materials and methods in this descriptive and analytical study, we used a static and direct method. cluster sampling method was used to select the subjects. participants were 1600 randomly-selected iranian male (n = 568) and female (n = 1031) workers of five hospitals in bandar abbas. thirty seven static dimensions were measured in the individuals aged 20 - 60. for anthropometric measurement, t...

healthy hire effect (hhe) is considered as an epidemiological phenomenon, complicating the assessment of a true cause - effect relationship between occupational exposure and health status of workers. the current study was aimed at identification and elimination of hhe in the risk assessment of arterial hypertension (ah) in coal miners. overall, 1553 miners, working in west siberia, were enrolle...

This review article aims to anatomize sources of the healthy worker effect (HWE) and to summarize advantages and limitations of several approaches frequently proposed to eliminate the HWE. Although the HWE is frequently addressed in the context of selection bias, our review suggests that the selection of occupational cohorts with advantageous health status would preferably be addressed as a sou...

In a recent issue of the Journal, Kirkeleit et al. (Am J Epidemiol. 2013;177(11):1218-1224) provided empirical evidence for the potential of the healthy worker effect in a large cohort of Norwegian workers across a range of occupations. In this commentary, we provide some historical context, define the healthy worker effect by using causal diagrams, and use simulated data to illustrate how stru...

background: the interaction between serum neuron-specific enolase (nse), biogenic amino-acids and neurobehavioral function with blood lead levels in workers exposed to lead form lead-acid battery manufacturing process was not studied. objective: to evaluate serum nse and biogenic amino-acids (dopamine and serotonin) levels, and neurobehavioral performance among workers exposed to lead from lead...

The linear no-threshold (LNT) dose-effect relationship has been consistently used by most radiation epidemiologists to estimate cancer mortality risk. The large scattering of data by International Agency for Research on Cancer, IARC (Vrijheid et al. 2007; Therry-Chef et al. 2007; Cardis et al. 2007), interpreted in accordance with LNT, has been previously demonstrated (Fornalski and Dobrzyński ...

BACKGROUND Seafood processing workers have an increased risk of developing occupational asthma. This has not been studied among Norwegian crab processing workers, nor has the respiratory health of exposed workers been compared to a control group. OBJECTIVES Assessing the impact of working in the crab processing industry on workers' respiratory health. DESIGN A cross-sectional study of the r...

background and aims: the aim of present study was to investigate the molecular characteristic of staphylococcus aureus to detect mec a gene and to type sccmec in strain isolated from healthy worker at larestan hospital. material and methods: this study was carried out from the 250 nasal swab healthy worker  at larestan hospital. multiplex polymerase chain reaction for meca gene was performed in...