Combined effects of shift work and life-style on the prevalence of insomnia, sleep deprivation and daytime sleepiness

Abstract

Objectives The combined effects of age, leisure-time physical activity, smoking, alcohol consumption, and different forms of shift work on the prevalence of sleep compIaints and daytime sleepiness were studied among workers in industly, transport, and traffic. Methods Altogether 3020 subjects were studied using a psychosocial questionnaire. The participants were currently employed men, aged 45-60 years, from a postal and telecommunication agency, the railway company, and 5 industrial companies. On the basis of a factor analysis of an 1 I-item sleep questionnaire, the sleep complaints were grouped into the categories of insomnia, sleep deprivation, daytime sleepiness, and snoring. The importance of the shift schedule, age, and lifestyle factors as simultaneous predictors of the complaints was studied in a logistic regression analysis and an analysis of covariance. Results The prevalence of insomnia, sleep deprivation, and daytime sleepiness depended significantly on the shift system. All sleep complaints were more common in 2-and 3-shift work and in irregular shift work than in day work. The prevalence of daytime sleepiness was 20-37%, depending on the shift system. Leisure-time physical activity and alcohol consumption were the most important lifestyle factors predicting all sleep complaints, except snoring. The effects of physical activity and alcohol consumption differed for different shift schedules. C O~~C~U S~O~~S Different shift systems, also 2-shift work and permanent night work, seem to increase the frequency of sleep complaints. Especially 3-shift work seems to interact with lifestyle factors by increasing the adverse effects and decreasing the beneficial effects on sleep and sleepiness.

Conflict Between Work and Family Roles and Satisfaction among Nurses in Different Shift Systems in Croatia: a Questionnaire Survey

“…The risks of making an error at work were signifi cantly increased when work shifts were longer than twelve hours, when nurses worked overtime, or when they worked more than forty hours per week (12). Extended daily working hours have both negative (example fatigue) and positive effects (more time for the family, social life, and domestic duties) (13)(14)(15)(16)(17).…”

Association between Job Stress and Insomnia in Korean Workers

“…In addition, as mentioned above, work-related conditions can be an important factor of disturbed sleep 3,6) . For example, shift work is a well-known occupational risk factor for insomnia, and there is emerging evidence that individuals with shift work are at higher risk for lack of sleep 7,11) . Job stress has also been suspected to be an occupational risk factor for insomnia with the evidence showing a significant relationship between job stresses and sleeping problems including insomnia [12][13][14] .…”

“…Insomnia can be brought on by psychosocial causes, comorbid medical disorders, and other factors (i.e., overuse of caffeine and alcohol, jet leg, and prescription drugs) [2][3][4][5] . Occupational risk factors, such as shift work and job stress, can be also linked to insomnia 6,7) . Insomnia impacts many aspects of life from individual health and well-being to social or occupational areas.…”

Night shift working and its impact on sleep quality, calorie intake, and serum thyroid stimulating hormone level among health-care workers in a tertiary hospital, Bengaluru

“…This is independent of smoking, drinking habits, and levels of physical activity. [4,5] The common sleep problems associated with night shift workers are sleep latency, i.e., difficulty getting to sleep, insufficient sleep duration, and the feeling of not being refreshed even after a good sleep. [5,6] The eating behavior among night shift workers could be altered due to diverse range of biological, cultural, and social factors.…”

“…[4,5] The common sleep problems associated with night shift workers are sleep latency, i.e., difficulty getting to sleep, insufficient sleep duration, and the feeling of not being refreshed even after a good sleep. [5,6] The eating behavior among night shift workers could be altered due to diverse range of biological, cultural, and social factors. [7][8][9] This can be explained as, that the night shift work causes a conflict between socially determined meal schedules and the circadian biological rhythms in hunger, satiety, and metabolism.…”