| Group | Number of Lung Cancer Cases | Population at Risk | | --- | --- | --- | | Smokers | 50 | 5,000 | | Non-smokers | 10 | 5,000 |
where a = 200, b = 100, c = 100, and d = 300 5.1.1 epidemiology study analysis practice problems answers
level, meaning the observed association could be due to chance. Identify Study Weakness/Bias : Potential recall bias | Group | Number of Lung Cancer Cases
| Group | Number of Lung Cancer Cases | Population at Risk | | --- | --- | --- | | Smokers | 50 | 5,000 | | Non-smokers | 10 | 5,000 |
where a = 200, b = 100, c = 100, and d = 300
level, meaning the observed association could be due to chance. Identify Study Weakness/Bias : Potential recall bias
