Beziehungen zwischen Lebensqualität, Verhaltensproblemen und Lipidstoffwechsel bei Jugendlichen
Associations between quality of life, behavioral problems and lipid metabolism in youth
by Carolin Brüning
Date of Examination:2018-11-26
Date of issue:2018-11-22
Advisor:Prof. Dr. Thomas Meyer
Referee:Prof. Dr. Knut Brockmann
Referee:Prof. Dr. Dr. h.c. Michael Oellerich
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Abstract
English
Earlier studies in adults have found associations between psychological distress and quality of life as well as serum lipid concentrations. However, no data are available in children and adolescents. In a post-hoc-analysis using data from the Kinder-und-Jugendgesundheitssurvey (KiGGS) performed by the Robert Koch Institute, Berlin, from 2003 to 2006, serum concentrations of lipids from n=7697 adolescents between 11 and 17 years of age were correlated with results from psychometric assessments. Psychometric testing included the established Strengths and Difficulties Questionnaire (SDQ) as well as the well-validated KINDL-R questionnaire, which measures the health-related quality of life in children. The two questionnaires were used in both self-rating and parent-rating versions. Univariate analysis showed a significantly negative correlation between serum tri-glyceride concentrations and the total KINDL-R score in the self-estimated version (r=-0.029, p=0.016), whereas a significantly positive association with the self-estimated SDQ total score was found (r=0.053, <0.001). Similarly, parental assessments demonstrated a link between psychosocial problems and serum triglyceride values (r=0.048, p<0.001). A significantly positive correlation was found between serum HDL cholesterol and the KINDL total score in both self- (r=-0.030, p=0.011) and parent-rated versions (r=-0.050, p<0.001). There was a significantly negative correlation between the SDQ total score and serum HDL cholesterol in both self- and parent-rated assessment (r=0.036, p=0.003, and r=0.054, p<0.001, respectively). Serum total cholesterol and LDL cholesterol did not show significant correlations with KINDL-R and SDQ scores. In multivariate regression analysis adjusted for age, sex, BMI and total cholesterol, there was an independent predictive effect of serum triglyceride values on self-rated quality of life (standardized beta coefficient=-0.026, 95%-confidence interval (CI)=-2.351 to -0.040, p=0.043). Furthermore, serum triglyceride concentrations showed a multivariate independent relation with parent-rated SDQ scores (standardized beta coefficient=0.028, 95%-CI=0.052 to 1.197, p=0.033). In multivariate models adjusted for sex, age and BMI, HDL cholesterol was an independent predictor of the parentally assessed quality of life (standardized beta coefficient=0.040, 95%-CI=1.533 to 6.740, p=0.002). These associations observed here may be epidemiologically relevant in adolescents.
Keywords: lipid metabolism; quality of life; KiGGS; SDQ; KINDL-R; adolescents; atherosclerosis; triglycerides; LDL