Certified Occupational Health Nurse Exam 2025 – 400 Free Practice Questions to Pass the Exam

Ecologic studies are designed to investigate the relationships between environmental exposures and health outcomes across different populations or communities. The focus is on correlating levels of exposure to specific risk factors with the prevalence or incidence of diseases within those groups. This type of study examines aggregate data rather than individual-level data, making it possible to identify patterns or associations that may warrant further exploration.

The strength of ecologic studies lies in their ability to highlight potential links between environmental factors (such as pollutants, lifestyle choices, or occupational hazards) and health outcomes (such as incidence rates of certain diseases like cancer or respiratory conditions) across various populations. Such studies can reveal important trends that may inform public health interventions.

While demographic factors, health behaviors, and socioeconomic status are certainly important elements to consider in public health research, they do not directly represent the primary focus of ecologic studies, which is the relationship between specific exposures and health outcomes. Therefore, the best answer is the one relating directly to the comparison of exposures and diseases across populations.