Relationship Between Sleep Time、watching TV Time And The Incidence Of Metabolic Syndrome Among Adults Aged 40 Or Older In Guiyang City :a Prospective Cohort Study

Objective: The metabolic syndrome(MS) is a cluster of interrelated common clinical disorders, including obesity, diabetes or glucose intolerance, hypertension, and dyslipidemia. Epidemiology surveys were conducted in the United States, South Korea and other countries, in Taiwan, Beijing and other places of China。High rates of morbidity were showed in healthy people. But incidence about MS, there had not been reported in Guiyang city. In this study, using the method of prospective cohort study,to examine the incidence of MS and its association between sleep time, watching TV time among people aged 40 or older in Guiyang city. these provide the basis for chronic disease prevention and control of guiyang city and even the whole country. Methods: Data was obtained at the baseline examination of “The epidemiological study on the risk of cancer in patients with type 2 diabetes in China” in 2011. Follow-up study was conducted in 2014~2015. We Took the survey population in 2011 to 1 0140, excluding MS patients with 4 061, 105 cardiovascular patients, incomplete information of 124, a total of 5 850 people was into the follow-up. After 3 yeas followed, the follow-up rate was 75.1%. A total of 4 392(female 2 987, male 1 405) were included in the analysis. We investigated the demographic characteristics, smoking, drinking, sleep time, watching TV time, et al. Biochemical tests and the physical examination were also been done in all.Sleep time was divided into <7 h/d, 7 ~ 9 and >9 h/d. watching TV time was classified into 0 ~ 1 h/d, 1.1 ~ 2 h/d, 2.1 ~ 4 h/d, > 4 h/d. Using the binary classification logistics model, analyze the relation between sleep time, viewing TV time and incidence of MS. Results: According to diagnostic criteria of International Diabetes Federation(IDF) in 2005,1 035(812 women, 223 men) of the cohort developed MS during an average following up of 3 years. Sleep time was classified as ≤7 h/d,7~9 h/d,≥9 h/d, the incidence of MS was 24.46%, 22.43%, 23.65% in all, it had not significance in statistics(P>0.05). MS of women morbidity was 28.52%, 25.58%, 27.19%, there was no statistical significance between group(P>0.05). The male was 15.81%, 15.4%, 16.85%, but it didn’t reach significance from a statistical standpoint(P>0.05). Watching TV time was divided into 0~1 h/d, 1.1~2 h/d, 2.1~4 h/d, >4 h/d, the incidence rate of the all was 20.67%, 22.91%, 24.61%, 25.76%. It had significance in statistics for female and all(P<0.05), but not male(P>0.05). After multivariate logistics regression analysis, compared with 0~1h/d, the RR(95%CI) value of whole with watching TV time during 1.1~2h/d, 2.1~4h/d, >4h/d was 1.068(0.837~1.361), 1.081(0.869~1.343), 1.184(0.911~1.540)(χ2=1.612, P>0.05). Compared with 0~1h/d, the RR(95%CI) value of women with viewing TV time during 1.1~2h/d, 2.1~4h/d, >4h/d was 1.098(0.789~1.528), 1.416(1.052~1.906), 1.559(1.090~2.233)(χ2=9.360, P<0.05). Conclusion: The standardized incidence rate of MS in the general population was 23.12%, the crude rate was 23.57%. Women, s standardized incidence rate of 27.43%, crude incidence rate 27.18%, standardized incidence rate of male was 16.05%, crude incidence rate was 15.87%. The incidence of MS was unrelated to the sleep time and watching TV time in all and male. Female, watching TV more than 2 hours a day can increase the risk for MS, evidently.