Individual-based and group-based occupational exposure assessment: some equations to evaluate different strategies

摘要

Basically, two strategies can be considered for the analysis of hazardous pollutants in the work environment: group-based and individual-based strategies. This paper provide existing and recently derived equations for both strategies describing the influence of several factors on attenu- ation and on the standard error of an estimated linear regression coefficient relating a continuous exposure variable and a continuous health outcome via a simple linear regression model. We applied these equations using exposure variability information form industry-wide surveys over the past decade in order to gain more insight into the effects of various sources of exposure variability on choices among different analysis strategies.