Table 2. Proportional mortality rates (%) due to cardiovascular disease, cancer, accidents and all other causes.

	Cardiovascular Disease	Cancer	Accident	Other
Reference Groups
US Population Ages 55–64, (n = 338, 127)	27%	34%	5%	35%
Non-Flight Astronauts, (n = 35)	9%*	29%	53%*	9%*
Astronaut Groups
All Flight Astronauts, (n = 42)	17%	31%	43%*	10%*
Low Earth Orbit Astronauts, (n = 35)	11%*	31%	49%*	9%*
Apollo Lunar Astronauts, (n = 7)	43%†‡	29%	14%^	14%

Values are mean ± SE. n = the number of individual deaths per group. *Significantly different from the US population age 55–64 group, P ≤ 0.05; ^†significantly different from non-flight astronaut group, P ≤ 0.05; ^significantly different from the non-flight astronaut group, P ≤ 0.1; ^‡significantly different from the low Earth orbit astronaut group, P ≤ 0.1.