The news however I would love to know if their are any stats on this so I could prove it either way. Really it was just a thought without any solid proof that I would like find out.
See if this article is helpful: God, Faith and Death The Impact of Biological and Religious Correlates on Mortality from the journal Human Biology, 2003. It compared Roman Catholic, Lutheran and Reformed Calvinist information over several centuries in adjoining parishes in Germany
findarticles.com/p/articles/mi_qa3659/is_200312/ai_n9310281
(You will have to scroll down to see the actual article, because of the annoying ads, but this was the best link to the article I could find)
Concluding remarks (found on p. 9 of the article):
The current study demonstrates distinct denominational mortality differentials between Roman Catholic, Lutheran, and Reformed Calvinist individuals that persisted well into the 20th century. This observation is in accord with previous studies (Zschunke 1984; Kedelski 1990; Heller-Karneth 1996; Sponholz et al. 1996; Horning 1998; McQuillan 1999). To the uncritical eye, these differentials could indicate a society with a horizontal stratigraphy along religious and cultural lines. But instead the data at hand point towards denominational reproductive strategies as a causative factor. Early life conditions affect health and adult morbidity and mortality. In this context, timing of first pregnancy, subsequent spacing and stopping of births, and targeted family size not only influenced offspring well-being but also maternal health. The greater survival prospects in Protestants are thought to be the result of a greater reliance on family planning devices as well as better obstetric care. In contrast, Catholic childbearing was geared towards maximizing reproductive output. This, however, proved to be an ineffective strategy, since relative reproductive success was markedly lower than in any other denomination. Reformed Calvinist family building, which was also targeted at high sibship size, was able successfully to combat child mortality due to a greater reliability on midwifery, hygiene, and greater maternal education. Next to a hereditary component, the observed family resemblance in mortality may be a function of shared environmental effects associated with common rearing, socioeconomic status, or nutrition. Mortality differentials and religious affiliation may thus independently share a nontrivial familial component.
Studies looking at modern rates are harder to come by. Most of the ones I found do not differentiate by specific religion or by sect within a specific religion, but rather simply religious affiliation at all vs. none.
a study between Eastern Orthodox and Lutheran middle aged men in Finland from the International Journal of Epidemiology
ije.oxfordjournals.org/cgi/co…ract/25/6/1244