Welcome to Vizual Statistix! My name is Seth Kadish. I live in Portland, OR, where I work as a scientist. To learn more about me, visit my LinkedIn profile, and send an invitation to connect.
This blog is a product of my passion for data visualization. The data shown here are sourced from other websites, but all statistical operations on these data and the resulting graphics are original.
If you would like to use one of my graphics on your website or in a publication, please email me. I also take requests and am available for freelance work. Contact me if you have a suggestion for a graphic or need support on a project.
This graphic illustrates a time series of how old women are when they give birth. The trend shown - that women are having babies later in life - is well established, but this visualization really emphasizes how the changes have occurred. Using data spanning 1975-2010, I plotted 5 year increments, then added vectors to shown the change in birth rate from 1975 to 2010. Clearly, fewer teens and women in their early 20s are giving birth (down arrows). Instead, they are choosing to wait until their 30s (up arrows). The middle age bin (25-29 range) shows virtually no difference between 1975 and 2010; the subtraction yields +0.1 births per 1,000 women in that age range.