Recall the casual criteria presented by Sir Austin Bradford Hill in 1965: Casual Criteria Discuss the...
1. What are the nine criteria of causation that were proposed by Sir Austin Bradford Hill (1965)? Define them and give an example for each. 2.What is the difference between prospective and retrospective study design? Cite at least one example of each.
C. According to Bradford-Hill, there are 9 for judging whether an association is causal. They are: strength of association, consistency, temporality, biological gradient, coherence, experiment, analogy, plausibility, and specificity. Summarized below are evidence used by the Surgeon General's Advisory Committee on Smoking and Health to support the inference that cigarette smoking causes lung cancer. Indicate the criteria (or criterion) which is/are relevant for each statement. (1 point each) 1. A review of literature identified 29 case-control studies and 7 cohort...
What is the association between 1) smoking and lung cancer and 2) sleep and weight gain/loss.
Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain The first was a case-control study begun in 1947 comparing the smoking habits of lung cancer patients with the smoking habits of other patients. The...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...