Yu-Xi Qian1, Jing-Hong Liu1, Qing-Hua Ma2, Hong-Peng Sun1, Yong Xu1, Chen-Wei Pan3. 1. School of Public Health, Medical College of Soochow University, Suzhou, China. 2. The 3rd People's Hospital of Xiangcheng District, Suzhou, China. 3. School of Public Health, Medical College of Soochow University, Suzhou, China. pcwonly@gmail.com.
Abstract
PURPOSE: There is a lack of data on the role of sleep in the development of metabolic syndrome (MetS) in older adults. We aimed to examine the associations of sleep durations at night and other sleep-related parameters with the presence of MetS in older Chinese adults. METHODS: Data of 4579 individuals aged 60 years or older from the Weitang Geriatric Disease Study were analyzed. MetS was diagnosed based on the Adult Treatment Panel III (ATP III) criteria. Information regarding sleep durations and other sleep-related parameters was collected by questionnaires. RESULTS: Compared with those with daytime napping, individuals without daytime napping were at an increased risk of MetS (odds ratio [OR] = 1.23; 95% confidence interval [CI] = 1.03-1.47). Each hour increase in daytime napping increased the risk of MetS by 33% (OR = 1.33; 95% CI = 1.15-1.52). After adjusting for the effect of age and gender, a J-shaped association between sleep durations at night and the presence of MetS was observed. The risk of MetS was lowest among those who slept 7-8 h at night. Gender-stratified analysis indicated that the J-shaped relationship between sleep durations at night and MetS remained significant in men but not in women. CONCLUSIONS: In older Chinese adults, sleep durations at night might have a dual effect on the risk of MetS and this effect was particularly pronounced in men. The results indicated that circadian rhythm might play an important role in the development of MetS in older populations.
PURPOSE: There is a lack of data on the role of sleep in the development of metabolic syndrome (MetS) in older adults. We aimed to examine the associations of sleep durations at night and other sleep-related parameters with the presence of MetS in older Chinese adults. METHODS: Data of 4579 individuals aged 60 years or older from the Weitang Geriatric Disease Study were analyzed. MetS was diagnosed based on the Adult Treatment Panel III (ATP III) criteria. Information regarding sleep durations and other sleep-related parameters was collected by questionnaires. RESULTS: Compared with those with daytime napping, individuals without daytime napping were at an increased risk of MetS (odds ratio [OR] = 1.23; 95% confidence interval [CI] = 1.03-1.47). Each hour increase in daytime napping increased the risk of MetS by 33% (OR = 1.33; 95% CI = 1.15-1.52). After adjusting for the effect of age and gender, a J-shaped association between sleep durations at night and the presence of MetS was observed. The risk of MetS was lowest among those who slept 7-8 h at night. Gender-stratified analysis indicated that the J-shaped relationship between sleep durations at night and MetS remained significant in men but not in women. CONCLUSIONS: In older Chinese adults, sleep durations at night might have a dual effect on the risk of MetS and this effect was particularly pronounced in men. The results indicated that circadian rhythm might play an important role in the development of MetS in older populations.
Authors: Tze Pin Ng; Liang Feng; Ma Shwe Zin Nyunt; Lei Feng; Qi Gao; May Li Lim; Simon L Collinson; Mei Sian Chong; Wee Shiong Lim; Tih Shih Lee; Philip Yap; Keng Bee Yap Journal: JAMA Neurol Date: 2016-04 Impact factor: 18.302
Authors: Antti-Jussi Pyykkönen; Bo Isomaa; Anu-Katriina Pesonen; Johan G Eriksson; Leif Groop; Tiinamaija Tuomi; Katri Räikkönen Journal: Ann Med Date: 2014-05-09 Impact factor: 4.709