Percentage distribution of U.S. IVF cycles per age groups, years 1997-2010. The figure demonstrates in the young patient groups (<35 years and 35-37 years) flat IVF cycle years for the period between 1997-2010, and even mild declines, starting in 2006/2006. In contrast, the oldest patient groups, before 2007 not even registered in national outcome reporting in the U.S., gathered steam. Starting in 2010, national outcome reporting for the first time, indeed, included women above age 44 years. All of these development also correlate well to reported U.S. data, suggesting that women above age 40 now represent the, proportionally, most rapidly age group of women having children [1, 2].