The example in the previous post should have been:
In addition, the outcome variable is per cent increase which does not describe increase from what. A country with a 2% incidence of diabetes that has a 1% increase would be at the same point as a country that initially had 10% diabetes and the same 1% increase although there would be many more new cases.
I have added competing interests
Competing interests declared:
I have had grant support from the Veronica and Robert C. Atkins Foundation. I have written popular articles for several publications including Diabetes Health, Muscular Development and Fleishman-Hillard whose client is the American Corn Refiners Association.