Relationship between sleep duration and TV time with cardiometabolic risk in adolescents
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(2020) 25:42
Environmental Health and Preventive Medicine
RESEARCH ARTICLE
Open Access
Relationship between sleep duration and TV time with cardiometabolic risk in adolescents Ana Paula Sehn1, Anelise Reis Gaya2, Arieli Fernandes Dias2, Caroline Brand1, Jorge Mota3, Karin Allor Pfeiffer4, Javier Brazo Sayavera5, Jane Dagmar Pollo Renner6 and Cézane Priscila Reuter7*
Abstract Objective: To verify the association between sleep duration and television time with cardiometabolic risk and the moderating role of age, gender, and skin color/ethnicity in this relationship among adolescents. Methods: Cross-sectional study with 1411 adolescents (800 girls) aged 10 to 17 years. Television time, sleep duration, age, gender, and skin color/ethnicity were obtained by self-reported questionnaire. Cardiometabolic risk was evaluated using the continuous metabolic risk score, by the sum of the standard z-score values for each risk factor: high-density lipoprotein cholesterol, triglycerides, glycemia, cardiorespiratory fitness, systolic blood pressure, and waist circumference. Generalized linear regression models were used. Results: There was an association between television time and cardiometabolic risk (β, 0.002; 95% CI, 0.001; 0.003). Short sleep duration (β, 0.422; 95% CI, 0.012; 0.833) was positively associated with cardiometabolic risk. Additionally, age moderated the relationship between television time and cardiometabolic risk (β, − 0.009; 95% CI, − 0.002; − 0.001), suggesting that this relationship was stronger at ages 11 and 13 years (β, 0.004; 95% CI, 0.001; 0.006) compared to 13 to 15 years (β, 0.002; 95% CI, 0.001; 0.004). No association was found in older adolescents (β, 0.001; 95% CI, − 0.002; 0.002). Conclusions: Television time and sleep duration are associated with cardiometabolic risk; adolescents with short sleep have higher cardiometabolic risk. In addition, age plays a moderating role in the relationship between TV time and cardiometabolic risk, indicating that in younger adolescents the relationship is stronger compared to older ones. Keywords: Sleep; Television; Metabolic syndrome; Adolescent
Introduction In recent years, there has been an increase in cases of Brazilian adolescents with cardiometabolic risk [1]. This situation has raised concerns among health professionals, as it is related to the emergence of cardiovascular diseases [2] and other health disorders [3]. Several * Correspondence: [email protected] 7 Graduate Program in Health Promotion, Department of Health Sciences, University of Santa Cruz do Sul (UNISC), Av. Independência, 2293, Santa Cruz do Sul, RS 96815-900, Brazil Full list of author information is available at the end of the article
lifestyle factors are known to influence the early development of cardiometabolic risk and the occurrence of cardiovascular diseases, such as time spent watching television (TV) [4], sleep duration [5], physical inactivity, and food habits [6]. In addition, excess body weight is also a factor that seems to be related to the development of these dis
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