Suppose that the population of NK is 20,000,000. Now suppose that, conservatively, 200,000 die of starvation, and starvation-related causes, each year. That is already 10 per 1000 and we are not counting OTHER forms of mortality. If you like a more realistic 500,000 per year, you have 25 per 1000 from starvation alone. The true scope is unobtainable because of the repressive nature of the regime. Even Doctors Without Borders has left North Korea.

Do the policies of the North Korean government undermine the political and/or economic rights of its people more so than five years ago?
The condition of the North Korean people, both physically and politically, is worse than at any time in the history of their government. U.N. nutritional studies and other research have shown that at least one million North Koreans have starved to death since 1994, while many others face starvation. North Korea's medical system has collapsed with its economy, transforming common diseases into death sentences for many. North Korean hospitals largely function as hospices.

Try this for additional information:

North Korea: Suffering in silence
from that right-wing, ultra-conservative bunch at Amnesty International
North Korea: Human Rights Concerns

Or this:
North Koreans Face Another Summer of Starvation, Hopelessness

Or these:
North Korean starvation detailed

NORTH KOREA - Starvation Stalks a Wasted Land

Millions of North Koreans face starvation

To find more, just prime your favorite search engine with "starvation North Korea" and read as much as you can stand. Then tell me about those bullshit mortality rates.