HARI SREENIVASAN:

The rise in rates were particularly alarming among some age groups. While the numbers are still smaller among children, the suicide rate was up sharply among 10-to-14-year-old girls, tripling in the past 15 years.

It also rose steeply among middle-aged Americans, 63 percent higher for middle-aged women, 43 percent higher for middle-aged men.

For some perspective on these trends and some of the potential reasons behind it, I'm joined by Katherine Hempstead, who studies this for the Robert Wood Johnson Foundation.

For the record, the foundation is a funder of the NewsHour.

So, which of these sets of numbers, and we just went over a couple of them, but stood out to you when you saw this?