AI Article Synopsis
- * We identified four patterns of stress over time, with three showing a steady decrease and one displaying an inverted U shape that peaked around age 70.
- * Moderate and high-stress levels were linked to higher mortality rates compared to low-stress levels, and the analysis revealed that the relationship between stress and mortality was more complex than either theory could fully explain.
Article Abstract
We examined long-term patterns of stressful life events (SLE) and their impact on mortality contrasting two theoretical models: allostatic load (linear relationship) and hormesis (inverted U relationship) in 1443 NAS men (aged 41-87 in 1985; M = 60.30, SD = 7.3) with at least two reports of SLEs over 18 years (total observations = 7,634). Using a zero-inflated Poisson growth mixture model, we identified four patterns of SLE trajectories, three showing linear decreases over time with low, medium, and high intercepts, respectively, and one an inverted U, peaking at age 70. Repeating the analysis omitting two health-related SLEs yielded only the first three linear patterns. Compared to the low-stress group, both the moderate and the high-stress groups showed excess mortality, controlling for demographics and health behavior habits, HRs = 1.42 and 1.37, ps <.01 and <.05. The relationship between stress trajectories and mortality was complex and not easily explained by either theoretical model.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180855 | PMC |
| http://dx.doi.org/10.4061/2011/896109 | DOI Listing |
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