The influence of personality traits on perception of pain in older adults – Findings from the Swedish National Study on Aging and Care – Blekinge study

Are We Any Closer to Understanding How Chronic Pain Develops? A Systematic Search and Critical Narrative Review of Existing Chronic Pain Vulnerability Models

Identifying biopsychosocial factors underlying chronic pain vulnerability is essential for the design of preventative efforts. Multiple chronic pain vulnerability models exist, however, there is a lack of comprehensive evaluation of these models in the literature, potentially due to the lack of guidelines that specify the criteria by which these types of work should be assessed. In this work, we created evaluation criteria (based on the general goals of conceptual models), and we then used them to critically review the chronic pain vulnerability models available in the current peer-reviewed literature (identified through a systematic search). Particularly, we evaluated the models on the basis of conceptual clarity/specificity of measures, depth of description of aetiological and mechanistic factors, use of a whole system approach, and quality of the evidence associated with the models. We found nine conceptual models that have been explored in detail (eg, fear avoidance model, diathesis-stress model). These models excel at clarity and are supported mostly by self-report evidence of a psychological nature (anxiety sensitivity, pain catastrophizing, etc.), but provide little explanation of mechanistic and aetiological factors. In the future, models could be improved by complementing them with proposals from other models and exploring potential causal factors and mechanisms maintaining the condition. This task could be carried out through prospective cohort studies, and computational approaches, amongst others.

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.

Longitudinal association between personality traits and homebound status in older adults: results from the National Health and Aging Trends Study

Background

Personality is associated with predictors of homebound status like frailty, incident falls, mobility, and depression. However, the relationship between personality traits and homebound status is unclear. This study aims to examine the longitudinal association between personality traits and homebound status among older adults.

Methods

Using data of non-homebound community-dwelling adults aged 65 years and older in the 2013 and 2014 waves (baseline) of the National Health and Aging Trends Study (N = 1538), this study examined the association between personality traits and homebound status. Homebound status (non-homebound, semi-homebound, and homebound) was determined by the frequency of going outside, difficulty in going outside, and whether there was help when going outside. Personality traits, including conscientiousness, extraversion, neuroticism, openness, and agreeableness were assessed using the 10-item Midlife Development Inventory on a rating scale from 1 (not at all) to 4 (a lot). Ordered logistic regression models were used to examine whether personality traits predicted homebound status in later 3 years with and without adjusting covariates.

Results

The sample was on average 77.0 ± 6.70 years old, and 55% were female. The majority were non-Hispanic whites (76%), and received some college or vocational school education or higher (55%). Homebound participants tended to be less educated older females. Three years later, 42 of 1538 baseline-non-homebound participants (3%) became homebound, and 195 participants (13%) became semi-homebound. Among these five personality traits, high conscientiousness (adjusted odds ratio [OR] = 0.73, p < 0.01) was associated with a low likelihood of becoming homebound after adjusting demographic and health-related covariates.

Conclusions

These findings provided a basis for personality assessment to identify and prevent individuals from becoming homebound.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12877-022-02771-8.

Relationship Between Pain Beliefs and Postoperative Pain Outcomes After Total Knee and Hip Replacement Surgery

PURPOSE

The aim of this study was to investigate the relationship between pain beliefs and postoperative pain outcomes in patients who underwent total knee replacement or total hip replacement.

DESIGN

This was a descriptive, prospective, and cross-sectional study.

METHODS

The study population included all patients who met the sampling criteria and agreed to participate in the study between April 2019 and January 2020 (N = 91). Data were collected using a sociodemographic and clinical characteristics form, the Pain Beliefs Questionnaire (PBQ), and the Turkish Revised American Pain Society Patient Outcome Questionnaire (APS-POQ-R-TR). Sociodemographic and clinical data and PBQ scores were obtained preoperatively, and the APS-POQ-R-TR was applied 24 hours after surgery.

FINDINGS

In the first 24 hours, the mean lowest pain level was 2.96 ± 2.29; mean highest pain level was 8.05 ± 2.66. In the evaluation of the relationships between patients' sociodemographic characteristics and mean PBQ organic and psychological beliefs scores, statistically significant differences were observed according to income and education level. Mean PBQ organic and psychological beliefs scores were not significantly associated with APS-POQ-R-TR total scores or subscale scores for pain severity, activity interference, sleep interference, and perception of care; affective effect of pain; or adverse effects of pain treatment.

CONCLUSIONS

The results of our study indicate that education level and socioeconomic status were associated with patients' pain beliefs, but we observed no relationship between pain beliefs and perceived pain outcomes.

Pain among older adults from a gender perspective: findings from the Swedish National Study on Aging and Care (SNAC-Blekinge)

BACKGROUND AND AIMS

Pain is common in the elderly population and its prevalence varies according to the studied disease, clinical setting, sex and age. This study examines pain in an aging population from a gender perspective.

METHODS

The Swedish National study on Aging and Care (SNAC) is conducted at four research centres. Participants were recruited from the baseline sample (n=1402) at one of the research centres, SNAC-Blekinge. Individuals aged 60 years and older were included and non-participation was documented. Research personnel conducted the medical examination on two occasions.

RESULTS

The prevalence of pain was 769/1402 (54.8%), distributed as 496/817 (64.5%) women and 273/585 (35.5%) men,p<0.01. Women reported more pain located in the vertebral column,p<0.01. The most common pain location was the legs and feet. About 84% reported pain intensity as 4 or higher on the visual analogue scale (VAS). Pain intensity declines with age among men,p<0.01. The most frequent treatment was painkillers. A total of 128/263 (48.7%) of the men received no pain treatment compared with 177/478 (37.0%) of the women,p<0.01. In a multivariate logistic regression model, women yielded the highest OR [OR 1.94 (C.I. 1.51-2.49)] for pain.

CONCLUSIONS

Pain is common among older adults and there are significant differences between the sexes. Almost 55% of participants reported pain, predominantly women. In the majority of cases the intensity was rated as moderate or severe (VAS >4) and women rated higher than men p<002. Almost half of the men (48.7%) did not receive any treatment compared to 37% of the women, p<001.