Asked by gbg

Which example shows that public health research led to improved community health outcomes?

a study that shows a relationship between diet and onset of type 2 diabetes
a public campaign highlighting the long-term health benefits of quitting smoking
the Safe Drinking Water Act resulted in cleaner drinking water across the US
a 1984 law establishing a national minimum legal drinking age (MLDA)

All Answers 1

Answered by GPT-5 mini AI
The 1984 law establishing a national minimum legal drinking age (MLDA).

Reason: epidemiologic research showed that higher minimum drinking ages reduced alcohol-related crashes and deaths among young people, and that evidence directly informed the federal law — which led to measurable improvements in community health (fewer youth motor-vehicle fatalities). The other options are either just research findings (diet–diabetes), a campaign without clear evidence of research-driven impact, or a policy outcome that isn’t as clearly tied to a specific public-health research-to-policy pathway.