Figure 3.

The absolute risk of developing a new chronic disease stacked for the categories no. 1 or 2, and 3 or more diseases. When no bar is presented, the risk for developing a new chronic disease is 0%. Absence of a category means no additional risk with respect to de previous category. For example: a 70-year old female with no additional chronic disease at IA onset has 4% risk to develop COPD. A 70-year old female with one or two chronic diseases at IA onset has 5% risk to develop COPD. A 70-year old female with three or more chronic diseases at IA onset has 6% risk to develop COPD.