Does impact of expert versus measurement-based occupational noise exposure estimate on exposure-response relationships?
The measurement-based approach was more precise, as expected, but experts were reasonably able to rank occupational noise exposures. The experts' assessment was, however, unable to account for HPD use, which made a substantial contribution to exposure misclassification in this study. The experts' noise estimates would be more useful for risk assessment if they were calibrated against units of noise exposure.
Given its importance as a source of physical activity for some children, researchers should consider assessment of public transit-related activity in physical activity measurement instruments. Efforts to encourage active travel should consider how to incorporate transit-related activity, both from a measurement perspective and as an intervention strategy.