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With around 15 to 20% of workforce engaging in nightshift work in modern society for obvious economic and social reasons, the consequences of night work on cardiovascular risks are substantial. Compared to day workers, it was reported higher risks of cardiovascular diseases (estimated at 40%) and of metabolic syndrome (1.5 times) in shift workers. The occurrence of metabolic syndrome increases the risk to develop high blood pressure, diabetes and cardiovascular events. Because some characteristics of night work are potentially modifiable, some preventive strategies could be applied to reduce its adverse effects. For shift workers, some recent guidelines (High Health Authority, 2012 & 2016) and fruitful literature propose to develop regular assessments of cardiovascular risk factors and occupational activities, and stress the need to expand preventive strategies. Moreover, some recent French laws provide an opportunity to implement preventive interventions and specific monitoring through the occupational physicians network. However, whether the concept is defined, the exact content, method and the potential benefits are unknown. The investigator assume that individual advice related to collective countermeasures referenced on guidelines (applied on worksite within plant) could lead a better improvement on incidence of metabolic syndrome compared to those that benefit only individual advice.
Main objective:
To measure the benefit from implementation of individual and collective prevention (dispensed in worksites within plants) on metabolic syndrome compared to strategy relying only on individual prevention among night workers, over 2 years' follow-up. The secondary objectives of the study are to evaluate in both groups:
Full description
Among the various causes of mortality, deaths attributable to cardiovascular diseases (CVD) are the most widespread worldwide. Despite major progress being made, the risk remains. Occupational factors such as shift work have emerged as potential CV risk factors. With around 15 to 20% of workforce engaging in nightshift work in modern society for obvious economic and social reasons, the consequences of which on occupational and social inequalities are substantial. Compared to day workers, it was reported higher risks of cardiovascular diseases (estimated at 40%) and of metabolic syndrome (1.5 times) in shift workers. The occurrence of metabolic syndrome increases the risk to develop high blood pressure, diabetes and cardiovascular events. Because some characteristics of night work are potentially modifiable, some preventive strategies could be applied to reduce its adverse effects. For shift workers, some recent guidelines (High Health Authority, 2012) and fruitful literature propose to develop regular assessments of cardiovascular risk factors and occupational activities, and stress the need to expand preventive strategies. Moreover, some recent French laws provide an opportunity to implement preventive interventions and specific monitoring through the occupational physicians network. However, whether the concept is defined, the exact content, method and the potential benefits are unknown. The investigator assume that individual advice related to collective countermeasures referenced on guidelines (applied on worksite within plant) could lead a better improvement on incidence of metabolic syndrome compared to those that benefit only individual advice.
Descriptive analysis according to the clusters and also to the both groups will be provided. Multivariate analysis, according to specific design of study (clusters), will be performed by multilevel analysis or marginal analysis. Given the specificity of self-employed people belonging to 'Regime social des independents, a target population will be added. The medical monitoring and individual prevention will be carried out by occupational physicians from occupational disease centres.
• Expected results From implementation of preventive strategies, investigator will expect: 1) The health improvement among night workers by decreased incidence of metabolic syndrome; by improved quality of life; 2) A improvement of social and professional development of night workers by a better tolerance of night work, and job retention; 3) Behavioral improvement by a positive impact of individual and collective behavioral changes on cardiovascular risks; 4) Practical actions by identifying factors which influence the implementation of preventive actions; 5) By this project, investigator would like also to determine some relevant, practical and effective actions which could be generalized at all night workers in preventive health public Policy.
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3,056 participants in 2 patient groups
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Central trial contact
Yolande ESQUIROL, MDPhD
Data sourced from clinicaltrials.gov
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