SOLVED5255

The association between job related exposure to welding fumes and chronic pulmonary disease (COPD) was explored in a cross-sectional study. The following data were reported for 399 COPD patients 37 currently work as welders; the remainder had no occupational exposure. Among 800 controls 48 were employed as welders 1. Construct the appropriate 2 X 2 table 2. Calculate the prevalence of persons exposed. 3. Calculate the prevalence of disease in persons not exposed 4. Calculate the prevalence rate. 5. Interpret the prevalence rate
SCIENCE
HEALTH SCIENCE
NURSING
NU 955

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