James E. Enstrom

TL;DR: Both the health practices themselves and their relationship to mortality are shown to be reasonably stable over the 9 1 2 -year period of follow-up, lending support to the hypothesis that good health practices and not the initial health status of the survey respondents are largely responsible for the observed mortality relationships.

TL;DR: The results do not support a causal relation between environmental Tobacco smoke and tobacco related mortality, although they do not rule out a small effect, and the association between exposure to environmental tobacco smoke and coronary heart disease and lung cancer may be considerably weaker than generally believed.

TL;DR: There has been no important decline in either the absolute or relative death rates from all causes and lung cancer for cigarette smokers as a whole compared with never smokers in this large cohort, in spite of a substantial degree of smoking cessation.

TL;DR: This study, which is the first prospective cohort study of Mormons, shows low standardized mortality ratios (SMRs) for this population, relative to those for whites in the general population in the United States, which are defined as 100.