I told Marvin I would not argue with him anymore, and I won't. I feel his numbers are overstated, but repeated attempts to get clarification or a response to critiques have failed. He either can't or won't accept that his numbers could be flawed, and their is really no where to go with that. But for the rest of you, here is my take on it.
I, as well as most others who have commented here, feel that one small study in one very small country, cannot simply be extrapolated to apply to Jehovah's Witnesses everywhere. The study itself has been questioned by others, who feel that the death statistics reported cannot be true. Of curse, every study will have someone who disagrees, but I do agree with Isbister myself. The study was too small, compared apples to oranges, in race, age, and other health conditions. Quite often, additional studies in a particular area will have different results, and it is only when the results have been replicated more than once that you can have complete confidence it it. We know that smoking causes cancer and other health problems, and, due to multiple studies you can predict the percentage of people who will die of smoking related deaths. With anemia deaths, not so much.
I questions his numbers on total anemia deaths, as the US total reported deaths are a fraction of the total reported deaths due to anemia in the study. It is 1.6 deaths per thousand. He responded that it is calculated differently in New Zealand. That may be, but the US reports anemia deaths per World Health Organization standards, so I do not know why New Zealand reports it differently. If you assume that the same percentage of people die by anemia worldwide as in the US, total deaths in 2010, for Jehovah's Witnesses world wide would be expected to be 116 if blood were not an lssue. Per the NZ study, JWs have a 10X greater risk of dying. If you accept that, You would expect 1,155 deaths. Per Marvin' s calculation of .000265, there would be 1,914 deaths. Of course, I don't accept that. As Isbister pointed out, the trend in the medical community is away from automatic transfusions, often they are not needed, even in cases of very low hemoglobin. And of course, Witnesses can now take fractions, which would lower deaths even more.
I suspect the truth is somewhere between 116 and 1,914 for 2010. Without the NZ study, it's a guess, and I just have a hard time believing the study. It very much depends on how the deaths were reported, and how they were picked for the study. There are just too many unknowns, and too many possible differences in how different countries count cause of death. You could have died of Anemia, for example, but the root cause was cancer that would have killed you anyway. How was that reported in NZ, or in the study? I was wondering why Marvin was so focused on Anemia deaths, when it seemed to me more people would have died of refusing transfusions in case of accidents until I found a study that showed the risk of death in severe trauma was not significantly greater among Jehovah's Witness.
Of course, as someone pointed out, one death is too many, and there is no question that Jehovah's Witnesses have died due to the Watchtower blood doctrine. The Watchtower even bragged about it in an Awake cover showing children who died due to the bood doctrine. Of course, it is more common now for the courts to intervene and force the issue in these cases, so it is unknown how many children are during each year now. At the end of the day, I cannot believe Marvin's numbers and I think he is wrong to put them out like he has, but it's his blog, obviously he could due what he likes.