Although 95 percent of the complications due to drug use are not captured in this data, the link to cardiovascular disease was clear: The death rate due to cardiovascular disease from marijuana use was as high as 25.6 percent.
Links
[1] http://www.livescience.com/45074-marijuana-cardiac-health-risks.html
[2] http://www.rethinkpot.org/tags/heart
[3] http://www.rethinkpot.org/tags/oped