Question: In 2025, an investigator drew a 1% (simple) random sample of all adults in a community of 105,000 persons. An initial examination revealed 50 existing

In 2025, an investigator drew a 1% (simple) random sample of all adults in a community of 105,000 persons. An initial examination revealed 50 existing cases of a chronic disease for which there was no recovery. Forty percent of the total sample had a particular exposure, which remains unchanged over time. Within the new five years, 55 cases of the disease occurred in the study population; 40 of these cases were exposed. Assume steady state conditions and that the exposure is not a prognostic factor for the disease. Estimate the proportion of all new cases in the total adult population which are due to exposure . (hint : population attributable risk percent ) PAF= (3 decimals)

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