Another thought occured to me. I seem to recall that persons having pets live longer than those that do not. It must have been a dyslexic God owner that conducted that study.
I'm guessing the real mortality rate is the same as for the general population. One fatality per customer...
I'm curious about what that 28 percent lower rate means in real life. Perhaps it means non-churchgoers are already hospitalized and can't attend, or perhaps it means churchgoers engage in fewer risky or unhealthful activities.
Sort of like the reason minivans are among the safest vehicles.