Can someone explain to me, is this study saying that drinking 1-3 cups of coffee is bad while <1 cup or >3 cups are better? The language is little confusing.

Can someone explain to me, is this study saying that drinking 1-3 cups of coffee is bad while <1 cup or >3 cups are better? The language is little confusing. Edit: I think I got it, the numbers 1.09 for 1-3cups, 1.07 for 3-5 cups, 1.08 for >5 cups are relative to 1.0 for no or little coffee.