Association of different sleep characteristics and cardiometabolic risk in college students
Objective To describe the association of different sleep characteristics and cardiometabolic risk among college students,so as to provide reference for health promotion of college students.Methods By random cluster sampling method,a questionnaire survey and physical examination including blood pressure,waist circumference and blood lipid indicators,which were conducted in April and May of 2019 among a total of 1 179 college students from the first grade in two universities in Hefei City of Anhui Province and Shangrao City of Jiangxi Province.A total of 729 college students with valid questionnaires were included into a-nalysis.The Pittsburgh Sleep Quality Index(PSQI)and Insomnia Severity Index(ISI)were used to investigate sleep behavior,and the Morning And Evening Questionnaire-5(MEQ-5)was used to investigate sleep characteristics.The cardiometabolic risk score was derived using the sum of the standardized sex-specific Z-scores of waist circumference,mean arterial pressure,HDL cholesterol(multiplied by-1),triglycerides,and insulin resistance index.The rank-sum tests were used to compare differences in cardiometa-bolic risk scores across demographic characteristics.Generalized linear models were used to compare the association of different sleep characteristics with cardiometabolic risk scores among college students.Results The average cardiovascular metabolic risk score of college students was-0.32(-2.03,1.58).There were statistically significant differences in cardiovascular metabolic risk scores among college students in variables such as smoking,health status,and physical activity levels(t/F=-3.41,12.88,51.07,P＜0.01).The results of the generalized linear model showed that nighttime preference(B=1.89,95％CI=1.02-3.49),insomnia symptoms(B=3.25,95％CI=1.79-5.90),and short or long sleep duration(B=1.92,95％CI=1.21-3.05)were positively corre-lated with the cardiovascular metabolic risk score of college students(P＜0.05).Conclusions Poor sleep patterns among college students are positively correlated with the risk of cardiovascular metabolism.The sleep behavior of college students should be active-ly changed to reduce the risk of cardiovascular disease.
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