Association between sleep quality and obesity in adolescents
Abstract: Sleep quality can be
measured by the Pittsburgh Sleep Quality Index (PSQI). One component of the
PSQI is duration of sleep, which is often highly inadequate in adolescents.
Inadequate sleep may lead to obesity in adolescents.
Objective To assess for an association between sleep quality and
incidence of obesity in adolescents.
Methods This case–control study was conducted at Santo Thomas I Senior
High School, Medan, North Sumatera, from
July to August 2015. A total of 227 adolescents were divided into two groups:
the case group consisting of 101 obese adolescents and the control group
consisting of 126 non-obese adolescents. Study data was collected by
questionnaires and PSQI. We interviewed subjects on their food consumption for
the three days prior and calculated their average caloric intake. The data were
analyzed by non-paired T-test, Chi-square, Mann-Whitney, and multivariate
analyses.
Results There was a significant association between sleep quality and
obesity [OR 3.87 (95%CI 1.920 to 7.829)]. Median PSQI (range) score in the
obese group was significantly higher than in the non-obese group [6.00 (2-16)
vs. 5.00 (2-12), respectively (P=0.0001)]. In addition, sleep latency (P=0.002)
and sleep duration (P=0.0001) were significantly different between groups.
Multivariate analysis revealed a significant association between poor sleep
quality and high caloric intake.
Conclusion Sleep duration in obese adolescents is significantly shorter
than that in non-obese adolescents. In addition, sleep latency in obese
adolescents was significantly longer than that in non-obese adolescents.
Keywords: sleep quality;
obesity; adolescents
Author: Nova Juliana Sagala,
Sri Sofyani, Supriatmo
Journal Code: jpkedokterangg170069
