Case Control & Cohort Study Differences
公卫论坛 | Case Control Studies
公卫百科 | Cohort Study 公卫家园 |
Advantages 公卫百科 | They are quicker and inexpensive to conduct
公卫考场 | It can measure the incidence of disease,so it can tmeasure RR 公卫家园 |
They are good for rare diseases 公卫家园 | It good for rare exposures 公卫考场 | |
The sample size is smaller than cohort study 公卫论坛 | It is prospective and permits multiple outcomes to be assessed in the same study
公卫考场 | |
They are good for new serious diseases to explore the possible causes
公卫论坛 | The temporal sequence is appropriate,so it good for causal association inference 公卫家园 | |
Disadvantages 公卫人 | They are retrospective,temporal sequence may be a problem,so it is difficult to establish the association between exposure and diseases 公卫论坛 | It requires large sample sizes and need long follow-up periods 公卫家园 |
There are some potential biases,such as selection bias,recall bias 公卫百科 | It is very expensive 公卫人 | |
They can not measure the incidence of disease,therefore can not measure RR 公卫家园 | It is inefficient for rare diseases 公卫人 | |
They are iefficient for rare exposures
公卫百科 | Some biases:loss to follow-up bias,measurement bias 公卫考场 |
附件列表
词条内容仅供参考，如果您需要解决具体问题
（尤其在法律、医学等领域），建议您咨询相关领域专业人士。
如果您认为本词条还有待完善，请 编辑
