Qcmr was your last religion the LDS Church? I am going to take a leap and tell you how the LDS Church would go around and pick up members of the poor and homeless in Los Angeles and provide a sermon and feed them Spaghetti, bread and salad and desert. I watched their vans in Alhambra pick up fifty plus people with mental illness.
The Jehovah Witness group attracts the mentally ill and it fail's them badly, once the group has figured out they are not able to perform and meet the Monthly expectations and donate much money from their disability-checks, the love turns off quick. I saw them laughed at by the elders and elderettes, some would be sent out in field circus on their own so the happy-groups could work together.
There is no way to prove a correlation between the religion causing mental illness, I think as others have discovered, the mass majority are found at home because the normal people of society are working (Not At Home) while the mentally ill are available to talk.
The Jehovah Witness religion does not teach a person how to have a close relationship with Jesus Christ and very few of the Witnesses pray at least once a day, the vast majority don't read the Bible daily and can't keep up with their reading assignments. Ray Franz said the same issues plagued the Governing Body, they were unable to perform the loads they binded upon their fellow men! How Bizzare!