Translation, cultural adaptation and validation for Brazilian Portuguese of the Cardiff Acne Disability Index instrument

Abstract BACKGROUND: The Cardiff Acne Disability Index was originally developed in English for measuring quality of life of acne patients. Considering the psychosocial impact of this disease, it is important to have instruments culturally and linguistically validated for use in Brazilian adolescents. OBJECTIVE: To translate the Cardiff Acne Disability Index into Brazilian Portuguese, culturally adapt it, and verify its reliability and validity in adolescent patients with acne. METHODS: In the first step, the Cardiff Acne Disability Index was translated and validated linguistically to Brazilian Portuguese in accordance with international guidelines published. In the second step, the validation of the Cardiff Acne Disability Index into Brazilian Portuguese instrument was performed, when patients aged from 12 to 20 years with acne were selected. The participants were interviewed to collect demographic data, submitted to the classification of acne by the Global Acne Grading System and invited to respond the Cardiff Acne Disability Index into Brazilian Portuguese version and DLQI (>16 years) or CDLQI (≤16 years). The internal consistency of Cardiff Acne Disability Index into Brazilian Portuguese was assessed by Cronbach’s alpha coefficient and concurrent validity was measured by the Spearman correlation coefficient and Student ‘s t-test for paired samples. RESULTS: The study included 100 adolescents. The Cardiff Acne Disability Index into Brazilian Portuguese version showed good reliability and internal consistency (Cronbach’s alpha = 0.73). The concurrent validity of the scale was supported by a strong and significant correlation with CDLQI / DLQI instruments (rs=0.802;p<0.001). CONCLUSIONS: Cardiff Acne Disability Index into Brazilian Portuguese version is a reliable, valid and valuable tool to measure the impact of acne on quality of life in adolescent patients.

Knowledge about emergency contraception among women referred for treatment at a university hospital in Brazil

BACKGROUND: Emergency contraception (EC) has many important indications. The aim of the study was to investigate the prevalence of use and knowledge about the correct use of EC among women referred for treatment at a university hospital in Brazil. AIM: The aim of the study was to investigate the prevalence of use and knowledge about the correct use of EC among women referred for treatment at a university hospital in Brazil. METHODS: Study Design: Cross-sectional study. Settings: The study was conducted with patients admitted to the Hospital de Clínicas de Porto Alegre (HCPA) from 2009 to 2010. Patients: Sexually active women aged 18 to 50 years. Interventions: Patients answered a questionnaire on the use of and knowledge about EC. Main Outcome Measures: Primary outcome: prevalence of knowledge about correct EC use. Secondary outcome: prevalence of EC use. RESULTS: 134 patients participated in this study. 61.2% of women reported regular use of birth control pills, 18.7% of condoms, 9.0% of other methods, 3.0% of intrauterine device, and 8.1% used no contraceptive method. As for EC, 86.5% of interviewees reported having knowledge about the method, and 43.1% of these reported knowing how to use EC. However, only 12.0% of interviewees correctly reported how EC should be used. The prevalence of EC use in our sample was 19.4%. CONCLUSIONS: Although most interviewees reported having some knowledge about EC, only a small number were able to accurately describe its proper use.