@article{ref1,
title="Effect of recall period on the reporting of occupational injuries among older workers in the Health and Retirement Study",
journal="American journal of industrial medicine",
year="1995",
author="Zwerling, Craig S. and Sprince, N. L. and Wallace, R. B. and Davis, C. S. and Whitten, P. S. and Heeringa, S. G.",
volume="28",
number="5",
pages="583-590",
abstract="Studies of injury morbidity often rely on self-reported survey data. In designing these surveys, researchers must chose between a shorter recall period to minimize recall bias and a longer period to maximize the precision of rate estimates. Using data from the Health and Retirement Study, which employed a recall period of 1 year, we examined the effect of the recall period on rates of occupational injuries among older workers as well as upon rate ratios of these injuries for nine risk factors. We fit a stochastic model to the occupational injury rates as a function of time before the interview and used this model to estimate what the injury rates would have been had we used a 4-week recall period. The adjusted occupational injury rate of 5.9 injuries per 100 workers per year was 36% higher than the rate based on a 1-year recall period. Adjustment for recall period had much less effect on rate ratios, which typically varied by < 10%. Our work suggests that self-reported surveys with longer recall periods may be used to estimate occupational injury rates and also may be useful in studying the associations between occupational injuries and a variety of risk factors.",
language="",
issn="0271-3586",
doi="",
url="http://dx.doi.org/"
}