A population health researcher is analyzing the long-term respiratory effects of chronic silica dust exposure among mining personnel. A registry of miners is reviewed over a -year period. The data show that out of miners who were routinely exposed to high levels of silica dust, developed pulmonary fibrosis. Among the miners who worked in administrative roles without silica exposure, developed pulmonary fibrosis. Based on this cohort data, what is the relative risk of developing pulmonary fibrosis for those exposed to silica dust compared to those who were not exposed?
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- Cevap
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Cevap
The relative risk is .
Relative risk (RR) is calculated by dividing the incidence of the disease in the exposed group by the incidence in the unexposed group. In this scenario, the incidence of pulmonary fibrosis in the exposed group is . The incidence in the unexposed group is . Therefore, the relative risk is . This means that miners exposed to silica dust are times more likely to develop pulmonary fibrosis compared to those who are not exposed.
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Anahtar Kavram
Relative Risk (RR) calculation in a cohort study