Psychometric properties and observational data for COVID-19 Yorkshire Rehabilitation Scale (C19-YRSm) for post-COVID-19 syndrome.

BACKGROUND: The recently developed modified COVID-19 (coronavirus of 2019) Yorkshire Rehabilitation Scale (C19-YRSm) captures comprehensive biopsychosocial components of WHO's International Classification of Functioning, Disability, and Health related to the Long Covid or post-COVID syndrome. The scale response categories on C19-YRSm were done post hoc on data collected from the original version of C19-YRS. AIM: To evaluate the C19-YRSm scale using reliability and validity measures. DESIGN: Prospective, observational study. METHODS: The study includes 369 patients (clinical group) and 426 subjects of the general population (control group) and captures their post-COVID-19 symptoms. In addition, the reliability of C19-YRSm was estimated by Cronbach's alpha coefficients of internal consistency and inter-item correlations for subscales ('Symptom severity, Functional disability, and Other symptoms'). Convergent validity was established using correlations between C19-YRSm and Fatigue Severity Scale (FSS). The incremental validity of C19-YRSm was measured by introducing a hierarchical regression model using the C19-YRSm 'Overall health' subscale and FSS as criterion variables. RESULTS: C19-YRSm subscales have excellent internal consistencies (Cronbach's α value 0.81-0.96) and acceptable inter-item correlations (r value 0.23-0.79). Hereafter, the convergent validity of the C19-YRSm is good due to significant correlations between C19-YRSm subscales and FSS and C19-YRSm subscales. Finally, the hierarchical regression analysis supported consistent evidence for the incremental validity of the C19-YRSm subscales. CONCLUSION: C19-YRSm is a reliable and valid self-assessment scale for the assessment of post-COVID-19 syndrome.

Tuberculosis knowledge among patients in out-patient settings in Split, Croatia.

SETTING: Patients of five randomly selected general practitioners in Split, Croatia. OBJECTIVE: To investigate knowledge about tuberculosis (TB) and to identify target groups for information, education and communication activities. DESIGN: Cross-sectional survey based on a structured questionnaire using a convenience sampling among subjects aged > or =18 years. Data were stratified by sex, age group, educational background, personal monthly income and contact with TB patients. TB knowledge scores were determined from the number of correct answers to 12 selected questions. RESULTS: The questionnaires were completed by 386 subjects. No statistically significant differences were observed between females and males with respect to age, educational background or contact with TB patients, except for personal income, which was higher in males (P < 0.001). The mean TB knowledge score was 9.4 +/- 1.98 (range 1-12, median 10). A low score was associated with the youngest age group, 18-29 years (P = 0.018), and with <12 years of education (P = 0.002). CONCLUSION: Educational background and age groups of respondents were important determinants of TB knowledge. Although the study sample showed a satisfactory level of knowledge, the results demonstrated several misconceptions that need to be clarified. Uncertainties in core TB knowledge need to be addressed choosing less educated and young people as specific target groups.