Shift working and risk of lipid disorders: A cross-sectional study

Ghiasvand, Masoumeh; Heshmat, Ramin; Golpira, Reza; Haghpanah, Vahid; Soleimani, Ali; Shoushtarizadeh, Payman; Tavangar, Seyed Mohammad; Larijani, Bagher

doi:10.1186/1476-511x-5-9

Cited by 84 publications

(52 citation statements)

References 14 publications

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“…However, Atkinson et al 2 posit that these results are not entirely consistent on which non-specifi c lipid concentrations are altered. Ha and Park 11 and Biggi 3 also found that shift-workers have higher cholesterol levels than dayshift workers, whereas Ghiasvand et al 7 found elevated levels of LDL-cholesterol. Irregular-shift workers are at increased risk of developing cardiovascular diseases compared to day-shift workers.…”

Section: Discussionmentioning

confidence: 98%

Effects of irregular-shift work and physical activity on cardiovascular risk factors in truck drivers

2013

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Efeitos do turno irregular de trabalho e atividade física nos fatores de risco cardiovasculares em motoristas de caminhão ABSTRACT OBJECTIVE:To analyze the putative effect of type of shift and its interaction with leisure-time physical activity on cardiovascular risk factors in truck drivers. METHODS:A cross-sectional study was undertaken on 57 male truck drivers working at a transportation company, of whom 31 worked irregular shifts and 26 worked on the day-shift. Participants recorded their physical activity using the International Physical Activity Questionnaire along with measurements of blood pressure, body mass index and waist-hip ratio. Participants also provided a fasting blood sample for analysis of lipid-related outcomes. Data were analyzed using a factorial model which was covariate-controlled for age, smoking, work demand, control at work and social support. RESULTS:Most of the irregular-shift and day-shift workers worked more than 8 hours per day (67.7% and 73.1%, respectively). The mean duration of experience working the irregular schedule was 15.7 years. Day-shift workers had never engaged in irregular-shift work and had been working as a truck driver for 10.8 years on average. The irregular-shift drivers had lower work demand but less control compared to day-shift drivers (p < 0.05). Moderately-active irregular-shift workers had higher systolic and diastolic arterial pressures (143.7 and 93.2 mmHg, respectively) than moderately-active day-shift workers (116 and 73.3 mmHg, respectively) (p < 0.05) as well as higher total cholesterol concentrations (232.1 and 145 mg/dl, respectively) (p = 0.01). Irrespective of their physical activity, irregular-shift drivers had higher total cholesterol and LDL-cholesterol concentrations (211.8 and 135.7 mg/dl, respectively) than day-shift workers (161.9 and 96.7 mg/dl, respectively (ANCOVA, p < 0.05). CONCLUSIONS:Truck drivers are exposed to cardiovascular risk factors due to the characteristics of the job, such as high work demand, long working hours and time in this profession, regardless of shift type or leisure-time physical activity. DESCRIPTORS: MÉTODOS:Um estudo transversal foi conduzido com 57 motoristas de caminhão do sexo masculino que trabalhavam em uma transportadora de cargas, dos quais 31 trabalhavam no turno irregular e 26 no turno diurno. Os participantes registraram sua atividade física por meio do questionário Internacional de atividade física; foi aferida a pressão arterial, calculado o índice de massa corporal e a relação cintura-quadril; e também forneceram uma amostra de sangue dos motoristas de caminhão, em jejum, para análise dos fatores lipídicos. Os dados foram avaliados utilizando modelo fatorial controlado pelas covariáveis: idade, tabagismo, demanda de trabalho, controle no trabalho e apoio social. RESULTADOS:A maioria dos motoristas do turno irregular e do turno diurno trabalhava mais de oito horas por dia (67,7% e 73,1%, respectivamente). O tempo de experiência no trabalho no horário irregular foi de 15,7 anos. Trabalhadores diurno...

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Section: Discussionmentioning

confidence: 98%

Effects of irregular-shift work and physical activity on cardiovascular risk factors in truck drivers

2013

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“…The effect of shift work on body weight has been investigated in previous studies, several of which demonstrated a significant tendency to become overweight [6,27,28]. In contrast, some studies failed to show such associations [15,29].…”

Section: Discussionmentioning

confidence: 98%

“…Shift work was defined as work at times out of normal daylight hours 8:00 am to 2:00 pm or work during the weekends [15]. An additional question representing the shift work period was asked.…”

Section: Study Design and Samplementioning

confidence: 99%

Dietary, Anthropometric, Biochemical and Psychiatric Indices in Shift Work Nurses

Naghashpour¹,

Amani²,

Nematpour³

et al. 2013

FNS

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Objectives: The aim of this study was to compare nutrients intake, anthropometric, biochemical and psychiatric indices between shift working and day-time nurses. Methods: A cross-sectional comparative study was conducted in which ninety eight female nurses (55 day-time workers and 43 shift workers) from six educational hospitals of Jondi-Shapour University of medical sciences, Ahvaz, Iran were participated. A questionnaire including dietary, anthropometric, disease history and lifestyle pattern questions was completed and 3-day 24-hour recalls, Beck Depression Inventory (BDI) and Hospital Anxiety and Depression Scale (HADS) were collected. Serum hs-CRP and 25(OH)D 3 concentrations were measured by immunoturbidimetric and electrochemiluminescent immunoassay method, respectively. Anthropometric indices were measured according to World health organization standard protocol. Independent sample t and chi-square tests were used for statistical analysis. Results: There was a lower dietary intake of thiamin, riboflavin, niacin, folate, magnesium and iron in shift worker compared with day-time nurses (p < 0.05). No significant differences in serum hs-CRP concentrations, serum 25(OH)D 3 levels, vitamin D deficiency percentage, hemoglobin and hematocrite concentrations, and also anthropometric and psychiatric variables were found between two groups. Duration of exposure to sunlight was significantly higher in shift workers than in day time nurses. Engagement time in weekly physical exercise was around 11 times greater in day-time nurses compared with the shift work nurses (p = 0.001). Conclusions: This study showed that shift working is associated with some nutritional deficiencies and sedentary lifestyle among female nurses.

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“…Several of them have demonstrated a significant relation between working in shifts and body weight or obesity (26)(27)(28)(29), while some others did not (30,31). Most of these studies, however, had a crosssectional design and thereby failed to determine a clear causal relationship between shift work and body weight change.…”

mentioning

confidence: 99%

“…In recent years, several studies have investigated the association between shift work and weight gain, overweight, or obesity (26)(27)(28)(29)(30)(31). Several of them have demonstrated a significant relation between working in shifts and body weight or obesity (26)(27)(28)(29), while some others did not (30,31).…”

mentioning

confidence: 99%

The effects of shift work on body weight change − a systematic review of longitudinal studies

Drongelen¹,

Boot²,

Merkus³

et al. 2011

Scand J Work Environ Health

160

151

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Shift working and risk of lipid disorders: A cross-sectional study

Cited by 84 publications

References 14 publications

Effects of irregular-shift work and physical activity on cardiovascular risk factors in truck drivers

Effects of irregular-shift work and physical activity on cardiovascular risk factors in truck drivers

Dietary, Anthropometric, Biochemical and Psychiatric Indices in Shift Work Nurses

The effects of shift work on body weight change − a systematic review of longitudinal studies

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