10:832:335 Lecture Notes - Lecture 8: Fecal Occult Blood, Mammography, Covariate

56 views20 pages

Document Summary

Week 8 - intervention studies and clinical epidemiology. Design a study (either cohort or case-control) to test each hypothesis. Evaluating the efficacy of prevention and therapeutic interventions. The investigators influence the exposure of the study subjects. The strongest methodological design: outcomes are compared between two or more groups of people receiving different levels of the intervention. Compare outcomes in intervention group to outcomes of control group. E. g. , group a receives new drug, group b receives placebo. Compare outcomes: within-group design, may be used where the outcome in a single group is compared before and after the assignment of an intervention. Individual characteristics that might confound an association (e. g. , gender, race, genetic susceptibility) are controlled. Susceptible to confounding from time-related factors such as the media (but that can be adjusted for in the analysis) A randomized controlled trial in a clinical setting is referred to as a clinical trial . The unit of analysis is the group or community.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions