Personality Predicts Mortality Risk: An Integrative Data Analysis of 15 International Longitudinal Studies

This study examined the Big Five personality traits as predictors of mortality risk, and smoking as a mediator of that association. Replication was built into the fabric of our design: we used a Coordinated Analysis with 15 international datasets, representing 44,094 participants. We found that high neuroticism and low conscientiousness, extraversion, and agreeableness were consistent predictors of mortality across studies. Smoking had a small mediating effect for neuroticism. Country and baseline age explained variation in effects: studies with older baseline age showed a pattern of protective effects (HR<1.00) for openness, and U.S. studies showed a pattern of protective effects for extraversion. This study demonstrated coordinated analysis as a powerful approach to enhance replicability and reproducibility, especially for aging-related longitudinal research.Funding support for this project was provided by the National Institute on Aging: P01-AG043362 (Integrative Analysis of Longitudinal Studies of Aging (IALSA), [Scott M. Hofer (PI)]), and Daniel K. Mroczek (CoInvestigator and Project Leader of the IALSA Personality & Health Project, as well as R01-AG018436 [Personality & Well-Being Trajectories in Adulthood, Daniel K. Mroczek, PI])

Appendix D. Supplemental methods on species selection.

Supplemental methods on species selection

Appendix H. Figure of mean plant size in climate treatments and each study site across all range groups.

Figure of mean plant size in climate treatments and each study site across all range groups

Appendix G. Figure of survivorship of each range group at each site.

Figure of survivorship of each range group at each site

Appendix C. Table of selected species for the experiment.

Table of selected species for the experiment

Appendix E. Table of ANOVA results.

Table of ANOVA results

Appendix F. Figure of recruitment of individual species in the four climate treatments at each site.

Figure of recruitment of individual species in the four climate treatments at each site

Appendix A. Table of locations, climate data, and soils descriptions for experimental study sites.

Table of locations, climate data, and soils descriptions for experimental study sites

Appendix B. Figure of soil temperature and matric potential in the four climate treatments at each site.

Figure of soil temperature and matric potential in the four climate treatments at each site