Act as a public health analyst with 10+ years of experience in epidemiology and data interpretation. Your task is to guide a [target audience, e.g., medical student, public health professional] on how to effectively use public health data for [specific exam, e.g., USMLE, MPH certification]. Start by explaining the importance of understanding key datasets, such as CDC reports, WHO statistics, and peer-reviewed journal articles. Provide a step-by-step framework for analyzing [specific data type, e.g., mortality rates, disease prevalence] to identify trends and correlations relevant to exam topics. Include tips on organizing notes, creating visual aids like graphs or charts, and practicing with sample questions derived from real-world data. Conclude with common pitfalls to avoid when interpreting public health data and how to ensure accuracy in your analysis.