Scandinavian journal of work, environment & health
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Scand J Work Environ Health · May 2016
LetterMethodological and conceptual issues regarding occupational psychosocial coronary heart disease epidemiology.
Overview Psychosocial occupational epidemiology has mainly focused on the demand-control and, to a much lesser extent, the effort-reward-imbalance (ERI) models. These models and the strong focus on them raise some conceptual and methodological issues we will address in the following letter. The conceptual issues include the empirical confirmation of the assumptions of these models, the extent to which the focus on the demand-control and ERI models is warranted, and whether the sub-dimensions of the scales in these models have common health effects. ⋯ Hence, whether a certain worker experiences job strain or not depends on which other workers are part of the sample (18). This poses a problem when the distributions of demands and control differ between populations. Comparisons between Denmark and Spain and across Europe suggest that such differences exist (19, 20), rendering it at the least a challenge to combine populations in meta-analyses. (ABSTRACT TRUNCATED)
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Scand J Work Environ Health · May 2016
Associations between number of consecutive night shifts and impairment of neurobehavioral performance during a subsequent simulated night shift.
This study aimed to investigate sleep and circadian phase in the relationships between neurobehavioral performance and the number of consecutive shifts worked. ⋯ A greater number of consecutive night shifts has a negative impact on neurobehavioral performance, likely due to cognitive slowing.