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 In a population of 10,000, beta carotene was given to 6000 people. The remainder did not receive any carotene. 3 out of the first group later suffered from lung cancer while 2 out of the secornd group (non-recepients) also got lung cancer. What is your reasonable conclusion? and explain in detail?
The question reveals the following facts: Carotene intake Lung cancer present No lung cancer Total YES 3 5997 6000 NO 2 3998 4000 Disease among exposed: Out of 6000 people who were given beta carotene 3 developed lung cancer: 3/6000=1/2000 Out of 4000 people who did not receive 2 developed carcinoma: 2/4000 = 1/2000 This means that the same fraction of people developed lung cancer irrespective of whether they were or were not given beta carotene.No difference is found in incidence. Relative risk: Incidence of disease among exposed 1/2000 ------------------------------------------------ = ----------- = 1 Incidence of disease among non exposed 1/2000 Relative risk 1 denotes that there is no means of association Results thus clearly show that beta carotene and Lung cancer have no relation to each other. Ref:Park's Textbook of Preventive and Social Medicine By K. Park, 18th Edition, Pages 56, 72