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Aging Clinical and Experimental Research

, Volume 25, Issue 5, pp 517–525 | Cite as

Optimism and survival: does an optimistic outlook predict better survival at advanced ages? A twelve-year follow-up of Danish nonagenarians

  • Henriette Engberg
  • Bernard Jeune
  • Karen Andersen-Ranberg
  • Torben Martinussen
  • James W. Vaupel
  • Kaare Christensen
Original Article

Abstract

Background and aims

Studies examining predictors of survival among the oldest-old have primarily focused on objective measures, such as physical function and health status. Only a few studies have examined the effect of personality traits on survival, such as optimism. The aim of this study was to examine whether an optimistic outlook predicts survival among the oldest-old.

Methods

The Danish 1905 Cohort Survey is a nationwide, longitudinal survey comprising all individuals born in Denmark in 1905. At baseline in 1998, a total of 2,262 persons aged 92 or 93 agreed to participate in the intake survey. The baseline in-person interview consisted of a comprehensive questionnaire including physical functioning and health, and a question about whether the respondent had an optimistic, neutral or pessimistic outlook on his or her own future.

Results

During the follow-up period of 12 years (1998–2010) there were 2,239 deaths (99 %) in the 1905 Cohort Survey. Univariable analyses revealed that optimistic women and men were at lower risk of death compared to their neutral counterparts [HR 0.82, 95 % CI (0.73–0.93) and 0.81, 95 % CI (0.66–0.99), respectively]. When confounding factors such as baseline physical and cognitive functioning and disease were taken into account the association between optimism and survival weakened in both sexes, but the general pattern persisted. Optimistic women were still at lower risk of death compared to neutral women [HR 0.85, 95 % CI (0.74–0.97)]. The risk of death was also decreased for optimistic men compared to their neutral counterparts, but the effect was non-significant [HR 0.91, 95 % CI (0.73–1.13)].

Conclusion

An optimistic outlook appears to be a significant predictor of survival among the oldest-old women. It may also be a significant predictor for men but the sample size is small.

Keywords

Predictors of mortality Survival Optimism Oldest-old 

Notes

Acknowledgments

The study was supported by U.S. National Institute on Aging Research Grant PO1AG08761. The Danish Aging Research Center is supported by a grant from the VELUX foundation.

Conflict of interest

The authors declare that they have no conflict of interest regarding the paper.

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Henriette Engberg
    • 1
    • 2
  • Bernard Jeune
    • 1
  • Karen Andersen-Ranberg
    • 1
  • Torben Martinussen
    • 3
  • James W. Vaupel
    • 1
    • 4
    • 5
  • Kaare Christensen
    • 1
    • 6
    • 7
  1. 1.Department of Epidemiology, The Danish Aging Research Center, Institute of Public HealthUniversity of Southern DenmarkOdenseDenmark
  2. 2.Research Unit of Clinical Epidemiology, Institute of Clinical ResearchUniversity of Southern Denmark and Centre for National Clinical Databases, South, Odense University HospitalOdense CDenmark
  3. 3.Department of BiostatisticsUniversity of CopenhagenCopenhagenDenmark
  4. 4.Max Planck Institute for Demographic ResearchRostockGermany
  5. 5.Max Planck Odense Center on the Biodemography of AgingOdenseDenmark
  6. 6.Department of Clinical Biochemistry and PharmacologyOdense University HospitalOdenseDenmark
  7. 7.Department of Clinical GeneticsOdense University HospitalOdenseDenmark

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