There is an Italian study done....for all deaths (around a thousand they reviewed out of Italy)....for folks under age 65, the vast number (around 80-percent) were male. Over the age of 65....it was lessened to around 60-percent male. Almost all of the group from the age under age 65....had contributing conditions (diabetes, blood pressure, lung issues, etc). Only .7-percent had no contributing condition.
Darker skinned people have a harder time turning sunshine into Vit D. Lower Vit D is seen in high blood pressure. Perhaps this is linked to the higher number of Blacks getting CV and having more problems with it than lighter skinned persons.