If you read the article, the difference is mostly due to car accidents. In the city, things are more congested, you just don't get going that fast, and most accidents are fender benders. In my rural area, folks drive very fast on 2 lane roads, and if you lose it, you are possibly hitting a big tree or a oncoming truck. In the last 20 years we have had 3 accidents that have killed 4 or more kids at once in this area, all of them driving fast and hitting trees. Growing up in the city, I never heard of anybody getting killed or injured on farm equipment. We have had a couple of folks killed in tractor or equipment accidents. I still am not moving back to the city, but I don't doubt the stats. Be careful out there!
Don't forget, in some rural areas, you might be 20 or more miles from a EMS vehicle, or any other help. When my grandfather had a heart attack in the city, EMS was there within 5 minutes. Out here, 10 minutes would be considered very good, and 20 minutes acceptable, depending on location, time of day, and probably a lot of factors I don't even know. We had a elderly neighbor who moved back into the burbs, due to ill health. The person who bought that house is now considering the same move, for the same reasons.