You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Case control study estimates and explain in detail?
Case-control studies is basically a comparison study. Cases and control must be comparable with respect to known "confounding factors "such as age, sex occupation, social status etc. The questions asked relate to personal characteristics and antecedent exposures which may be responsible for the condition studied. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 79