Rich Ulrich wrote: > Quite often, as with the HRT, there is the additional problem > of non-randomization. For that, I also consider the effect size, > too, and say, "Can I imagine particular biases that could > cause this result?"
With HRT, there is a further problem. The early epidemiological studies showing benefit all involved estrogen alone. The recent studies involve estrogen plus progestin. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
