Example. Front page news story, Daily Oklahoman, Oklahoma City, Feb 4, 2000

• State of the State’s Health report, from Oklahoma Board of Health.

• Text: “Currently, the death rate in Oklahoma is 11.3 percent higher than the national average.”

• Graph: Death rate per 100,000 (age adjusted), in 1998.

  • Oklahoma 529
  • United States 475

• The “11.3% higher” is an expression of a treatment (or exposure) effect. (Treatment would be: change OK conditions for next generation.)

  • 529 is 11.3% higher than 475, where 100% = 475.
  • This is a “Relative Risk Difference”.

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