A 58-year-old male smoker presents with chronic productive cough and dyspnea. Vital signs show BP 138/82, HR 92, RR 18, temperature 37.2°C, SpO2 92% on room air. Chest X-ray reveals hyperinflation without acute infiltrates. FEV1/FVC ratio is 0.68. A longitudinal study reports annual chronic bronchitis incidence of 90 per 10,000 among smokers versus 30 per 10,000 among nonsmokers. Which parameter best represents the disease burden attributable specifically to smoking exposure?
- A)30 per 10,000
- B)60 per 10,000GABARITO
- C)120 per 10,000
- D)90 per 10,000
- E)20 per 10,000
Explicação
Attributable risk is the incidence in the exposed group minus the incidence in the unexposed group. Here that is 90 minus 30, or 60 per 10,000. It represents the excess disease burden in smokers that is attributable to the exposure. Ver explicação completa e trilha adaptativa →