Letters

Author's reply

BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6975.330b (Published 04 February 1995) Cite this as: BMJ 1995;310:330
  1. E J M Feskens
  1. Senior researcher National Institute of Public Health and Environmental Protection, Department of Chronic Diseases and Environmental Epidemiology, PO Box 1, NL-3720 BA Bilthoven, Netherlands

    EDITOR,—Firstly, we agree with Frisoni and colleagues that to calculate the attributable fraction the use of prospective data (incidence of disease) is much more informative than the use of cross sectional data (prevalence of disease). The duration of the disease, due to earlier onset as well as selective survival, is likely to affect …

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