Four-year reciprocal relationships between personality and functional ability in older adults with and without sensory impairment: focus on neuroticism and agreeableness

Personality and limitations in instrumental activities of daily living in old age: Reciprocal associations across 12 years

Personality traits have been reported to predict difficulties in performing instrumental activities of daily living (IADL) in old age, such as preparing meals or shopping. However, little is known about the reciprocal effects on personality. In this study, we examined bidirectional relationships between personality traits and the capacity to perform IADL using four waves of longitudinal data from 3540 older adults (aged 65 years and older) from the Health and Retirement Study. We applied a random-intercept cross-lagged panel model to separate between- and within-person effects across time and compared it to a traditional cross-lagged panel model. At the between-person level, higher neuroticism and lower conscientiousness were associated with more IADL limitations. Within individuals across time, increases in neuroticism and decreases in conscientiousness and extraversion were associated with increases in IADL limitations 4 years later. In contrast, increases in IADL limitations only predicted increases in neuroticism and decreases in extraversion. These results indicate that some personality traits affect and are affected by limitations in functional capacities in old age. Results of the within-person model build a strong foundation for future personality interventions as a pathway to maintain high functioning in old age.

Trajectories of Pain in Very Old Age: The Role of Eudaimonic Wellbeing and Personality

Pain is common in very old age and in the last years prior to death. However, little is known regarding longitudinal trajectories of pain in very old age and at the end of life. Moreover, whereas medical and morbidity-related factors contributing to pain are established, the role of psychosocial factors, such as eudaimonic wellbeing or personality as potential determinants of late-life pain trajectories has so far not been sufficiently investigated. We used data from the LateLine project. The sample consisted of n = 118 very old adults (M = 90.5 years, SD = 2.8 years) who were living alone at baseline and who had died between 2009 and 2021. They took part in up to 16 measurement occasions (M = 5.2, SD = 4.7, range 1–16) within an observational interval of 7 years. Assessment of pain was based on the SF-36 bodily pain subscale. Key indicators of eudaimonic wellbeing (autonomy, environmental mastery, and purpose in life) as well two of the Big Five personality traits (neuroticism and extraversion) were included as predictors. We controlled in all analyses for gender, education, subjective health, and depressive symptoms. Contrasting pain trajectories over chronological age (time since birth) vs. time to death, a time-to-death-related model resulted in a better model fit and accounted for a larger amount of pain variability than the age-related model. Mean-level change in pain, both over age and time to death, was not significant, but there was substantial interindividual variability in intraindividual trajectories. Age-related change in pain was significantly predicted by autonomy and neuroticism, with increasing pain among those who had lower initial autonomy scores and higher initial neuroticism scores. With regard to time-to-death-related trajectories of pain, higher purpose in life as well as lower extraversion at baseline predicted less increase or even steeper decrease in pain with approaching death. Our findings suggest that, despite overall mean-level stability in pain both over age and time to death, there is a substantial proportion of individuals who reveal deterioration in pain over time. Regarding the role of psychosocial predictors, personality traits and eudaimonic wellbeing are related with late-life pain trajectories both over age and time-to-death.

Importance of personality and coping expectancy on patient-reported hearing disability, quality of life and distress level: a study of patients referred to an audiology service

Purpose

According to the World Health Organization (WHO), hearing loss (HL) affects up to 15% of the world’s adult population. Coping and personality are hypothesized to underlie quality of life (QoL) and distress scores. We aimed to study the importance of personality and coping in persons with HL for self-reported hearing disability, QoL, and distress.

Methods

A cross-sectional survey was carried out, including one hundred and fifty-eight adults seeking hearing aids. Pure-tone average hearing thresholds (PTA) were determined for each ear. A revised version of the Abbreviated Profile of Hearing Aid Benefit (APHAB) served as a measure of self-reported hearing disability. Further, the generic part of the European Organization for Research and Treatment (EORTC) QoL questionnaire and the General Health Questionnaire (GHQ) (distress measure) were answered. Levels of neuroticism and the Theoretically Originated Measure of the Cognitive Activation Theory of Stress (TOMCATS) coping expectancy were determined.

Results

Hearing disability was determined by PTA (better ear) and level of neuroticism. Distress and QoL were determined by neuroticism and coping.

Conclusion

More neuroticism was associated with worse outcome for the variables hearing disability, distress, and QoL. Helplessness and hopelessness were associated with worse hearing disability, increased distress, and lowered QoL. Patient reported hearing disability was also associated with PTA (better ear). There is a need to investigate further the associations between hearing disability and QoL to psychosocial parameters.

Associations Between Cognitive Abilities and 20-Year Personality Changes in Older Adults in the ILSE Study: Does Health Matter?

OBJECTIVES

We used data from the Interdisciplinary Longitudinal Study on Adult Development (ILSE study) to investigate whether associations of cognitive abilities with late-life personality changes are moderated by individuals' physical health.

METHOD

Individuals born between 1930 and 1932 (n = 473; mean baseline age: 62.87 years) were assessed up to four times over a period of about 20 years (M = 20.34 years). Cognitive abilities were assessed based on multiple tests representing various cognitive functions. In addition, the Big Five personality traits were measured. Study participants' health was rated by a physician based on several in-depth medical examinations.

RESULTS

Health appeared as a significant moderator of the associations between cognitive abilities and personality trajectories: First, lower cognitive abilities were associated with an increase in neuroticism in individuals with poor health, but not in those with good health. Second, lower cognitive abilities were related with an increase in agreeableness in older adults with good health, but with a decrease in agreeableness among those with poor health. Third, better cognitive abilities were associated with stability in conscientiousness, but only among individuals with poorer health.

DISCUSSION

Our findings suggest that once health is compromised, cognitive abilities may become a compensatory resource to prevent undesirable personality changes.

Assimilative and accommodative coping in older adults with and without sensory impairment: four-year change and prospective relations with affective well-being

Objectives: Sensory impaired older adults may be particularly dependent on coping strategies such as assimilation (or tenacious goal pursuit [TGP]) and accommodation (or flexible goal adjustment [FGA]) to secure high levels of well-being. We investigated if late-life changes in these coping strategies and prospective associations of TGP and FGA with affective well-being vary according to sensory impairment status. Method: Our study sample consisted of 387 adults aged 72-95 years (M = 82.50 years, SD =4.71 years) who were either visually impaired (VI; n = 121), hearing impaired (HI; n = 116), or sensory unimpaired (UI; n = 150). One hundred sixty-eight individuals were reassessed after approximately 4 years. Results: Both VI and HI revealed a decrease in TGP, whereas TGP remained stable in UI. For FGA, a significant increase in HI was observed, whereas a significant decline emerged in UI. Controlling for age, gender, and cognitive abilities, higher TGP at baseline was significantly associated with higher negative affect 4 years later in VI. Moreover, the positive association between baseline FGA and subsequent positive affect was stronger in HI than in UI older adults. Conclusion: Our findings suggest that older adults with sensory impairments reveal trajectories of assimilative and accommodative coping and associations of TGP and FGA with affective well-being that are different from sensory unimpaired individuals.