Modeling the change trajectory of sleep duration and its associated factors: based on an 11-year longitudinal survey in China

Abstract

Background Sleep duration is a vital public health topic, yet most existing studies have been limited to cross-sectional surveys or inconsistent classifications of sleep duration categories, and few characterized its continuous development process. The current study aimed to depict its change trajectory in the general population and identify associated factors from a dynamic perspective. Methods A total of 3788 subjects (45.4% male, mean age 46.72 ± 14.89 years) from the China Health and Nutrition Survey were recruited, and their daily sleep duration for five consecutive measurements from 2004 to 2015 was recorded. We adopted latent growth modelling to establish systematic relations between sleep duration and time. Participants’ sociodemographic characteristics, lifestyle, and health factors were taken as covariates. Results The change in sleep duration could be depicted by a linear decreasing trajectory with the mean yearly decrease at 2.5 min/day. The trajectory did not differ by residence, BMI category, chronic disease situation, smoking status, or drinking status. Moreover, there were sex and age differences in the trajectory, and females and those under 30 were prone to larger decrease rates. Conclusion The quantified yearly change in sleep duration provided insights for the prediction and early warning of insufficient sleep. Public health interventions focusing on slowing down the decrease rates among females and young individuals are warranted.

The prevalence and associated factors of sleep deprivation among healthy college students in China: a cross-sectional survey

“…The prevalence of sleep deprivation among college students in China is significantly higher than Chinese population. Fang et al (2021) reported the prevalence was 23.6%, 25.3%, 28.9%, 31.9%, and 33.1% in 2004, 2006, 2009, 2011, and 2015 respectively among the Chinese population. It suggests that sleep deprivation is more severe among college students.…”

“…Two explanations were proposed for this phenomenon. First, due to the nation’s rapid economic development, especially the establishment of logistical supply chains and internet-based technologies, which give people access to media and entertainment conveniently, people are sleeping shorter ( Fang et al, 2021 ). Secondly, most Chinese college students are free from the supervision of their parents and start to live independently when they go to college.…”

How sleep and fatigue shape statements in evidence: A psycho-legal perspective

“…Even such a minor curtailment accumulates to more than an hour of missed sleep per week. These sleep deficits may be especially severe for some individuals or regions owing to social inequities in sleep opportunities and broader societal changes that undermine sleep (Grandner, 2017;Fang et al, 2021;Caraballo et al, 2022).…”

Relationship of sleep duration with incident cardiovascular outcomes: a prospective study of 33,883 adults in a general population

“…As a modifiable lifestyle, sleep is closely associated with cardiovascular functions, such as heart rate, blood pressure, or cardiac output [ 2 ]. Changes in society and technology influence sleep in many aspects, including sleep quality and sleep duration in the population [ 3 , 4 ]. A study on sleep trends among adults in the United States showed that the probability of short sleep in the population gradually increased from 2007 to 2017 [ 5 ].…”