Reliability and validity of the Brazilian version of the Pittsburgh Sleep Quality Index in adolescents
Journal Title: Jornal de Pediatria - Year 2017, Vol 93, Issue 2
Abstract
Objective To evaluate the reliability and validity of the Brazilian version of the Pittsburgh Sleep Quality Index. Methods 309 adolescents, subdivided into a sample of 209 subjects, of whom 25 were reassessed, and another sample of 100 adolescents. Reliability was assessed using Cronbach's α-values, intraclass correlation coefficient, Standard Error of Measure, Minimum Detectable Change, and Bland–Altman plotting. Exploratory analysis of the questionnaire components was performed based on the sample of 209 adolescents. Confirmatory factor analysis was performed with a sample of 100 individuals. Results The sample of 209 participants had a mean age of 14.38 (±1.94) years, comprising 80 (38.3%) girls and 129 (61.7%) boys. The sample of 100 adolescents had a mean age of 13.66 (±2.35) years, comprising 51 (51%) girls and 49 (49%) boys. The questionnaire obtained a Standard Error of Measure=1.12 and Minimum Detectable Change=3.10. Cronbach's α was 0.71 and the Intraclass Correlation Coefficient was 0.65 (95% CI: 0.21–0.85). The factor analysis showed that the best model of components was the one that consisted of two factors, excluding the component on the use of sleep medications. Conclusion The questionnaire showed high internal consistency and moderate reliability. Furthermore, a model with two factors seems to be the most appropriate to evaluate the quality of sleep in adolescents.
Authors and Affiliations
Muana Passos
Keywords
Related Articles
- EP ID EP508715
- DOI 10.1016/j.jped.2016.06.006
- Views 55
- Downloads 0
Impact of health professional training in breastfeeding on their knowledge, skills, and hospital practices: a systematic review
Objective To identify the impact of training in breastfeeding on knowledge, skills, and professional and hospital practices. Data source The systematic review search was carried out through the MEDLINE, Scopus, and LILA...
Duodenal pathologies in children: a single-center experience
Objective Several studies have been performed concerning pathologies of the stomach and esophagus in the pediatric age group. However, there have been very few studies of duodenal pathologies in children. The authors aim...
Waist-to-height ratio is as reliable as biochemical markers to discriminate pediatric insulin resistance
Objective Given the importance of incorporating simple and low-cost tools into the pediatric clinical setting to provide screening for insulin resistance, the present study sought to investigate whether waist-to-height r...
Correlation of body mass index Z-scores with glucose and lipid profiles among overweight and obese children and adolescents
Objective To evaluate the prevalence of abnormalities in plasma lipid and glucose profiles among overweight and obese children and adolescents, and to assess the presence of a correlation between body mass index Z-scores...
Some flaws that could change the effect sizes and limit the extrapolation of these results
Dear Editor, We have carefully read the article published by de Mello et al.,1 and we have found several important issues to discuss.