Nelson Vergel
Founder, ExcelMale.com

One drawback of the study is that it did not have many men with total testosterone over 600 ng/dl, so it is difficult to assess what happens to those with higher levels.
The percentage of men with circulating total testosterone levels in the two middle quartiles (between 9.82 and 15.8 nmol/L [282 to 455 ng/dL]) who died was 23.3% to 25.1%, compared with 30.8% among men with lower T levels and 26.5% among men with higher levels.
After allowance for other risk factors, T and DHT were associated with all-cause mortality.
Higher DHT was associated with lower ischemic heart disease mortality (Q3:Q1, HR=0.58,P=0.002; Q4:Q1, HR=0.69, P=0.026).
Estradiol was not associated with either all-cause or ischemic heart disease mortality.
http://jcem.endojournals.org/content/early/2013/11/20/jc.2013-3272.abstract?rss=1