TY - JOUR
T1 - Lifetime trauma, perceived control, and all-cause mortality
T2 - Results from the midlife in the United States study
AU - Elliot, Ari J.
AU - Turiano, Nicholas A.
AU - Infurna, Frank
AU - Lachman, Margie E.
AU - Chapman, Benjamin P.
N1 - Funding Information:
This research was supported by a grant from the United States Department of Health and Human Services, National Institutes of Health, National Institute on Aging (R01AG044588) awarded to Benjamin P. Chapman.
Publisher Copyright:
© 2018 American Psychological Association.
PY - 2018/3
Y1 - 2018/3
N2 - Objective: To investigate whether lifetime-trauma exposure predicts all-cause mortality and whether this association is mediated or moderated by perceived control. Method: A sample of middle-aged and older adults (N = 4,961) who participated in the second wave of the Midlife in the United States Study (MIDUS) provided data. Lifetime trauma was operationalized using the reported number of potentially traumatic experiences spanning childhood through adulthood. Both the perceived constraints and mastery dimensions of perceived control were examined. Cox regression models tested main effects and interactions of lifetime trauma with mastery and constraints predicting 10-year mortality risk. Results: There was a significant main effect of lifetime trauma, b = .06, hazard ratio (HR) = 1.07, p = .032, and an interaction of trauma with mastery, b =-.08, p = .004. A greater number of traumatic experiences was associated with increased mortality risk at below-average levels of mastery,-1 SD; HR = 1.14, p < .001, but not at above-average levels, +1 SD; HR = 0.97, p = .48. This interaction persisted after further adjustment for health status, psychological, and behavioral covariates. An association of constraints with elevated mortality risk, HR = 1.33, p = .008, was attenuated in a fully adjusted model, HR = 1.06, p = .26. Conclusion: A strong sense of mastery may buffer elevated mortality risk associated with exposure to traumatic experiences. Findings extend evidence that mastery may foster resilience to the adverse health effects of traumatic stressors, whereas constraints may show stronger independent associations with health outcomes.
AB - Objective: To investigate whether lifetime-trauma exposure predicts all-cause mortality and whether this association is mediated or moderated by perceived control. Method: A sample of middle-aged and older adults (N = 4,961) who participated in the second wave of the Midlife in the United States Study (MIDUS) provided data. Lifetime trauma was operationalized using the reported number of potentially traumatic experiences spanning childhood through adulthood. Both the perceived constraints and mastery dimensions of perceived control were examined. Cox regression models tested main effects and interactions of lifetime trauma with mastery and constraints predicting 10-year mortality risk. Results: There was a significant main effect of lifetime trauma, b = .06, hazard ratio (HR) = 1.07, p = .032, and an interaction of trauma with mastery, b =-.08, p = .004. A greater number of traumatic experiences was associated with increased mortality risk at below-average levels of mastery,-1 SD; HR = 1.14, p < .001, but not at above-average levels, +1 SD; HR = 0.97, p = .48. This interaction persisted after further adjustment for health status, psychological, and behavioral covariates. An association of constraints with elevated mortality risk, HR = 1.33, p = .008, was attenuated in a fully adjusted model, HR = 1.06, p = .26. Conclusion: A strong sense of mastery may buffer elevated mortality risk associated with exposure to traumatic experiences. Findings extend evidence that mastery may foster resilience to the adverse health effects of traumatic stressors, whereas constraints may show stronger independent associations with health outcomes.
KW - Mastery
KW - Mortality
KW - Perceived control
KW - Stress
KW - Trauma
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U2 - 10.1037/hea0000585
DO - 10.1037/hea0000585
M3 - Article
C2 - 29369676
AN - SCOPUS:85040913507
SN - 0278-6133
VL - 37
SP - 262
EP - 270
JO - Health Psychology
JF - Health Psychology
IS - 3
ER -