Fig. 1From: Effect of patient’s age on the profitability of inpatient cardiac catheterization: a contribution margin analysis of frequently performed procedures over a 5-year periodAge distribution of invasive cases treated in the period 2007–2011. Shape analysis shows a clear asymmetry with a right shift of the age peak. The highest case numbers per age group can be found in the groups with patients in their 70s and 80sBack to article page