As for cardiovascular emergencies, the yearly number of cases reported by age group for USAF aviators over 5 years was as follows: 0.0054% (30–34 years), 0.018% (35–39 years), 0.038% (40–44 years), 0.14% (45–49 years) and 0.13% (50–54 years).[15] In total, 21% were cases of sudden death and 61% were diagnosed and treated as myocardial infarction.