Pain, functional limitations, and aging

Heterogeneity in Husbands' and Wives' Physical Pain Trajectories Over Mid-Later Years: Biopsychosocial Stratification and Implications for Later-Life Well-Being

BACKGROUND AND OBJECTIVES

The present study investigated pain trajectories of husbands and wives over their mid-later years, the grouping of these trajectories, and differences in baseline biopsychosocial profiles and health and well-being outcomes in later years across the pain trajectory groups.

RESEARCH DESIGN AND METHODS

Growth mixture modeling was used to identify latent classes of 244 husbands' and wives' physical pain trajectories over their mid-later years (1994-2015, average ages of 44-65 years). Analyses were conducted to identify how these pain trajectory classes were associated with respondents' biopsychosocial profiles in 1994 and health and well-being in later years (2017 [>67 years]).

RESULTS

The individual pain trajectories of husbands and wives were clustered into 3 heterogeneous groups with differing trajectory patterns. Nonnormative pain trajectory groups (with either a high pain level and/or persistent pain) were associated with adverse baseline biopsychosocial characteristics. These groups also experienced poorer health and well-being outcomes in later years (2017) compared to those with consistently low pain after controlling for lagged measures in 2015.

DISCUSSION AND IMPLICATIONS

The identification of pain trajectory groups and characteristics of group members provides a potentially useful prognostic tool for early preventive intervention efforts, treatment, and policy formation. Such interventions can promote and develop resiliency factors, thereby aiding in the redirection of middle-aged husbands' and wives' adverse pain trajectories.

The Dog-Owner Relationship: Refinement and Validation of the Italian C/DORS for Dog Owners and Correlation with the LAPS

The Cat/Dog-Owner Relationship Scale (C/DORS) can be administered to both dog and cat owners. However, the scale as a whole has never been validated on a sample of dog owners. Furthermore, it has never been translated into Italian. The aim of this study was to translate the C/DORS into Italian, modify its response scale in order to improve the degree of response variability, and test its validity and reliability on a sample of dog-owners. Exploratory factor analysis revealed the same three-factor structure (Perceived Emotional Closeness = PEC, Pet-Owner Interactions = POI, Perceived Costs = PC) as the original English version, although some items had to be removed because of low- or cross-loadings. The validity of the construct was confirmed by confirmatory factor analysis, by the correlations between each of the subscales and the C/DORS total score, and by the correlations with the Lexington Attachment to Pets Scale. Cronbach's α values for each subscale were above acceptable levels. Student owners scored higher on PEC and POI than owners with other occupations. Owners of dogs with behavioural problems scored lower on PEC and higher on PC. Keeping the dog outdoor was associated with lower POI. Finally, pet dog owners scored higher on PEC than AAI dog owners.

Cross-Sectional Examination of Musculoskeletal Pain and Physical Function in a Racially and Socioeconomically Diverse Sample of Adults

BACKGROUND

Musculoskeletal pain alters physiological function, which may be evidenced as early as middle age. Previous research has concluded that middle-aged adults are a high-risk group for musculoskeletal pain and report functional limitations similar to older adults. However, few studies have examined the relationships between musculoskeletal pain and physical function, using objective performance measures in a sample of racially and socioeconomically diverse adults. Thus, this study examined musculoskeletal pain in relation to physical function in middle-aged (30-64 years) White and Black adults and investigated whether the relationship varied by sociodemographic characteristics.

METHODS

This cross-sectional examination incorporated data from the Healthy Aging in Neighborhoods of Diversity across the Life-Span Study. Participants (n = 875) completed measures of musculoskeletal pain and objective measures of physical performance (ie, lower and upper body strength, balance, and gait abnormalities). Physical performance measures were standardized to derive a global measure of physical function as the dependent variable.

RESULTS

Approximately, 59% of participants identified at least 1 pain sites (n = 518). Multivariable regression analyses identified significant relationships between greater musculoskeletal pain and poorer physical function (β = -0.07, p = .031), in mid midlife (β = -0.04, p = .041; age 40-54) and late midlife (β = -0.05, p = .027; age 55-64).

CONCLUSIONS

This study observed that musculoskeletal pain was associated with poorer physical function within a diverse group of middle-aged adults. Future research should longitudinally explore whether chronic musculoskeletal pain identified at younger ages is associated with greater risk for functional limitation and dependence in later life.

A Pilot Study of a Chronic Pain Self-Management Program Delivered by Community Health Workers to Underserved African American Older Adults

OBJECTIVE

African American older adults living in disadvantaged communities are disproportionately burdened by disabling pain. To address their needs, we tested the feasibility and potential effects of a cognitive-behavioral chronic pain self-management program delivered by community health workers.

DESIGN

A single-group, pre-post evaluation of the STEPS-2 (Seniors using Technology to Engage in Pain Self-management) intervention, in which participants learned pain-management skills through web-based videos. They were also given wearable activity trackers to facilitate incremental increases in walking. In weekly telephone calls, community health workers helped participants apply skills and set goals.

SUBJECTS/SETTING

Thirty-one adults in Detroit, Michigan (97% African American, 97% female, mean 68.7 years), with chronic musculoskeletal pain.

METHODS

Participants completed telephone surveys at baseline and eight weeks. We measured changes in PROMIS pain interference and pain intensity, as well as Patient Global Impression of Change in pain and functioning. Feasibility indicators included participant engagement and satisfaction, and fidelity to session protocols by community health workers.

RESULTS

Participants on average completed 6.6/7 sessions, and 100% agreed or strongly agreed that they improved their understanding of pain management. Average community health worker fidelity score was 1.79 (0 to 2 scale). Pain interference decreased from baseline to post-program (T-score 61.6 to 57.3, P=.000), as did pain intensity (0 to 10 scale, 6.3 to 5.1, P=.004). Approximately 90% of participants reported that pain and function were at least "a little better" since baseline.

CONCLUSIONS

An intervention combining mobile health tools with support from community health workers holds promise for improving pain outcomes among underserved older adults.

Development and Validation of a Risk Score to Predict the First Hip Fracture in the Oldest Old: A Retrospective Cohort Study

BACKGROUND

To evaluate whether the common risk factors and risk scores (FRAX, QFracture, and Garvan) can predict hip fracture in the oldest old (defined as people aged 80 and older) and to develop an oldest-old-specific 10-year hip fracture prediction risk algorithm.

METHODS

Subjects aged 80 years and older without history of hip fracture were studied. For the derivation cohort (N = 251, mean age = 83), participants were enrolled with a median follow-up time of 8.9 years. For the validation cohort (N = 599, mean age = 85), outpatients were enrolled with a median follow-up of 2.6 years. A five-factor risk score (the Hong Kong Osteoporosis Study [HKOS] score) for incident hip fracture was derived and validated, and its predictive accuracy was evaluated and compared with other risk scores.

RESULTS

In the derivation cohort, the C-statistics were .65, .61, .65, .76, and .78 for FRAX with bone mineral density (BMD), FRAX without BMD, QFracture, Garvan, and the HKOS score, respectively. The category-less net reclassification index and integrated discrimination improvement of the HKOS score showed a better reclassification of hip fracture than FRAX and QFracture (all p < .001) but not Garvan, while Garvan, but not HKOS score, showed a significant over-estimation in fracture risk (Hosmer-Lemeshow test p < .001). In the validation cohort, the HKOS score had a C-statistic of .81 and a considerable agreement between expected and observed fracture risk in calibration.

CONCLUSION

The HKOS score can predict 10-year incident hip fracture among the oldest old in Hong Kong. The score may be useful in identifying the oldest old patients at risk of hip fracture in both community-dwelling and hospital settings.

Pain as a predictor of frailty over time among older Mexican Americans

The objective of this study was to examine pain as a predictor of frailty over 18 years of follow-up among older Mexican Americans who were nonfrail at baseline. Data were from a prospective cohort study of 1545 community-dwelling Mexican Americans aged ≥67 years from the Hispanic Established Populations for the Epidemiological Study of the Elderly (1995/1996-2012/2013). Frailty was defined as meeting 2 or more of the following: unintentional weight loss of >10 pounds, weakness, self-reported exhaustion, and slowness. The independent predictor was self-reported pain. Covariates included age, sex, marital status, education, comorbid conditions, body mass index, Mini-Mental State Examination, depressive symptoms, and limitation in activities of daily livings. General equation estimation was performed to estimate the odds ratio of frailty as a function of pain. A total of 538 participants (34.8%) reported pain at baseline. The prevalence of frailty among those with pain ranged from 24.4% in wave 3 to 41% in wave 8. The odds ratio of becoming frail over time as a function of pain was 1.71; 95% confidence interval: 1.41 to 2.09 after controlling for all covariates. Older age, hip fracture, high depressive symptoms, and activities of daily living disability were also associated with higher odds of becoming frail over time. Female participants and those with higher levels of education and high Mini-Mental State Examination scores were less at risk. In conclusion, pain was a significantly predictor of frailty. Early assessment and better management of pain may prevent early onset of frailty in older Mexican Americans.

Pain prevalence among residents living in nursing homes and its association with quality of life and well-being

BACKGROUND

Pain is common and often more complex to assess among nursing homes residents with cognitive impairments. Thus, more research is needed of different pain assessment methods in elderly care and how these assessments outcomes are related to quality of life, as there mostly should be a negative relationship. There is a risk that pain are under diagnosed among persons with cognitive impairment.

AIM

The aim was to describe and compare pain prevalence among nursing home residents (1) using different pain assessment methods (2) in relation to cognitive status and to (3) examine associations between pain and quality of life or well-being.

METHODS

A cross-sectional correlational design was used, participants were 213 nursing home residents and data were collected through interviews using standardised protocols. Instrument used were Katz index of ADL, Mini-Mental-State-Examination, Quality of Life in Late-Stage Dementia scale, WHO-5 well-being index, Numeric Rating Scale and Doloplus-2 scale.

RESULTS

The results showed high pain prevalence, but no significant difference based on cognitive level. Pain classification at the individual level varied somewhat when different instruments are used. The results indicated that use of a single-item proxy-measure for pain tends to show higher pain prevalence and was not statistically significant related to quality of life. The relationship with quality of life was statistically significant when self-rated pain instruments or multi-component observation were used.

CONCLUSIONS

The study shows that it is difficult to estimate pain in residents living at nursing homes and that it continues to be a challenge to solve. Self-rated pain should be used primarily to assess pain, and a multi-component observation scale for pain should be used when residents are cognitively impaired. Both self-rated pain and multi-component observation also support the well-known link between pain and quality of life. Single-item proxy assessments should only be used in exceptional cases.

The role of electrotherapy in reducing the pain of patients with knee osteoarthritis during the COVID-19 pandemic

Introduction. Osteoarthritis is considered to be the most common form of arthritis and a leading disability cause worldwide, especially due to the painful symptom. The latter is a clinical marker in evaluating the limits of joint mobility and therefore, the pain reduction is a goal of the recovery treatment for patients with knee osteoarthritis. The purpose of this study was to show whether the pain phenomenon characteristic of knee osteoarthritis can be reduced by electrotherapy, even in the context of the COVID-19 pandemic. Material and method. The study lasted 5 months and included 171 patients diagnosed clinically and radiologically with knee osteoarthritis. The followed parameters were pain, physical dysfunction in daily activities, anxiety and quality of life. Results and discussions. The two groups of studied patients were homogeneous in terms of weight by gender and age groups. The evaluation of patients according to scales enabled the registration of statistically significant values, the value of p <0.05, which explains the validation of the working hypothesis. The feeling of pain is closely related to the level of anxiety. Conclusions. Analgesic electrotherapy significantly reduced the pain syndrome of the patients for whom it was used. It has been shown that the patients' anxiety can influence the pain phenomenon. Given the conditions caused by the Covid-19 pandemic, the anxiety of the patients who were in the outpatient department to receive recovery treatment was increased, but after the recovery treatment there was a decrease, so these patients' quality of life increased. Keywords: pain, analgesic electrotherapy, knee osteoarthritis, recovery treatment,

Trends in Pain Prevalence among Adults Aged 50 and Older across Europe, 2004 to 2015

Objectives: We examine recent trends in pain prevalence among adults aged 50+ across Europe. Methods: Data for 15 countries from the Survey of Health, Ageing, and Retirement in Europe are examined for two periods: 2004-2011 and 2013-2015. Trends are shown descriptively, using a multilevel modeling strategy controlling for covariates, and modeled on a country-specific basis. Results: Population-level pain prevalence ranges from about 30% to about 60% depending on the country and year. Pain is more prevalent in women and generally increases with age. There is an increase in prevalence over time, net of age, and other predictors. Prevalence increased with an annual average of 2.2% between 2004 and 2011 and 5.8% between 2013 and 2015, in fully adjusted models. Discussion: Trends in pain prevalence have implications for disability, healthcare utilization, productivity, and population health. These findings are not optimistic but align with other population-wide studies, suggesting a global trend of rising pain prevalence.

Age as a Mediator of tDCS Effects on Pain: An Integrative Systematic Review and Meta-Analysis

Introduction: The transcranial direct current stimulation (tDCS) is a neuromodulatory technique with the potential to decrease pain scores and to improve chronic pain treatment. Although age is an essential factor that might impact the tDCS effect, most studies are solely conducted in adults. Therefore, the age limitation presents a critical research gap in this field and can be shown by only a handful of studies that have included other age groups. To examine the evidence upon the tDCS effect on pain scores on children, adolescents, or elderly, and indirectly, to infer the age-dependent impact on tDCS effects, we conducted a systematic review and meta-analysis.

Methods: A systematic review searching the following databases: PubMed, EMBASE, and Science Direct using the following search terms adapted according to MeSh or Entree: [(“Adolescent” OR “Children” OR “Elderly”) AND (“tDCS”) AND (“Pain” OR “Pain threshold”) AND (“dorsolateral prefrontal cortex” OR “Motor cortex)] up to April 20th, 2020. We retrieved 228 articles, 13 were included in the systematic review, and five studies with elderly subjects that had their outcomes assessed by pain score or pain threshold were included in the meta-analysis.

Results: For the analysis of pain score, 96 individuals received active stimulation, and we found a favorable effect for active tDCS to reduce pain score compared to sham (P = 0.002). The standardized difference was −0.76 (CI 95% = −1.24 to −0.28). For the pain threshold, the analysis showed no significant difference between active and sham tDCS. We reviewed two studies with adolescents: one study using anodal tDCS over the prefrontal cortex reported a reduction in pain scores. However, the second study reported an increase in pain sensitivity for the dorsolateral prefrontal cortex (DLPFC) stimulation.

Conclusion: Our findings suggest tDCS may reduce pain levels in the elderly group. Nevertheless, the small number of studies included in this review—and the considerable heterogeneity for clinical conditions and protocols of stimulation present—limits the support of tDCS use for pain treatment in elderly people. Larger studies on the tDCS effect on pain are needed to be conducted in elderly and adolescents, also evaluating different montages and electrical current intensity.

Functional Limitations Mediate the Relationship Between Pain and Depressive Symptoms in Former NFL Athletes

The objective of this study was to analyze data from the National Football League Player Care Foundation Study of Retired NFL Players to understand potential risks for depressive symptoms in former athletes by investigating the relationship between pain and depressive symptoms in a multivariate context, while simultaneously exploring the potential connection with functional limitations. Descriptive statistics were used to describe the study sample and to conduct bivariate comparisons by race and age cohort. Linear regression models were conducted in the subsample of respondents reporting on depressive symptoms using the PHQ-9. Models examine the relationship of bodily pain, injury as a reason for retirement or not re-signing with a team, length of NFL career, sociodemographic characteristics, chronic conditions, and functional limitations to depression. Interaction terms tested whether race and age moderated the effect of bodily pain and functional limitations on depressive symptoms. Bivariate associations revealed no significant differences between younger and older former players in indicators of pain and only slightly higher functional limitations among younger former players. In the multivariate models, pain was significantly associated with depressive symptoms (β = 0.36; p < .01), net of a range of relevant controls. Adding an index of functional limitations reduced this association by nearly half (β = 0.20; p < .01) and functional limitations was significantly associated with depressive symptoms (β = 0.40; p < .01). No statistically significant interactions were found. Overall, bodily pain was strongly associated with depressive symptoms. After accounting for the effects of functional limitations, this association was notably reduced. These results may be useful in identifying aging-related physical declines in relatively younger adult men who may be at the greatest risk for depression. They highlight how physical functionality and activity may mitigate the risk of depression, even in the presence of significant bodily pain.

Pain and Its Impact on Functional Health: 7-Year Longitudinal Findings among Middle-Aged and Older Adults in Indonesia

Pain is a growing public health issue worldwide, but there is limited population-based evidence in low- and middle-income country settings. Using nationwide Indonesian Family Life Survey (IFLS) data in 2007 and 2014, this research sets out to investigate the associations between changes in pain status between two time points and its impact on functional health outcomes among middle-aged and older adults in Indonesia. Analyses focused on 7936 adults aged 50 years and older in 2014 who responded to both waves. Functional health was assessed using a composite score of functional limitations (range 20–100), representing difficulty in performing activities of daily living, and grip strength (kilograms). Multivariate linear regression models were used to analyse associations between pain measured in 2007 and 2014 and functional health in 2014. Severe pain in the latest wave of IFLS was associated with older age, female, lower education, having chronic conditions or depressive symptoms. Notably, those who reported ‘low–medium’ pain in 2007 and ‘severe’ pain in 2014 belonged to the most vulnerable group with worst functional health outcomes (4.96 points higher limitation scores and 1.17 kg weaker average grip strength). Findings have implications for public health policy in monitoring and management of pain including related co-morbidities as an increasingly critical component of population ageing.

[Pain management in nursing care in outpatient older adults in need of care]

Pain management in nursing care in outpatient older adults in need of care Abstract. Background: International data report a prevalence rate for chronic pain of up to 50 % in community dwelling older adults (> 65 years). A national study reported a prevalence rate of 68,5 % among outpatient adults (≥ 18 years). Nursing care has an important meaning in pain management. However, previous research on the quality of pain management in nursing care is insufficient. Aim: The aim of this study is to evaluate the appropriateness of pain management in nursing care in our target group. Method: The cross-sectional study is based on data from ACHE. The study comprises 219 patients. Information on subjective pain experience and pain management were obtained by face-to-face interviews and nursing documentation. Results: Our findings indicate considerable deficits in terms of pain management in nursing care. Results show a lack of systematic pain assessment as well as missing documentation of therapeutic aims and pain management in nursing care. Conclusions: The identified deficits might be the result of current framework conditions that separate nursing pain treatment in Volume V and Volume XI of the German Social Security Code services. Appropriateness in pain management in nursing care can only be ensured if framework conditions are optimized.

Severe functional limitation due to pain & emotional distress and subsequent receipt of prescription medications among older adults with cancer

BACKGROUND

Certain cancer types and subsequent treatment can cause or worsen pain and emotional distress, leading to functional limitation, particularly among a growing population of older adults with cancer.

METHODS

We constructed a national sample of older adult Medicare beneficiaries with cancer using the 2007-2012 Surveillance, Epidemiology and End Results (SEER)-Medicare Health Outcomes Survey (MHOS) database linked to Medicare Part D enrollment and prescription claims data. MHOS survey responses described functional limitations due to pain and emotional distress. Using multivariable logistic regression, we estimated the association between participant characteristics and patient-reported functional limitation due to pain and emotional distress and subsequent prescription medication use.

RESULTS

Among 9105 older adults with cancer, aged 66-102 years (y), 68.6% reported moderate to severe functional limitation due to pain, and 48.3% reported moderate to severe functional limitation due to emotional distress. Nearly 10% reported severe functional limitation due to co-occurring symptoms of pain and emotional distress. Significant predictors of severe functional limitation due to co-occurring symptoms included age ≥ 80y (ref: 66-69y, adjusted relative risk (aRR): 1.74; 95% confidence interval (CI) 1.39-2.18, p < .001), stage IV disease at diagnosis (ref: stage I, aRR: 2.08; CI 1.52-2.86, p < .001), and lung cancer (ref: breast cancer, aRR: 1.84; CI 1.30-2.61, p < .001). Among 892 participants reporting co-occurring symptoms, 32.5% received neither pain nor emotional distress prescription medication.

CONCLUSIONS

Functional limitation due to pain and emotional distress persist among older adults with cancer, particularly octogenarians. Efforts to identify and target unmet supportive care needs to maintain functional independence are needed.

Resident Challenges With Pain and Functional Limitations in Chinese Residential Care Facilities

BACKGROUND AND OBJECTIVES

Pain and functional limitations can severely impede older adults' quality of life. In Chinese residential care facilities, limited research suggests that residents potentially have significant unmet care needs with pain and related functional limitations. Therefore, we aimed to explore residents' challenges and self-management strategies in these two areas. This knowledge is essential to developing care interventions to improve quality of care and quality of life in Chinese residential care facilities.

RESEARCH DESIGN AND METHODS

We conducted semi-structured open-ended interviews with residents (n = 21) in two facilities in eastern and central China and assessed their pain and functional status using self-report measures from Minimum Data Set 3.0. We applied descriptive statistics to the self-reported data and analyzed the interview data using thematic analysis by drawing on the Adaptive Leadership Framework. This framework proposes that individuals living with chronic conditions need to engage in work to address their complex health concerns and that they need support from the environment to facilitate problem-solving.

RESULTS

Residents described significant unmet care needs with pain and functional limitations. To address these care needs, they adopted a substantial number of self-management strategies. While doing so, they faced significant barriers, including service gaps and inadequate direct care.

DISCUSSION AND IMPLICATIONS

The findings suggest further research to explore long-term care policy change that is needed to provide comprehensive health and medical services and adequate direct care in these facilities. The importance of establishing various types of long-term care facilities is also highlighted.

Persistent, Consistent, and Extensive: The Trend of Increasing Pain Prevalence in Older Americans

OBJECTIVES

Assess trends in pain prevalence from 1992 to 2014 among older U.S. adults and by major population subgroups, and test whether the trends can be explained by changes in population composition.

METHODS

Health and Retirement Study data include information on any pain, pain intensity, and limitations in usual activities due to pain. Average annual percent change in prevalence is calculated for any and for 2 levels of pain-mild/moderate and nonlimiting and severe and/or limiting-across demographic and socioeconomic characteristics, and for those with and without specific chronic conditions. Generalized linear latent and mixed models examine trends adjusting for covariates.

RESULTS

Linear and extensive increases in pain prevalence occurred across the total population and subgroups. The average annual percent increase was in the 2%-3% range depending upon age and sex. Increases were consistent across subgroups, persistent over time, and not due to changes in population composition. Without increases in educational attainment over time, pain prevalence increases would be even higher.

DISCUSSION

The increases in pain prevalence among older Americans are alarming and potentially of epidemic proportions. Population-health research must monitor and understand these worrisome trends.

Marital Quality, Loneliness, and Depressive Symptoms Later in Life: The Moderating Role of Own and Spousal Functional Limitations

Loneliness is a mechanism through which marital quality relates to older adults' mental health. Links between marital quality, loneliness, and depressive symptoms, however, are often examined independent of older adults' functional health. The current study therefore examines whether associations between marital quality, loneliness, and depressive symptoms are contextually dependent on individuals' own (or their spouse's) functional limitations, as well as on gender. Data came from couples (N = 1084) who participated in the Health and Retirement Study (HRS), a nationally representative dataset of older adults (age 50+). We utilized data from the 2014 leave-behind psychosocial questionnaire to measure spousal support/strain and loneliness, and interview data from 2014 to measure baseline depressive symptoms and demographic covariates (e.g., race and education). Depressive symptoms in 2016 served as the focal outcome variable. Findings from a series of path models estimated in MPLUS indicated that loneliness is a mechanism through which spousal support predicts older adults' depressive symptoms. Such linkages, however, were dependent on individuals' own functional limitations and gender. For functionally limited males in particular, spousal support was shown to reduce depressive symptoms insofar as it was associated with lower levels of loneliness; otherwise, it was associated with higher levels of depressive symptoms. Such findings reinforce the importance of taking a contextualized approach when examining associations between support and emotional well-being later in life.

Trends in Prescription Analgesic Use Among Adults With Musculoskeletal Conditions in the United States, 1999-2016

IMPORTANCE

Monitoring trends in prescription analgesic use among adults with musculoskeletal conditions provides insight into how changing prescribing practices, guidelines, and policy measures may affect those who need pain management.

OBJECTIVE

To evaluate trends in prescription opioid use and nonopioid analgesic use among adults with functional limitations attributable to musculoskeletal conditions.

DESIGN, SETTING, AND PARTICIPANTS

This repeated cross-sectional study uses data from the National Health and Nutrition Examination Study from 1999 to 2016. Data were analyzed from January to July 2019. The participants were adults aged 30 to 79 years who reported functional limitations due to back or neck problems and/or arthritis or rheumatism.

MAIN OUTCOMES AND MEASURES

Any use of a prescription opioid or exclusive use of a prescription nonopioid analgesic.

RESULTS

In this population of 7256 adults with 1 or more functional limitations attributable to a musculoskeletal condition (4226 women [59.9%]; 3508 [74.4%] non-Hispanic white individuals; median [interquartile range] age, 63 [53-70] years), opioid use and exclusive nonopioid analgesic use exhibited approximately reciprocal patterns of change from 1999 to 2016. Opioid use increased significantly (difference in prevalence for 2015-2016 vs 1999-2000, 7.2%; 95% CI, 1.3% to 13%; P for trend = .002), and exclusive use of nonopioid analgesics decreased significantly (difference in prevalence for 2015-2016 vs 1999-2000, -13%; 95% CI, -19% to -7.5%; P for trend < .001) during this period. The increase in any opioid use was driven by long-term rather than short-term use. A crossover in the prevalence of opioid use and exclusive use of nonopioid analgesics occurred between 2003 and 2006, after which opioid use was more prevalent. Between 2013 and 2016, decreases in opioid use were observed among men (difference in prevalence for 2015-2016 vs 2013-2014, -11%; 95% CI, -21% to 1.8%) and participants with less than a high school education (difference, -15%; 95% CI, -24% to -6.1%). During this same period, exclusive nonopioid analgesic use also decreased markedly across the population (difference, -5.3%; 95% CI, -9.1% to -1.5%).

CONCLUSIONS AND RELEVANCE

The substitution of opioids for nonopioid analgesics between 2003 and 2006 may have occurred as evidence emerged on the cardiovascular risks associated with nonopioid analgesics. Reductions in opioid use between 2013 and 2016 were most substantial among those with low socioeconomic status, who may encounter barriers in accessing alternatives. Despite those decreases, opioid use remained more prevalent in 2015 to 2016 than in 1999 to 2000, suggesting a potentially long tail for the opioid epidemic.

Pain over the adult life course: 15-year pain trajectories-The Doetinchem Cohort Study

BACKGROUND

Pain at any age is related to pain experienced at younger ages, but not much is known on how pain develops over the adult life course. We studied long-term individual trajectories of pain over 15 years of the life course and evaluated the role of baseline sociodemographic factors, lifestyle factors and health characteristics.

METHODS

Longitudinal data from the Doetinchem Cohort Study was used with 3,485 adults aged 25-71 years at baseline who were measured every 5 years, until the age of 40-86 years. Four measurements of self-reported pain were used to distinguish 15-year trajectories of pain, that were summarized in five pre-definedpatterns.

RESULTS

The typical pain trajectory patterns were (prevalence): never pain (32.2%), persistent pain (19.5%), development of pain (19.2%), diminishing pain (11.1%) and fluctuating pain (18.0%). Multinomial logistic regression analyses showed that the trajectory characterized by never pain was more often found among: men, non-smokers, those reporting a normal sleep duration and those without obesity, chronic disease, a poor mental health, a poor perceived health, or musculoskeletal complaints.

CONCLUSIONS

A substantial part of the population reports pain over a long period of their life course and long-term trajectories of pain may reflect phenotypes that may be relevant to take into account in pain management. Several risk factors, such as short-sleep duration, smoking, obesity and poor perceived or mental health may be relevant in recognizing those with pain, and tackling these may contribute to the prevention of pain over the life course.

SIGNIFICANCE

Asking adults about pain every 5 years over a 15-year period shows that almost one-third never reported pain and one-fifth persistent pain. "Persistent" and "developing" pain is associated with smoking, obesity and short sleep duration. Long-term pain trajectories may reflect relevant pain phenotypes.

Development of pain in older adults: a latent class analysis of biopsychosocial risk factors

Pain significantly restricts the quality of life and well-being of older adults. With our increasingly ageing population, it is important to examine whether differing classes of biopsychosocial risk factors can predict the development of pain in older adults. Latent class analysis provides a model-based approach to identifying underlying subgroups in a population, based on some measured characteristics. In this study, latent class analysis was used to identify biopsychosocial risk classes in people aged 50 years and older, from The Irish Longitudinal Study on Ageing, who reported not often being troubled by pain at wave 1 and completed the 2-year follow-up at wave 2 (n = 4458). Four classes were identified based on 11 potential risk factors at wave 1. These classes were characterised as "Low Risk," "Physical Health Risk," "Mental Health Risk," and "High Risk." The Low-Risk class accounted for over half the sample (51.2%), whereas the High-Risk class represented 7.8% of the sample. At follow-up (wave 2), 797 (17.9%) participants reported being troubled by pain. Associations between the biopsychosocial risk classes and developing pain were examined using logistic regression, adjusting for sociodemographic variables. The High-Risk class was more likely to develop pain compared with the Low-Risk class (adjusted OR = 3.16, 95% CI = 2.40-4.16). These results add to existing data in other populations supporting the role of a range of biopsychosocial risk factors that increase the risk of developing pain. These findings have important implications for the identification, and potential moderation, of these risk factors.

Residential care in Los Angeles: Evaluating the spatial distribution of facilities and neighbourhood access to care among older adults

Residential care has increased in number of facilities and has grown in density in urban areas, yet it is disproportionately dispersed in cities and only beginning to meet the current long-term care need of older adults as an alternative to institutional and in-home care. California State Department of Social Services residential care facility data were linked with Los Angeles County census tract data to examine the spatial distribution of facilities through hot spot analysis of small and large clusters of facilities and zero-inflated negative binomial regression of census tract facility counts on older age and race groups, older disabled adults, and older adults in poverty in the area. The results show clusters of large facilities west of downtown Los Angeles and clusters of small facilities in the northern suburbs of the city in the San Fernando Valley. Increases in pre- and early-retired adults and older Hispanics in census tracts are associated with the greatest decreases in facility tract capacity in the area, whereas increases in the oldest old and older disabled adults are associated with the greatest increases. Understanding spatial disparities in residential care can help local agencies and developers plan and partner in more intentional and equitable development of facilities. The greatest opportunity for such development may lie in institutional tools for eldercare facility development such as the eldercare facility ordinance of Los Angeles and development of board and care facilities in residential zones of Los Angeles and other cities.

Pain and health-related quality of life (HRQoL): a national observational study in community-dwelling older adults

PURPOSE

Regarding the epidemiology of pain in older adults, data are lacking about the association between pain severity and its impact on health-related quality of life (HRQoL). This study was aimed to investigate pain prevalence and sites, self-reported interferences with daily life activities, and the effect of pain severity on HRQoL in a Swiss community-dwelling population aged ≥ 65 years.

METHODS

This is a cross-sectional survey conducted with a national sample of individuals randomly selected from population records, stratified by age and gender. Respondents answered a face-face interview addressing pain location, intensity and interferences, and quality-of-life variables. Logit regression models were applied for binary outcomes, linear regression for continuous outcomes, and Poisson regression for count outcomes. For each analysis, Wald Chi square and 95% confidence intervals were used.

RESULTS

Among the 2995 individuals considered, 36.4% reported pain. The results indicate that pain prevalence and intensity increased from age 80 onwards. Pain intensity was strongly associated with functional health, i.e., all scales involving physical activities were affected in individuals reporting severe pain; it was also associated with the individuals' perception of their overall HRQoL.

CONCLUSION

Our results point to the importance of devoting attention to pain intensity rather than to the number of pain sites. Because of the demographic transition, the management of pain problems should emphasize early referral and timely treatment to prevent the burden of disease and functional loss associated with pain intensity.

Noninvasive brain stimulation over dorsolateral prefrontal cortex for pain perception and executive function in aging

OBJECTIVES

Based on the evidence that the dorsolateral prefrontal cortex (DLPFC) is the main region affected by the aging process, and that tDCS modulates cortical excitability, the aim of the study is to prove the feasibility of tDCS for pain perception and executive function of community-dwelling elderly individuals.

METHODS

We performed a double-blind, single-arm trial, including a sham period. 5 consecutive anodal tDCS was applied over DLPFC of twenty-four elderly for 20 min during each intervention periods (in order of Sham-1 mA-2 mA). First, we classified chronic non-inflammatory pain sites into three domain (Neck and upper extremity, low back, lower extremity). Then, we used visual analogue scale, pain self-efficacy scale, Tampa scale for kinesiophobia, and Global perceived Effect scale to observe the change in pain perception, as well as Trailing Making Test and Timed Up and Go (dual) to observe the change in executive function. The changes in maximal grip strength and 12-item Short Form survey were measured secondarily.

RESULTS

In the results, we observed significant improvement in pain perception and quality of life, while executive function and grip strength did not change significantly.

CONCLUSION

Our findings demonstrated the feasibility of tDCS for aging-related pain perception and suggest that further randomized controlled trials with longer duration are necessary to examine the effects on executive function.

Validity, Reliability and Responsiveness of the Korean Version of Quick Disabilities of the Arm, Shoulder, and Hand Questionnaire in Patients with Carpal Tunnel Syndrome

BACKGROUND

The Quick Disabilities of the Arm, Shoulder, and Hand questionnaire (QuickDASH) is one of the most widely used questionnaires for assessing functional ability of the patients with upper extremity diseases. Carpal tunnel syndrome (CTS) is the most common neuropathic disease in the upper extremities. The aim of this study was to verify the validity, reliability, and responsiveness of Korean version of QuickDASH questionnaire (K-QuickDASH) in the patients with CTS.

METHODS

In total, 83 subjects who underwent open carpal tunnel release (CTR) operation were selected. They fulfilled Korean version of Disabilities of the Arm, Shoulder and Hand questionnaire (K-DASH) and K-QuickDASH at two different time points: before and six months after the surgery. Both criterion-related and construct validities were evaluated using Pearson's correlation coefficient and factor analysis. Internal consistency was estimated using Cronbach's alpha, and test-retest reliability was assessed to verify the reliability of K-QuickDASH using intraclass correlation coefficient (ICC). The standardized response mean and the effect size were analyzed to confirm the responsiveness of the K-QuickDASH in CTS patients.

RESULTS

Significant positive correlation was found between K-QuickDASH and K-DASH. All the questionnaire items were categorized into three factors. Acceptable internal consistency was confirmed in three categories of K-QuickDASH. A high test-retest reliability and responsiveness of K-QuickDASH were detected.

CONCLUSION

K-QuickDASH in Korean patients with CTS was confirmed to have high degree of validity and reliability, and responsiveness after CTR. Therefore, the K-QuickDASH would be a good evaluation tool for evaluating clinical symptoms and determination of treatment outcomes in the patients with CTS.

[painApp-mobile pain monitoring in the home care setting]

BACKGROUND

The use of a scientifically developed App for pain management in the home care setting is not yet established in Germany. The documentation of pain-specific data by the patients and the transfer into a web portal to be examined by the attending physician can help close the existing communication gap in pain management between consultations.

OBJECTIVES

The aim of the study was to develop a mobile health (mHealth) solution for optimizing pain management in the home care setting. The research questions focus on design and technical issues concerning layout and navigation of the painApp as well as user-relevant questions concerning pain management, such as pain at rest and pain during movement, taking pain medication and patient satisfaction with their pain situation.

MATERIALS AND METHODS

Within a 12-month period, the user-centered development and practice-based testing of the application painApp involved patients aged ≥ 65 years. Within a formative evaluation, a total of four data collections and a final survey took place. During the same period, a web portal was developed and tested the documentation of the patient pain-specific data from the painApp with the participation of general practitioners.

RESULTS AND CONCLUSIONS

The development of the painApp as a prototype was realized in the study with high acceptability by the patients. The painApp is able to establish digital communication with the general practitioner without any technical problems and allows the physician access to patient data in real time.

Moderating effect of depression on the association between pain and activities of daily living in older adults

BACKGROUND

Maintaining older adults' ability to function independently in the community is a critically important public health concern. One of the most common symptoms threatening that ability is pain. Depression is a common co-occurring symptom in older adults with pain. In the present study, we determined the moderating effect of depression on the association between pain and functional limitations.

METHODS

Data were from the Healthy Aging Longitudinal Study in Taiwan, a population-based study of community-dwelling older adults in Taiwan (N = 2680). All data were collected by face-to-face interviews. Sociodemographic and health-related factors along with the location and severity of pain were collected. Functional limitation was assessed using the Barthel Index of Activities of Daily Living, whereas depression was assessed using the Center for Epidemiologic Studies Depression Scale.

RESULTS

Pain presence was not significantly associated with functional limitation, but overall pain severity and number of pain sites were. Depressive older adults exhibited a stronger association of pain and functional limitation.

CONCLUSION

Depression moderates the relation between pain and functional limitation. This knowledge may be valuable in developing effective public health and clinical management strategies to reduce functional limitation in older adults.

Chronic pain and geriatric syndromes in community-dwelling patients aged ≥65 years

Background

In growing elderly populations, there is a heavy burden of comorbidity and a high rate of geriatric syndromes (GS) including chronic pain.

Purpose

To assess the prevalence of chronic pain among individuals aged ≥65 years in the Southern District of Israel and to evaluate associations between chronic pain and other GS.

Methods

A telephone interview was conducted on a sample of older adults who live in the community. The interview included the Brief Pain Inventory and a questionnaire on common geriatric problems.

Results

Of 419 elderly individuals who agreed to be interviewed 232 (55.2%) suffered from chronic pain. Of those who reported chronic pain, 136 participants (68.6%) noted that they had very severe or unbearable pain. There were statistically significant associations between the pain itself and decline in patient’s functional status, increased falls, reduced mood, and cognitive decline.

Conclusion

The results of this study show that chronic pain is very common in older adults and that it is associated with other GS. There is a need to increase awareness of chronic pain in older adults and to emphasize the important role that it plays in their care.

Social class and infirmity. The role of social class over the life-course

In an aging society, it is important to promote the compression of poor health. To do so, we need to know more about how life-course trajectories influence late-life health and health inequalities. In this study, we used a life-course perspective to examine how health and health inequalities in late-midlife and in late-life are influenced by socioeconomic position at different stages of the life course. We used a representative sample of the Swedish population born between 1925 and 1934 derived from the Swedish Level of Living Survey (LNU) and the Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD) to investigate the impact of socioeconomic position during childhood (social class of origin) and of socioeconomic position in young adulthood (social class of entry) and late-midlife (social class of destination) on infirmity in late-midlife (age 60) and late-life (age 80). The results of structural equation modelling showed that poor social class of origin had no direct effect on late-midlife and late-life infirmity, but the overall indirect effect through chains of risks was significant. Thus, late-midlife and late-life health inequalities are the result of complex pathways through different social and material conditions that are unevenly distributed over the life course. Our findings suggest that policies that break the chain of disadvantage may help reduce health inequalities in late-midlife and in late-life.

A meta-ethnography of health-care professionals’ experience of treating adults with chronic non-malignant pain to improve the experience and quality of health care

Background

People with chronic pain do not always feel that they are being listened to or valued by health-care professionals (HCPs). We aimed to understand and improve this experience by finding out what HCPs feel about providing health care to people with chronic non-malignant pain. We did this by bringing together the published qualitative research.

Objectives

(1) To undertake a qualitative evidence synthesis (QES) to increase our understanding of what it is like for HCPs to provide health care to people with chronic non-malignant pain; (2) to make our findings easily available and accessible through a short film; and (3) to contribute to the development of methods for QESs.

Design

We used the methods of meta-ethnography, which involve identifying concepts and progressively abstracting these concepts into a line of argument.

Data sources

We searched five electronic bibliographic databases (MEDLINE, EMBASE, Cumulative Index to Nursing and Allied Health Literature, PsycINFO and Allied and Complementary Medicine Database) from inception to November 2016. We included studies that explored HCPs’ experiences of providing health care to people with chronic non-malignant pain. We utilised the Grading of Recommendations Assessment, Development and Evaluation Confidence in the Evidence from Reviews of Qualitative research (GRADE-CERQual) framework to rate our confidence in the findings.

Results

We screened 954 abstracts and 184 full texts and included 77 studies reporting the experiences of > 1551 HCPs. We identified six themes: (1) a sceptical cultural lens and the siren song of diagnosis; (2) navigating juxtaposed models of medicine; (3) navigating the patient–clinician borderland; (4) the challenge of dual advocacy; (5) personal costs; and (6) the craft of pain management. We produced a short film, ‘Struggling to support people to live a valued life with chronic pain’, which presents these themes (seeReport Supplementary Material 1; URL:www.journalslibrary.nihr.ac.uk/programmes/hsdr/1419807/#/documentation; accessed 24 July 2017). We rated our confidence in the review findings using the GRADE-CERQual domains. We developed a conceptual model to explain the complexity of providing health care to people with chronic non-malignant pain. The innovation of this model is to propose a series of tensions that are integral to the experience: a dualistic biomedical model compared with an embodied psychosocial model; professional distance compared with proximity; professional expertise compared with patient empowerment; the need to make concessions to maintain therapeutic relationships compared with the need for evidence-based utility; and patient advocacy compared with health-care system advocacy.

Limitations

There are no agreed methods for determining confidence in QESs.

Conclusions

We highlight areas that help us to understand why the experience of health care can be difficult for patients and HCPs. Importantly, HCPs can find it challenging if they are unable to find a diagnosis and at times this can make them feel sceptical. The findings suggest that HCPs find it difficult to balance their dual role of maintaining a good relationship with the patient and representing the health-care system. The ability to support patients to live a valued life with pain is described as a craft learnt through experience. Finally, like their patients, HCPs can experience a sense of loss because they cannot solve the problem of pain.

Future work

Future work to explore the usefulness of the conceptual model and film in clinical education would add value to this study. There is limited primary research that explores HCPs’ experiences with chronic non-malignant pain in diverse ethnic groups, in gender-specific contexts and in older people living in the community.

Funding

The National Institute for Health Research Health Services and Delivery Research programme.

Pain, Fear of Falling, and Functional Performance Among Nursing Home Residents: A Longitudinal Study

The aim of this study was to analyze the impact of being pain-affected and fear of falling on functional performance among nursing home residents, longitudinally. We used 6-month follow-up data from a cluster-randomized trial of 12 nursing homes (cluster level) with 239 nursing home residents at baseline (mean age, 95% confidence interval [CI] = 83.04 [81.40, 84.69], 70% women). The longitudinal analysis provided data on pain, fear of falling, functional mobility, and activities of daily living (individual level). The data revealed a trend indicating that pain-relieved nursing home residents showed better functional mobility over time. The results on fear of falling demonstrate obvious differences in the functional performance of nursing home residents cross-sectionally but not longitudinally. Nevertheless, the results underline the importance of an effective pain treatment to prevent decline in functional mobility among nursing home residents. Further longitudinal surveys are needed to verify the findings on functional performance.

Multidimensional Frailty and Pain in Community Dwelling Elderly

Objective

To examine the relationship between frailty and pain, particularly to analyze whether pain predicts physical, psychological and social frailty, after controlling for the effects of life-course determinants and comorbidity.

Design

Cross-sectional.

Methods

A nonprobabilistic sample of 252 community dwelling elderly was recruited. Frailty and determinants of frailty were assessed with the Tilburg Frailty Indicator and pain was measured with the Pain Impact Questionnaire. Hierarchical and logistic regression analyses were conducted.

Results

In this study, 52.4% of the participants were aged 80 years and over, and 75.8% were women. Pain and frailty were higher in women, and physical frailty was higher in those aged ≥80 years. After controlling for the effects of the determinants and comorbidity, pain predicted 5.8% of the variance of frailty, 5.9% of the variance of physical frailty, and 4.0% of the variance of psychological frailty, while the prediction of social frailty was nonsignificant. Overall, a greater pain impact score was associated with the presence of frailty (odds ratio 1.06; 95% CI 1.03–1.10; P < 0.001).

Conclusion

Frailty was independently predicted by pain, emphasizing the importance of its treatment, potentially contributing to the prevention of vulnerability, dependency, and mortality. Nonetheless, longitudinal studies are required to better understand the possible association between pain and frailty.

Racial and Socioeconomic Disparities in Disabling Chronic Pain: Findings From the Health and Retirement Study

The U.S. National Pain Strategy calls for increased population research on "high-impact chronic pain" (ie, longstanding pain that substantially limits participation in daily activities). Using data from the nationally-representative Health and Retirement Study (HRS), we investigated the prevalence of high-impact chronic pain in U.S. adults older than age 50 overall and within population subgroups. We also explored sociodemographic variation in pain-related disability within specific activity domains. Data are from a subsample of HRS respondents (n = 1,925) who were randomly selected for a supplementary pain module in 2010. Our outcome was operationalized as pain duration of ≥7 months and a disability rating of ≥7 (0-10 scale) in at least 1 domain: family/home, leisure, social activities, work, or basic activities. Overall, 8.2% (95% confidence interval = 6.7-10.1%) of adults older than age 50 met criteria for high-impact chronic pain. This proportion rose to 17.1% (95% confidence interval = 12.3-23.4%) among individuals in the lowest wealth quartile. Prevalence differences according to education, race/ethnicity, and age were not significant. Arthritis and depression were significantly associated with high-impact pain in multivariable analysis. Among adults with any chronic pain, African American and individuals in the lowest wealth quartile reported more pain-related disability across activity domains.

PERSPECTIVE

High-impact chronic pain is unequally distributed among midlife and older U.S. adults. Efforts to reduce the burden of disabling chronic pain should prioritize socioeconomically vulnerable groups, who may have the least access to multimodal pain treatment to improve function.

A qualitative evidence synthesis to explore healthcare professionals' experience of prescribing opioids to adults with chronic non-malignant pain

Background

Despite recent guidelines suggesting that patients with chronic non-malignant pain might not benefit, there has been a significant rise in opioid prescription for chronic non-malignant pain. This topic is important because an increasing number of HCPs are prescribing opioids despite very limited evidence for long-term opioid therapy for chronic non-malignant pain outside of end-of-life care. To better understand the challenges of providing effective treatment, we conducted the first qualitative evidence synthesis to explore healthcare professionals’ experience of treating people with chronic non-malignant pain. We report findings that explore healthcare professionals’ experience of prescribing opioids to this group of patients.

Methods

We searched five electronic bibliographic databases (Medline, Embase, CINAHL, PsychINFO, AMED) from inception to November 2015 and screened titles, abstracts and full texts of potential studies. We included studies in English that explored healthcare professionals’ experience of treating adults with chronic non-malignant pain. Two reviewers quality appraised each paper. We used the methods of meta-ethnography developed and refined for large reviews, and the GRADE-CERQual framework to rate confidence in review findings.

Results

We screened 954 abstracts and 184 full texts, and included 77 studies in the full review. 17 of these 77 studies included concepts that explored the experience of prescribing opioids. We abstracted these concepts into 6 overarching themes: (1) Should I, shouldn’t I? (2) Pain is Pain; (3) Walking a fine line; (4) Social guardianship; (5) Moral boundary work; (6) Regulations and guidelines. We used the GRADE-CERQual framework to evaluate confidence in findings. A new overarching concept of ‘ambiguity’ explains the balancing required around the factors taken into account when prescribing opioids. Managing this ambiguity is challenging and these findings can inform healthcare professionals dealing with these decisions.

Conclusions

This conceptual model demonstrates the complexity of making a decision to prescribe opioids to someone with chronic non-malignant pain. Although opioid prescription is underpinned by the therapeutic aim of alleviating pain, this aim may be misplaced. This has implications for education in light of the new regulations for opioid prescription. Findings also demonstrate that the decision is influenced by intra- and interpersonal factors and broader external concerns.

Profiling Arthritis Pain with a Decision Tree

BACKGROUND

Arthritis is the leading cause of work disability and contributes to lost productivity. Previous studies showed that various factors predict pain, but they were limited in sample size and scope from a data analytics perspective.

OBJECTIVES

The current study applied machine learning algorithms to identify predictors of pain associated with arthritis in a large national sample.

METHODS

Using data from the 2011 to 2012 Medical Expenditure Panel Survey, data mining was performed to develop algorithms to identify factors and patterns that contribute to risk of pain. The model incorporated over 200 variables within the algorithm development, including demographic data, medical claims, laboratory tests, patient-reported outcomes, and sociobehavioral characteristics.

RESULTS

The developed algorithms to predict pain utilize variables readily available in patient medical records. Using the machine learning classification algorithm J48 with 50-fold cross-validations, we found that the model can significantly distinguish those with and without pain (c-statistics = 0.9108). The F measure was 0.856, accuracy rate was 85.68%, sensitivity was 0.862, specificity was 0.852, and precision was 0.849.

CONCLUSION

Physical and mental function scores, the ability to climb stairs, and overall assessment of feeling were the most discriminative predictors from the 12 identified variables, predicting pain with 86% accuracy for individuals with arthritis. In this era of rapid expansion of big data application, the nature of healthcare research is moving from hypothesis-driven to data-driven solutions. The algorithms generated in this study offer new insights on individualized pain prediction, allowing the development of cost-effective care management programs for those experiencing arthritis pain.

Distinctive subgroups derived by cluster analysis based on pain and psychological symptoms in Swedish older adults with chronic pain - a population study (PainS65+)

Background

Improved knowledge based on clinical features of chronic pain in older adults would be valuable in terms of patient-orientated approaches and would provide support for health care systems in optimizing health care resources. This study identifies subgroups based on pain and psychological symptoms among Swedish older adults in the general population and compares derived subgroups with respect to socio-demographics, health aspects, and health care costs.

Methods

This cross-sectional study uses data collected from four registers and one survey. The total sample comprised 2415 individuals ≥65 years old. A two-step cluster analysis was performed. Data on pain intensity, number of pain sites, anxiety, depression, and pain catastrophizing were used as classification variables. Differences in socio-demographics, quality of life, general health, insomnia, and health care costs among the clusters were investigated. Association of the clusters with the above parameters was further evaluated using multinomial logistic regression.

Results

Four major clusters were identified: Subgroup 1 (n = 325; 15%) – moderate pain and high psychological symptoms; Subgroup 2 (n = 516; 22%) – high pain and moderate psychological symptoms; Subgroup 3 (n = 686; 30%) – low pain and moderate psychological symptoms; and Subgroup 4 (n = 767; 33%) – low pain and low psychological symptoms. Significant differences were found between the four clusters with regard to age, sex, educational level, family status, quality of life, general health, insomnia, and health care costs. The multinomial logistic regression analysis revealed that Subgroups 1 and 2, compared to Subgroup 4, were significantly associated with decreased quality of life, decreased general health, and increased insomnia. Subgroup 3, compared to Subgroup 4, was associated with decreased general health and increased insomnia. In addition, compared to Subgroup 4, Subgroups 1 and 2 were significantly associated with higher health care costs.

Conclusions

Two high risk clusters of older adults suffering from chronic pain; one mainly based on psychological symptoms and one mainly on pain intensity and pain spread, associated with decreased quality of life and health and increased health care costs were identified. Our findings indicate that subgroup-specific treatment will improve pain management and reduce health care costs.

Electronic supplementary material

The online version of this article (10.1186/s12877-017-0591-4) contains supplementary material, which is available to authorized users.

Restricting Back Pain and Subsequent Disability in Activities of Daily Living Among Community-Living Older Adults

OBJECTIVE

To evaluate the relationship between back pain severe enough to restrict activity (restricting back pain) and subsequent disability in essential (e) and instrumental (i) activities of daily living (ADL) among community-living older adults.

METHOD

In this prospective cohort study, we evaluated 754 adults, aged ≥70 years who were initially nondisabled in eADL. Restricting back pain and disability were assessed during monthly interviews for up to 159 months. Associations between restricting back pain and subsequent eADL and iADL disability were evaluated using recurrent events Cox models, adjusted for fixed-in-time and time-varying covariates.

RESULTS

Strong associations were found between restricting back pain and eADL and iADL disability, with hazard ratios (95% confidence intervals) of 3.47 [3.01, 3.90] and 2.33 [2.08, 2.61], respectively.

DISCUSSION

Restricting back pain was independently associated with subsequent disability in eADL and iADL. Interventions focused on decreasing restricting back pain in older adults may have the potential to reduce the subsequent burden of disability.

Successful Aging in the Context of the Disablement Process: Working and Volunteering as Moderators on the Association Between Chronic Conditions and Subsequent Functional Limitations

Objectives

This study evaluated the successful aging model by assessing the impact of two forms of productive engagement-working and volunteering-as potential interventions in the process of disablement.

Method

The Health and Retirement Study was used to (a) estimate two-stage selection equations of (i) currently working part time and full time and (ii) currently volunteering less than 100 hours and volunteering 100 hours or more per year (net of chronic health problems) and (b) assess whether, net of selection, working, and volunteering moderate the association between chronic conditions and subsequent functional limitations.

Results

Chronic conditions were associated with elevated levels of subsequent functional limitations, whereas both working and volunteering were associated with lower levels of subsequent functional limitations. Moreover, workers and volunteers of less than 100 hours per year experienced a reduction in the association of chronic conditions on subsequent functional limitations.

Discussion

This research highlights the role of productive engagement as a key element in successful aging. Not only do work and volunteering have direct associations with health outcomes themselves, but they also act as potential interventions in the process of disablement by attenuating the way in which chronic conditions are translated into subsequent functional limitations. This suggests that (a) future research should apply successful aging models to health processes as well as health outcomes and (b) policy makers should support social institutions that foster late-life productive engagement.

Impact of Pain on Incident Risk of Disability in Elderly Japanese: Cause-specific Analysis

BACKGROUND

Although several cross-sectional studies have reported that pain is associated with functional disability in the elderly, data regarding a longitudinal association between pain and disability are inconsistent. This study aimed to investigate the association of pain severity with subsequent functional disability due to all causes as well as stroke, dementia, and joint disease/fracture.

METHODS

The authors conducted a prospective cohort study of 13,702 Japanese individuals aged 65 yr or older. Information regarding pain severity during the previous 4 weeks and other lifestyle factors was collected via questionnaire in 2006. Data on the incidence of functional disability were retrieved from the Long-term Care Insurance database. Cox proportional hazards regression analysis was used to estimate the multivariate-adjusted hazard ratios for incident functional disability.

RESULTS

The authors documented 2,686 (19.6%) cases of incident functional disability. The multivariate hazard ratio of functional disability was 1.15 (95% CI, 1.02 to 1.31) among respondents with moderate pain and 1.31 (95% CI, 1.12 to 1.54) among respondents with severe pain in comparison with those without pain (P trend < 0.001). These positive associations were particularly remarkable for disability due to joint disease/fracture: the multivariate hazard ratio was 1.88 (95% CI, 1.37 to 2.58) for moderate pain and 2.76 (95% CI, 1.93 to 3.95) for severe pain (P trend < 0.001). There was a negative association between pain severity and disability due to dementia (P trend = 0.041) and no significant association between pain severity and disability due to stroke.

CONCLUSIONS

Among elderly Japanese individuals, the authors found a significant positive association between pain severity and future incident functional disability.

Chronic Pain and Psychological Distress Among Older Adults: A National Longitudinal Study

This research examines whether unobserved time-stable influences confound the association between chronic pain and psychological distress in older adults as well as how race and ethnicity combine with subjective social status (SSS) to modify the association. In a nationally representative longitudinal survey, holistically controlling for unobserved time-stable influences using fixed-effects models substantially reduces the pain-depression relationship and eliminates the overall pain-anxiety relationship. The association with depression is stronger for Black and Hispanic elders, illustrating a process of double-jeopardy. Black elders with severe pain experience lower anxiety, as do Black elders with moderate pain and low SSS, which we suggest may be due to the enervating effects of undermanaged pain. Black elders at high SSS experience greater anxiety with moderate pain. This research suggests that undermanagement of chronic pain among racial and ethnic minorities differentiates the association between pain and distress in late life and especially creates stronger associations with depression.

Multimorbidity: constellations of conditions across subgroups of midlife and older individuals, and related Medicare expenditures

INTRODUCTION

The Department of Health and Human Services' 2010 Strategic Framework on Multiple Chronic Conditions called for the identification of common constellations of conditions in older adults.

OBJECTIVES

To analyze patterns of conditions constituting multimorbidity (CCMM) and expenditures in a US representative sample of midlife and older adults (50-64 and ≥65 years of age, respectively).

DESIGN

A cross-sectional study of the 2010 Health and Retirement Study (HRS; n=17,912). The following measures were used: (1) count and combinations of CCMM, including (i) chronic conditions (hypertension, arthritis, heart disease, lung disease, stroke, diabetes, cancer, and psychiatric conditions), (ii) functional limitations (upper body limitations, lower body limitations, strength limitations, limitations in activities of daily living, and limitations in instrumental activities of daily living), and (iii) geriatric syndromes (cognitive impairment, depressive symptoms, incontinence, visual impairment, hearing impairment, severe pain, and dizziness); and (2) annualized 2011 Medicare expenditures for HRS participants who were Medicare fee-for-service beneficiaries (n=5,677). Medicaid beneficiaries were also identified based on their self-reported insurance status.

RESULTS

No large representations of participants within specific CCMM categories were observed; however, functional limitations and geriatric syndromes were prominently present with higher CCMM counts. Among fee-for-service Medicare beneficiaries aged 50-64 years, 26.7% of the participants presented with ≥10 CCMM, but incurred 48% of the expenditure. In those aged ≥65 years, these percentages were 16.9% and 34.4%, respectively.

CONCLUSION

Functional limitations and geriatric syndromes considerably add to the MM burden in midlife and older adults. This burden is much higher than previously reported.

Sociodemographic disparities in chronic pain, based on 12-year longitudinal data

Existing estimates of sociodemographic disparities in chronic pain in the United States are based on cross-sectional data, often treat pain as a binary construct, and rarely test for nonresponse or other types of bias. This study uses 7 biennial waves of national data from the Health and Retirement Study (1998-2010; n = 19,776) to describe long-term pain disparities among older (age 51+) American adults. It also investigates whether pain severity, reporting heterogeneity, survey nonresponse, and/or mortality selection might bias estimates of social disparities in pain. In the process, the article clarifies whether 2 unexpected patterns observed cross-sectionally-plateauing of pain above age 60, and lower pain among racial/ethnic minorities-are genuine or artefactual. Findings show high prevalence of chronic pain: 27.3% at baseline, increasing to 36.6% thereafter. Multivariate latent growth curve models reveal extremely large disparities in pain by sex, education, and wealth, which manifest primarily as differences in intercept. Net of these variables, there is no racial/ethnic minority disadvantage in pain scores, and indeed a black advantage vis-à-vis whites. Pain levels are predictive of subsequent death, even a decade in the future. No evidence of pain-related survey attrition is found, but surveys not accounting for pain severity and reporting heterogeneity are likely to underestimate socioeconomic disparities in pain. The lack of minority disadvantage (net of socioeconomic status) appears genuine. However, the age-related plateauing of pain observed cross-sectionally is not replicated longitudinally, and seems partially attributable to mortality selection, as well as to rising pain levels by birth cohort.

Understanding pain among older persons: Part 1-the development of novel pain profiles and their association with disability and quality of life

Background

While a range of variables are related to the impact of pain, most population studies of older persons have simply examined the presence or intensity of pain.

Objective

To develop novel pain profiles based on a range of pain variables, and compare demographic and health variables across profiles.

Methods

Baseline data from The Irish LongituDinal study on Ageing (TILDA), a population-representative cohort study involving 8,171 community living people resident in Ireland aged 50 or over, was used. Two-step cluster analysis was performed on those who reported being often troubled by pain using all self-reported pain variables. Nine demographic and health variables were compared across pain profiles and the no-pain profile.

Results

Of the cohort, 65% reported not often being troubled by pain. Of those troubled by pain, four profiles emerged ranging from the profile whose pain did not have impact on daily activities (12% of cohort) to the profile with everyone taking medication to control the pain (9% of cohort). All demographic and health variables differed significantly across the profiles (all P < 0.05) with pain profiles reporting significantly greater disability and poorer quality of life than the no-pain profile (P < 0.05).

Conclusions

Four pain profiles, based on a range of pain variables, as well as a no-pain profile were identifiable in a large sample of older adults. Identifying those (i) with multi-site pain, (ii) who take pain medications and/or (iii) whose pain affects daily activities clearly identifies those with the highest levels of disability and poorest quality of life.

Association of Pain With Physical Function, Depressive Symptoms, Fatigue, and Sleep Quality Among Veteran and non-Veteran Postmenopausal Women

PURPOSE OF STUDY

To characterize the prevalence and longitudinal effects of pain in older Veteran and non-Veteran women.

DESIGN AND METHODS

Data on 144,956 participants in the Women's Health Initiative were analyzed. At baseline, Veteran status, pain severity, and pain interference with activity were assessed. Outcomes of physical function, depressive symptoms, fatigue, and sleep quality were reported at baseline by all study participants and longitudinally on two follow-up occasions (3 years and 13-18 years after baseline) in the observational study participants (n = 87,336).

RESULTS

At baseline, a total of 3,687 (2.5%) had a history of military service and 22,813 (15.8%) reported that pain limited their activity level moderately to extremely during the past 4 weeks. Prevalence of pain interference did not differ in Veterans and non-Veterans (16.8% and 15.7%, respectively; p= .09). At baseline, women with moderate-to-extreme pain interference had substantially worse physical function and greater symptoms of depression, fatigue, and insomnia than those with less pain (p < .001 for all comparisons), adjusting for several social, behavioral, and health related factors. There were no significant military service by pain interference interactions for any of the outcomes (p > .2), indicating that the effect of pain interference on outcomes at baseline did not vary between Veterans and non-Veterans. Moderate-to-extreme pain interference was associated with a greater rate of decline in physical function over time (p < .001) and higher incidence of limited physical functioning (p < .001), but these effects did not vary by Veteran status. Similar results were observed with pain severity as the exposure variable.

IMPLICATIONS

As the Veteran population ages and the number of women exposed to combat operations grows, there will be an increased need for health care services that address not only pain severity and interference but also other disabling comorbid symptoms.

Pain management intervention targeting nursing staff and general practitioners: Pain intensity, consequences and clinical relevance for nursing home residents

AIM

Although chronic pain is common in older adults, its treatment is frequently inappropriate. This problem is particularly prevalent in nursing home residents. We therefore developed an intervention to optimize pain management and evaluated its effects on pain intensity and pain interference with function in nursing home residents in Germany.

METHODS

In a cluster-randomized controlled intervention, 195 residents of 12 Berlin nursing homes who were affected by pain were surveyed at three points of measurement. A modified German version of the Brief Pain Inventory was used to assess pain sites, pain intensity and pain interference with function in various domains of life. The intervention consisted of separate training measures for nursing staff and treating physicians.

RESULTS

The primary objective of reducing the mean pain intensity by 2 points was not achieved, partly because the mean pain intensity at baseline was relatively low. However, marginal reductions in pain were observed in the longitudinal assessment at 6-month follow up. The intervention and control groups differed significantly in the intensity sum score and in the domain of walking. Furthermore, the proportion of respondents with pain scores >0 on three pain intensity items decreased significantly.

CONCLUSIONS

Given the multifocal nature of the pain experienced by nursing home residents, improving the pain situation of this vulnerable group is a major challenge. To achieve meaningful effects not only in pain intensity, but especially in pain interference with function, training measures for nursing staff and physicians need to be intensified, and long-term implementation appears necessary. Geriatr Gerontol Int 2017; 17: 1534-1543.

Prevalence of different pain categories based on pain spreading on the bodies of older adults in Sweden: a descriptive-level and multilevel association with demographics, comorbidities, medications, and certain lifestyle factors (PainS65+)

Background and objective

There is limited knowledge about the prevalence of pain and its relation to comorbidities, medication, and certain lifestyle factors in older adults. To address this limitation, this cross-sectional study examined the spreading of pain on the body in a sample of 6611 subjects ≥65 years old (mean age = 75.0 years; standard deviation [SD] = 7.7) living in southeastern Sweden.

Methods

Sex, age, comorbidities, medication, nicotine, alcohol intake, and physical activity were analyzed in relation to the following pain categories: local pain (LP) (24.1%), regional pain medium (RP-Medium) (20.3%), regional pain heavy (RP-Heavy) (5.2%), and widespread pain (WSP) (1.7%).

Results

RP-Medium, RP-Heavy, and WSP were associated more strongly with women than with men (all p<0.01). RP-Heavy was less likely in the 80–84 and >85 age groups compared to the 65–69 age group (both p<0.01). Traumatic injuries, rheumatoid arthritis/osteoarthritis, and analgesics were associated with all pain categories (all p<0.001). An association with gastrointestinal disorders was found in LP, RP-Medium, and RP-Heavy (all p<0.01). Depressive disorders were associated with all pain categories, except for LP (all p<0.05). Disorders of the central nervous system were associated with both RP-Heavy and WSP (all p<0.05). Medication for peripheral vascular disorders was associated with RP-Medium (p<0.05), and hypnotics were associated with RP-Heavy (p<0.01).

Conclusion

More than 50% of older adults suffered from different pain spread categories. Women were more likely to experience greater spreading of pain than men. A noteworthy number of common comorbidities and medications were associated with increased likelihood of pain spread from LP to RP-Medium, RP-Heavy, and WSP. Effective management plans should consider these observed associations to improve functional deficiency and decrease spreading of pain-related disability in older adults.