Yes. That's the point. If you just look at it after the heroin then it's not likely a good number. The better statistic here would be to ask, "Of all opioid users, what percentage went on to heroin?"
It's that whole, "All cats are mammals, but not all mammals are cats.", idiom.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.