[1] Watson NF, Badr MS, Belenky G, et al. Joint consensus statement of the American academy of sleep medicine and sleep research society on the recommended amount of sleep for a healthy adult: methodology and discussion. Sleep, 2015; 38, 1161−83. doi:  10.5665/sleep.4886
[2] Watson NF, Badr MS, Belenky G, et al. Joint consensus statement of the American academy of sleep medicine and sleep research society on the recommended amount of sleep for a healthy adult: methodology and discussion. J Clin Sleep Med, 2015; 11, 931−52. doi:  10.5664/jcsm.4950
[3] Jike M, Itani O, Watanabe N, et al. Long sleep duration and health outcomes: a systematic review, meta-analysis and meta-regression. Sleep Med Rev, 2018; 39, 25−36. doi:  10.1016/j.smrv.2017.06.011
[4] Svensson T, Saito E, Svensson AK, et al. Association of sleep duration with all- and major-cause mortality among adults in Japan, China, Singapore, and Korea. JAMA Netw Open, 2021; 4, e2122837. doi:  10.1001/jamanetworkopen.2021.22837
[5] Park S, Lee S, Kim Y, et al. Short or long sleep duration and CKD: a Mendelian randomization study. J Am Soc Nephrol, 2020; 31, 2937−47. doi:  10.1681/ASN.2020050666
[6] Ai SZ, Zhang JH, Zhao GA, et al. Causal associations of short and long sleep durations with 12 cardiovascular diseases: linear and nonlinear Mendelian randomization analyses in UK Biobank. Eur Heart J, 2021; 42, 3349−57. doi:  10.1093/eurheartj/ehab170
[7] Ma YJ, Liang LR, Zheng FF, et al. Association between sleep duration and cognitive decline. JAMA Netw Open, 2020; 3, e2013573. doi:  10.1001/jamanetworkopen.2020.13573
[8] Cappuccio FP, D'Elia L, Strazzullo P, et al. Sleep duration and all-cause mortality: a systematic review and meta-analysis of prospective studies. Sleep, 2010; 33, 585−92. doi:  10.1093/sleep/33.5.585
[9] Liu TZ, Xu C, Rota M, et al. Sleep duration and risk of all-cause mortality: a flexible, non-linear, meta-regression of 40 prospective cohort studies. Sleep Med Rev, 2017; 32, 28−36.
[10] Wang K, Hu L, Wang L, et al. Midday napping, nighttime sleep, and mortality: prospective cohort evidence in China. Biomed Environ Sci, 2023; 36, 702−14.
[11] Bin YS, Marshall NS, Glozier N. Sleeping at the limits: the changing prevalence of short and long sleep durations in 10 countries. Am J Epidemiol, 2013; 177, 826−33. doi:  10.1093/aje/kws308
[12] Chu Y, Aune D, Yu C, et al. Temporal trends in sleep pattern among Chinese adults between 2010 and 2018: findings from five consecutive nationally representative surveys. Public Health, 2023; 225, 360−8. doi:  10.1016/j.puhe.2023.10.004
[13] Zhao ZP, Wang LM, Li YC, et al. Provincial representativeness assessment of China non-communicable and chronic disease risk factor surveillance system in 2013. Chin J Prev Med, 2018; 52, 165−9. (In Chinese)
[14] Wang LM, Zhang M, Li YC, et al. Scheme of the Chinese chronic non-communicable disease and risk factor surveillance. Chin J Prev Med, 2018; 52, 191−4. (In Chinese)
[15] Zhang M, Wang LH, Wu J, et al. Data resource profile: China Chronic Disease and Risk Factor Surveillance (CCDRFS). Int J Epidemiol, 2022; 51, e1−8. doi:  10.1093/ije/dyab255
[16] Zhang M, Shi Y, Zhou B, et al. Prevalence, awareness, treatment, and control of hypertension in China, 2004-18: findings from six rounds of a national survey. BMJ, 2023; 380, e071952.
[17] Wang LM, Zhou B, Zhao ZP, et al. Body-mass index and obesity in urban and rural China: findings from consecutive nationally representative surveys during 2004-18. Lancet, 2021; 398, 53−63. doi:  10.1016/S0140-6736(21)00798-4
[18] Caraballo C, Mahajan S, Valero-Elizondo J, et al. Evaluation of temporal trends in racial and ethnic disparities in sleep duration among US adults, 2004-2018. JAMA Netw Open, 2022; 5, e226385. doi:  10.1001/jamanetworkopen.2022.6385
[19] Zhou BF, Cooperative Meta-Analysis Group of the Working Group on Obesity in China. Predictive values of body mass index and waist circumference for risk factors of certain related diseases in Chinese adults--study on optimal cut-off points of body mass index and waist circumference in Chinese adults. Biomed Environ Sci, 2002; 15, 83-96.
[20] Joint Committee for Guideline Revision. 2018 Chinese guidelines for prevention and treatment of hypertension-a report of the revision committee of Chinese guidelines for prevention and treatment of hypertension. J Geriatr Cardiol, 2019; 16, 182−241.
[21] American Diabetes Association. 2. Classification and diagnosis of diabetes: standards of medical care in diabetes-2021. Diabetes Care, 2021; 44, S15−33. doi:  10.2337/dc21-S002
[22] Ford ES, Cunningham TJ, Croft JB. Trends in self-reported sleep duration among US adults from 1985 to 2012. Sleep, 2015; 38, 829−32. doi:  10.5665/sleep.4684
[23] Sheehan CM, Frochen SE, Walsemann KM, et al. Are U. S. adults reporting less sleep?: Findings from sleep duration trends in the National Health Interview Survey, 2004-2017. Sleep, 2019; 42, zsy221. doi:  10.1093/sleep/zsy221
[24] Chen YP, Kartsonaki C, Clarke R, et al. Characteristics and correlates of sleep duration, daytime napping, snoring and insomnia symptoms among 0.5 million Chinese men and women. Sleep Med, 2018; 44, 67−75. doi:  10.1016/j.sleep.2017.11.1131
[25] Park K, Kim J. Longitudinal association between perceived discrimination and sleep problems among young adults in the United States: tests of moderation by race/ethnicity and educational attainment. Soc Sci Med, 2023; 321, 115773. doi:  10.1016/j.socscimed.2023.115773
[26] Kim J, Son H. Adolescent delinquent behavior and sleep deficiency: a test of multiple mechanisms using sibling comparison designs. Eur Child Adolesc Psychiatry, 2023; 32, 167−76. doi:  10.1007/s00787-022-02054-y