Obesity may slow fall in heart deaths

The use of "odds" and "chance" in the last paragraph of this article should raise alarm bells. Does the writer know the difference? It is a good exercise to try and translate the odds increase of 70% into a chance statement so it can be compared with the chance statements given.

which makes the calculation of the new probability in terms of the old rather messy.
The increase is dependent on the original value with x = |F(1.7y,1+.7y) .

One must suspect that "odds" has been used as a synonym for "chance" rather than correctly in its own right.

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