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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Evaluating oral health-related quality of life measure for children and preadolescents with temporomandibular disorder | Barbosa et al. Health and Quality of Life Outcomes 2011 9 32 http www.hqlo.eom content 9 1 32 HEALTH AND QUALITY OF LIFE OUTCOMES RESEARCH Open Access Evaluating oral health-related quality of life measure for children and preadolescents with temporomandibular disorder Taís S Barbosa1 Marina S Leme1 Paula M Castelo2 and Maria Beatriz D Gavião1 Abstract Background Oral health-related quality of life OHRQoL in children and adolescents with signs and symptoms of temporomandibular disorder TMD has not yet been measured. This study aimed to evaluate the validity and reliability of OHRQoL measure for use in children and preadolescents with signs and symptoms of TMD. Methods Five hundred and forty-seven students aged 8-14 years were recruited from public schools in Piracicaba Brazil. Self-perceptions of QoL were measured using the Brazilian Portuguese versions of Child Perceptions Questionnaires CPQ 8-10 n 247 and CPQ11-14 n 300 . A single examiner trained and calibrated for diagnosis according to the Axis I of the Research Diagnostic Criteria for TMD RDC TMD examined the participants. A selfreport questionnaire assessed subjective symptoms of TMD. Intraexaminer reliability was assessed for the RDC TMD clinical examinations using Cohen s Kappa ft and intraclass correlation coefficient ICC . Criterion validity was calculated using the Spearman s correlation construct validity using the Spearman s correlation and the Mann-Whitney test and the magnitude of the difference between groups using effect size ES . Reliability was determined using Cronbach s alpha alpha if the item was deleted and corrected item-total correlation. Results Intraexaminer reliability values ranged from regular k 0.30 to excellent k 0.96 for the categorical variables and from moderate ICC 0.49 to substantial ICC 0.74 for the continuous variables. Criterion validity was supported by significant associations between both CPQ scores and pain-related questions for the TMD groups. Mean CPQ8-10 scores were .
