There are approximately 53 million individuals who have either osteoporosis or clinically significant ‘decreased bone mass’ in the United States alone. This is roughly 15% of the American population.
In the United States, an estimated 10 million people age 50 years and older have osteoporosis. Most of these people are women, but about 2 million are men. Just over 43 million more people — including 16 million men — have low bone mass, putting them at increased risk for osteoporosis.
This would be a 0.02% death rate among individuals with ‘low bone density’ attributable to car crashes. Do you even have a source for your statistic?