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Partner loss and its effect on frailty trajectories: results from the 13-year follow-up Survey of Health, Ageing and Retirement in Europe (SHARE)
  1. Moritz Oberndorfer1,
  2. Christina Mogg2,
  3. Sandra Haider1,
  4. Igor Grabovac1,
  5. Deborah Drgac1,
  6. Thomas Dorner1,3
  1. 1Department of Social and Preventive Medicine, Medical University of Vienna, Center for Public Health, Vienna, Austria
  2. 2Department of Sport Science, University of Vienna, Vienna, Austria
  3. 3Karl-Landsteiner Institute for Health Promotion Research, BVAEB-Health Promotion Facility Resilienzpark Sitzenberg, Sitzenberg-Reidling, Austria
  1. Correspondence to Moritz Oberndorfer, Department of Social and Preventive Medicine, Medical University of Vienna Center for Public Health, Vienna 1090, Austria; moritz.oberndorfer{at}meduniwien.ac.at

Abstract

Background Frailty is a geriatric syndrome closely linked to a variety of adverse health outcomes. Thus, it is important to identify factors associated with the development of frailty. It was the aim of this study to examine, if, and to what extent partner loss, a highly stressful life event, affects frailty trajectories of community dwelling adults aged 50 or older.

Methods Using six waves of panel data from the Survey of Health, Ageing and Retirement in Europe (SHARE), we investigated the effect of partner loss on frailty trajectories estimating growth curve models. Our sample included 183 502 observations of 83 494 community-dwelling individuals aged 50 or older from 21 European countries collected between 2004 and 2017. Frailty was measured using the validated sex-specific SHARE-Frailty-Instrument including muscular weakness, unintended weight loss, decrease in walking capacity, low physical activity and exhaustion.

Results Our sample contained 79 874 participants who lived in a partnership during their entire observational period and 3620 participants who lost their partner during their observational period. Both men (β=0.184 (95% CI: −0.017 to 0.386), p=0.073) and women (β=0.237 (95% CI: 0.106 to 0.369), p<0.001) showed initial effects of partner loss on frailty, but while only women gradually recovered over time (β=−0.023 (95% CI: −0.039 to −0.008), p=0.002), among men, the effect of partner loss persisted (β<0.001 (95% CI: −0.029 to 0.029), p=0.998).

Conclusion This study revealed that partner loss is followed by elevated frailty. However, while women’s frailty tended to recover from partner loss over time, men’s frailty remained elevated. Notable individual differences in the response of frailty trajectories to partner loss suggest the existence of effect modifiers.

  • elderly
  • gerontology
  • multilevel modelling
  • psychosocial factors
  • social epidemiology

Data availability statement

Data are available in a public, open access repository. The statistical code (STATA) written for data preparation and statistical analysis will be unconditionally shared upon request to the corresponding author.

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Data availability statement

Data are available in a public, open access repository. The statistical code (STATA) written for data preparation and statistical analysis will be unconditionally shared upon request to the corresponding author.

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Footnotes

  • Twitter @MOOberndorfer

  • Contributors MO conceived the original idea and the study design. MO and CM analysed the data and wrote the manuscript. IG, SH, DD and TD critically provided feedback on several drafts of this manuscript.

  • Funding This study received no specific funding. The SHARE project received funding from the German Ministry of Education and Research, the Max Planck Society for the Advancement of Science, the U.S. National Institute on Ageing (U01_AG09740-13S2, P01_AG005842, P01_AG08291, P30_AG12815, R21_AG025169, Y1-AG-4553–01, IAG_BSR06-11, OGHA_04–064, HHSN271201300071C) and from various national funding sources which is gratefully acknowledged (see www.share-project.org).

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Supplemental material This content has been supplied by the author(s). It has not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been peer-reviewed. Any opinions or recommendations discussed are solely those of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and responsibility arising from any reliance placed on the content. Where the content includes any translated material, BMJ does not warrant the accuracy and reliability of the translations (including but not limited to local regulations, clinical guidelines, terminology, drug names and drug dosages), and is not responsible for any error and/or omissions arising from translation and adaptation or otherwise.

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