In their recently published study, Araujo et al1 come to the conclusion that in men, endogenous sex steroid levels appear to have relatively weak albeit significant associations with mortality. Nevertheless, even this weak connection should be regarded with caution because several confounding factors, which may further limit the significance of the finding, were not included in their analysis.
Paparrigopoulos T, Tzavellas E, Karaiskos D, Liappas I. The Relationship Between Testosterone and Mortality in Men: A Debatable Issue. Arch Intern Med. 2008;168(3):329–330. doi:10.1001/archinternmed.2007.95
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