factor analysis. A five-factor model was then confirmed with confirmatory factor analysis using maximum likelihood estimation with bootstrapping. The model fit indices were χ ²/df=1.062 (Bollen-Stine χ ²=281.382, df=265, p<0.001), CFI=0.997, RMSEA=0.016, SRMR=0.053, NFI=0.951, and GFI=0.929. All factors had acceptable convergent and discriminant validity. The Cronbach's α, split-half, and test-retest reliability coefficients of the scale were 0.884, 0.883, and 0.854, respectively.

CONCLUSION

The SCN-TB is a valid and reliable theory based tool for assessing the needs of patients with tuberculosis and can be applied in both clinical practice and research.

Validation and psychometric properties of the self-efficacy for Appropriate Medication Use Scale in elderly Chinese patients

Background Self-efficacy for appropriate medication use is an important construct when evaluating the optimal use of medications. However, no instrument that assesses this construct in elderly Chinese patients has been shown to have valid psychometric properties. Objective To investigate the psychometric properties of the Chinese version of the self-efficacy for Appropriate Medication Use Scale in elderly patients with type 2 diabetes. Setting Geriatric patients were recruited from the endocrinology department of a tertiary hospital in Shanghai, China. Method Self-efficacy was assessed by the Chinese version of the Self-Efficacy for Appropriate Medication Use Scale in subjects who were at least 65 years old. Exploratory and confirmatory factor analyses were used to develop a psychometrically sound model of the scale. Main outcome measures Internal and test-retest reliability; convergent and discriminant validity of the scale; model fit indices of the factor model. Results The two-factor model of the self-efficacy for Appropriate Medication Use Scale was not suitable for elderly patients with respect to both item factor loadings and model fit indices. Conceptually overlapping scale items emerged when the scale was used in these patients. The final model developed appeared to achieve an ideal model fit and presented acceptable convergent and discriminant validity. Conclusions This study presented a Chinese version of the self-efficacy for Appropriate Medication Use Scale with psychometrically sound properties that will enable pharmacists, nurses and physicians to prospectively evaluate the impact of medication self-efficacy on a variety of health outcomes in elderly patients with type 2 diabetes.