Metabolic syndrome and shift work: A systematic review

Canuto, Raquel; Garcez, Anderson; Olinto, Maria Teresa Anselmo

doi:10.1016/j.smrv.2012.10.004

Cited by 107 publications

(99 citation statements)

References 52 publications

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“…However, none of the articles included in that review investigated duration of sleep in the participants (24) . Canuto et al suggested evaluating sleep deprivation as a possible factor mediating the association between shift work and metabolic disorders (25) .…”

Section: Resultsmentioning

confidence: 99%

Sleep deprivation and obesity in shift workers in southern Brazil

Canuto

Pattussi

Macagnan

et al. 2013

Public Health Nutr.

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Objective: The objective of our study was to explore the association between sleep deprivation and obesity among shift workers. Design: A cross-sectional study was conducted. Obesity was defined as BMI $30 kg/m 2 . Time of sleep was categorized as: .5 h of continuous sleep/d; #5 h of continuous sleep/d with some additional rest (sleep deprivation level I); and #5 h of continuous sleep/d without any additional rest (sleep deprivation level II). Sociodemographic, parental and behavioural variables were evaluated by means of a standardized pre-tested questionnaire. Potential confounding factors were controlled for in the multivariable model. Setting: A poultry-processing plant in southern Brazil. Subjects: Nine hundred and five shift workers (63 % female). Results: Obesity was more prevalent in the participants who were female, aged 40 years and older, who had less schooling and reported excess weight in both parents. Sleep deprivation levels I and II were associated with increased income, number of meals consumed throughout the day and nightshift work. All of the workers who exhibited a degree of sleep deprivation worked the night shift. After controlling for potential confounding factors, the prevalence ratios of obesity were 1?4 (95 % CI 0?8, 2?2) and 4?4 (95 % CI 2?4, 8?0) in the workers with sleep deprivation levels I and II, respectively, compared with the reference group. Conclusions: These results show a strong association between sleep deprivation and obesity in shift workers and that sleep deprivation may be a direct consequence of working at night.

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Section: Resultsmentioning

confidence: 99%

Sleep deprivation and obesity in shift workers in southern Brazil

Canuto

Pattussi

Macagnan

et al. 2013

Public Health Nutr.

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“…These showed a positive association between shift work and body weight gain (18) . For the metabolic syndrome, a systematic review by Canuto et al in 2013 of ten studies, identified eight studies that found a positive association between shift work and metabolic syndrome after adjustment for sociodemographic and behavioural factors (19) . However, only three studies also adjusted for sleep duration and these showed conflicting results.…”

Section: Shift Workers Disease Risk and Dietary Patternsmentioning

confidence: 99%

Meal irregularity and cardiometabolic consequences: results from observational and intervention studies

2016

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Studying irregular meal patterns fits in with the latest research focusing not only on what people eat but also when they eat, also called chrono-nutrition. Chrono-nutrition involves studying the impact of nutrition on metabolism via circadian patterns, including three aspects of time: (ir)regularity, frequency and clock time. The present paper aimed to narratively review research on irregular meal patterns and cardiometabolic consequences. Only few cross-sectional studies and prospective cohort studies were identified, and most of these suggested that eating meals irregularly is associated with a higher risk of the metabolic syndrome and cardiometabolic risk factors, including BMI and blood pressure. This was supported by two randomised controlled intervention studies showing that consuming meals regularly for 2 weeks v. an irregular meal pattern, led to beneficial impact on cardiometabolic risk factors as lower peak insulin, lower fasting total and LDL-cholesterol, both in lean and obese women. In conclusion, the limited evidence on meal regularity and cardiometabolic consequences supports the hypothesis that consuming meals irregularly is adversely associated with cardiometabolic risk. However, it also highlights the need for more large-scale studies, including detailed dietary assessment to further advance the understanding of the impact of chrono-nutrition on public health.

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“…A privação do sono está associada a várias consequências adversas, como aumento do apetite [23], comprometimento da sensibilidade à insulina [24][25][26] e aumento dos níveis de colesterol total e de lipoproteína de baixa densidade [27], culminando em distúrbios metabólicos [18,28,29] e doenças cardiovasculares [30][31][32][33].…”

Section: Introductionunclassified

“…Ainda que nos países da América do Sul exista um rápido crescimento da massa laboral admitida em empresas que funcionam 24 horas por dia, em esquemas de turnos, após revisão da literatura nas principais bases de dados internacionais foram localizados poucos estudos que investigaram as consequências da privação de sono sobre a obesidade nessa população [15,16,26]. Assim, o objetivo desse estudo foi investigar a associação entre a privação de sono e a obesidade em trabalhadores que exercem suas atividades laborais em uma empresa que funciona nas 24 horas do dia.…”

Section: Introductionunclassified

Associação entre privação do sono e obesidade em trabalhadores

Benvegnú¹,

Maffessoni²,

Fernandes³

et al. 2016

Sci Med

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Este artigo está licenciado sob forma de uma licença Creative Commons Atribuição 4.0 Internacional, que permite uso irrestrito, distribuição e reprodução em qualquer meio, desde que a publicação original seja corretamente citada. ABSTRACT Aims:To study the association between sleep deprivation and obesity among workers. Methods: We conducted a cross-sectional study of workers at a notebooks manufacturing in southern Brazil, which has three sectors of work (production line, back office and logistics), and the production sector works 24 hours a day. Demographic, socioeconomic, occupational and behavioral characteristics were obtained by a self-completion questionnaire, standardized and pre-tested. Weight and height measurements were self-reported and body mass index calculated. The cutoff point for obesity was ≥30 kg/m². Sleep duration was categorized into at least six hours a day and less than six hours a day (sleep deprivation). For bivariate analysis, chi-square test and test for linear trend were used. The crude and adjusted odds ratios were calculated using Poisson regression. Results:The final sample consisted of 193 workers, with a mean age of 34±11 years, 99 (51%) women. The prevalence of obesity was 27 (13.98%), and the prevalence of sleep deprivation was 40 (20.7%). Sleep deprivation has been associated with the production sector (p=0.011), the night shift (p<0.001) and physical inactivity (p=0.003). The presence of obesity was associated with sleep deprivation (p=0.006). After controlling for potential confounding factors, the likelihood of being obese was 2.37 (95% CI 1.08 to 5.21) times higher among workers in sleep deprivation. Conclusions:The results showed an association between sleep deprivation and obesity. In addition, sleep deprivation was associated with work on the night shift.

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Metabolic syndrome and shift work: A systematic review

Cited by 107 publications

References 52 publications

Sleep deprivation and obesity in shift workers in southern Brazil

Sleep deprivation and obesity in shift workers in southern Brazil

Meal irregularity and cardiometabolic consequences: results from observational and intervention studies

Associação entre privação do sono e obesidade em trabalhadores

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