Relative and Absolute Risks
Population Attributable Risk and PAR%
Example of PAR% in Environmental Health
Absolute Risk
Relative Risk
Odds and Odds Ratio
Hazard Ratio
Epidemiological Study Designs
Ecological Study
Example of ecological study design in environmental health
Case Series
Example of case series in environmental health: surveillance
Cross-sectional survey
Example of cross-sectional survey in an occupational setting
Case Control Study
Example of case control study in environmental Health: arsenic exposure and cancer
Prospective Cohort study
Example of a prospective cohort study in environmental health context
Retrospective Cohort study
Example of a retrospective cohort study in the context of occupational health
Systematic Review and Meta Analysis
Example of systematic reviews and meta analyses in environmental and occupational health
Advantages, disadvantages, and indications for different study designs
Summary
References