A epidemiological research method is a study of the frequency and distribution of a certain disorder within a certain population. For example a epidemiological research method could include how the AIDS virus affects people differently concerning gender and race. This method of research is also very effective in providing occurrence variables in concurrence with social and cultural factors concerning each group as a method of explanation to why certain people are more prone to certain disease or disorders. This research method primarily focuses on the prevalence of a disease or disorder, the incidence concerning how many new cases occurred within a year and the risk factors that are associated with the disease or disorder. This knowledge of course provides to be very important information to public and to health care facilities to properly orchestrate their facilities to best treat people most effectively. It also provides much more detailed information concerning individuals and what risk factors they need to be aware of and what factors to pay more attention to as being prone to certain diseases over others. The results of a epidemiological research study can be used to more thorough research methods.
cohort
Lol wut
ecology, epidemiological studies
epidemiological studies.
ecology, epidemiological studies
Peizhong Peter Wang has written: 'Disability, epidemiological studies, and contextual factors'
Epidemiological Study.
Elizabeth Jennifer Hanna has written: 'Epidemiological and genetic studies in congenital heart disease'
Epidemiological Study.
Cohort, case control, and cross sectional
epidemiological studies.
A carcinogen is an agent that can produce cancer (a malignant growth or tumor that spreads throughout the body, destroying tissue). The EPA (Environmental Protection Agency) classifies chemical and physical substances according to their toxicity to humans.EPA classification system for carcinogensGroup A. Humans CarcinogensThis classification indicates that there is sufficient evidence from epidemiological studies to support a cause and effect relationship between the substance and cancer.Group B. Probable Human CarcinogenB: Substances are classified as B carcinogens on the basis of sufficient evidence from animal studies, and limited evidence from epidemiological studies.B: Substances are classified as B carcinogens on the basis of sufficient evidence from animal studies, with inadequate or nonexistent epidemiological data.Group C. Possible Human CarcinogenFor this classification, there is limited evidence of carcinogenicity from animal studies and no epidemiological data.Group D. Not Classifiable As To Human CarcinogenicityThe data from human epidemiological and animal studies are inadequate or completely lacking, so no assessment as to the substance's cancer-causing hazard is possible.Group E. Evidence Of Noncarcinogenicity For HumansSubstances in this category have tested negative in at least two adequate (as defined by the EPA) animal cancer tests in different species and in adequate epidemiological and animal studies. Classification in group E is based on available evidence; substances Amy prove to be carcinogenic under certain conditions.