Mormonism definitely causes suicides. My first suicide was at age 17. This is why it is important for me to stay away from this religion at all costs and it is important for others as well.
This is the kind of study that TBM's would say "has little direct evidence".
Of course, if it was a social subject that was favorable to mormons, they would use the exact same data points and conclude that it's a "bullseye for the church."