Which of the following are listed as example data sources for population health?

• A. Census
• B. All of the above
• C. BRFSS
• D. ACS

Answer: (B)

Using multiple data sources provides a fuller view of population health because each dataset captures different pieces of the picture. The census gives a precise count of people and basic demographics every ten years, helping map where people live and who makes up the population. The American Community Survey adds more detailed, up-to-date socio-economic information on an annual basis, letting us track trends in income, education, and housing that influence health outcomes. The Behavioral Risk Factor Surveillance System collects health-related behaviors, conditions, and preventive service use through surveys, offering insight into risk factors and disease prevalence at the population level. When you combine these sources, you get a richer, more actionable picture of population health than from any single dataset. All of these are therefore examples of data sources used in population health.