Bradley M. Wood

Self-management intervention for chronic pain in older adults: a randomised controlled trial.

&NA; In the short term, combined CBT‐based pain self‐management and exercises are more effective than exercises and usual care in older adults with chronic pain. &NA; This study compared an outpatient pain self‐management (PSM) program, using cognitive‐behavioural therapy and exercises, with 2 control conditions in 141 chronic pain patients aged > 65 years. Results immediately posttreatment indicated that relative to the Exercise‐Attention Control (EAC) group, the PSM group was significantly improved on measures of pain distress, disability, mood, unhelpful pain beliefs, and functional reach. The mean effect size for these gains was 0.52 (range: 0.44–0.68). By 1‐month follow‐up, relative to the EAC group, the PSM group remained better on most measures. At the 1‐month follow‐up, relative to a Waiting List (usual care) (WL) group, the PSM group was significantly improved on measures of pain distress, disability, and unhelpful pain beliefs. The mean effect size for these variables was 0.69 (range: 0.56–0.83). Relative to the WL group, the EAC group made no significant gains on any of the measured variables. At 1‐month follow‐up, the mean proportion of reliably improved cases (across outcome variables) was 41% (range: 16–60%) for the PSM group, twice that of those who met this criterion in the 2 control conditions (and this difference was statistically significant). Similarly, significantly more (44%) of the PSM group (vs 22% and 20% for the control groups) achieved a clinically significant improvement on pain disability. In the short term at least, cognitive‐behavioural therapy‐based PSM was more effective than exercises and usual care.

Is adherence to pain self-management strategies associated with improved pain, depression and disability in those with disabling chronic pain?

There is generally good evidence that pain management interventions that include self‐management strategies can substantially reduce disability and improve psychological well‐being in patients with chronic pain. Reductions in unhelpful responses, especially catastrophising and fear‐avoidance beliefs, have been established as key contributors to these gains. In contrast, there is surprisingly little evidence that adherence to self‐management strategies contributes to achieving these outcomes. Difficulties in defining and measuring the use of pain self‐management strategies have been obstacles for this research. Using a pragmatic way of assessing the practice of specific strategies this study investigated their ability to account for changes in pain, disability and depressive symptoms after a 3‐week cognitive‐behavioural pain management program. The post‐treatment outcomes on these dimensions were found to be statistically and, for many, clinically significant. Consistent with previous research, reductions in catastrophising and fear‐avoidance beliefs, and increased pain self‐efficacy beliefs, were also associated with these gains. But the key new finding was that there was a clear gradient between adherence to specific self‐management strategies and reductions in pain, disability and depressive symptoms. Furthermore, adherence to the self‐management strategies was predictive of better outcomes even after controlling for the moderating effects of initial catastrophising, fear‐avoidance and pain self‐efficacy beliefs.

Assessing Pain in Older People With Persistent Pain: The NRS Is Valid But Only Provides Part of the Picture

UNLABELLED This study examined the assessment of pain intensity and pain distress with the Numerical Rating Scale (NRS) in elderly patients (age > 60 years) with persistent pain. A consecutive sample of 800 elderly patients were categorized by age into 3 groups: 61 to 70 years (n = 366), 71 to 80 years (n = 308), and 81 years and over (n = 126). Participants completed 3 Numerical Rating Scales assessing current pain intensity, and both the usual level of pain and average pain distress in the preceding week. The failure rate for scale completion was low for all scales for all age groups, but was significantly higher in the oldest group compared to the youngest group for the scales assessing current pain intensity and average pain distress in the preceding week. The NRS was shown to be a reliable and valid measure of pain intensity and pain distress in all these age groups. Distress related to pain appeared to be specific to the pain experience and was only weakly related to more generalized affective distress. These findings confirm that measures of pain intensity and pain distress, like the NRS, capture only part of the pain experience in older patients and should be supplemented by other measures in the assessment process. PERSPECTIVE This article confirms the utility of the Numerical Rating Scale (NRS) as a measure of pain intensity and pain distress in elderly patients with persistent pain. The use of a large sample increases confidence in the psychometric soundness of the NRS with this population.

The Utility of the Short Version of the Depression Anxiety Stress Scales (DASS‐21) in Elderly Patients with Persistent Pain: Does Age Make a Difference?

OBJECTIVE This study examined the assessment of the negative emotional constructs of depression, anxiety and stress with the short version (21 items) of the Depression Anxiety Stress Scales (DASS-21) in elderly patients (age > 60 years) with persistent pain. DESIGN A convenience sample of 2,045 patients attending a tertiary referral pain centre were categorized by age and included a group aged 60 years and under (n=1,245) for assessment of age differences. Elderly patients (n=800) were divided into 3 groups: 61-70 years (n=366), 71-80 years (n=308) and 81 years and over (n=126). Patients completed the DASS-21 as part of an initial clinical assessment process. RESULTS The failure rate for scale completion increased across age groups and was significantly higher in the oldest group compared to the youngest group. All scales demonstrated reasonable convergent and divergent validity. Confirmatory factor analysis confirmed a three-factor structure and is consistent with previous studies. Age differences in depression, anxiety and stress scores were also assessed. Interestingly, patients aged 60 years and under had significantly higher Depression and Stress scores compared to all other age groups. This group also had significantly higher Anxiety scores compared to patients aged 61-70 years. CONCLUSIONS Overall, the DASS-21 is a reliable and valid measure of depression, anxiety and stress in elderly patients with persistent pain. There are some age differences in the normative values for the reporting of mood symptoms and these need to be taken into account when assessing pain-related mood disturbance in older populations.

Catastrophizing Mediates the Relationship Between Pain Intensity and Depressed Mood in Older Adults With Persistent Pain

UNLABELLED This study examined the role of catastrophizing in mediating the relationship between pain intensity and depressed mood in older adults with persistent pain using reliable and valid measures for this population. A convenience sample of 669 patients 61 years and over attending a tertiary-level referral pain center completed questionnaires measuring pain intensity, depressed mood, and catastrophizing as part of a clinical assessment process. The catastrophizing subscale of the Pain-Related Self-Statements scale (PRSS-Catastrophizing) was examined for internal consistency and factor structure. Mediation was tested for each factor from the optimal model of the PRSS-Catastrophizing scale using regression analyses, which included measures of pain intensity and depressed mood. The PRSS-Catastrophizing scale was found to be a reliable measure of pain-related catastrophizing. A 2-factor solution (magnification, helplessness) was identified. Both factors partially and significantly mediated the relationship between pain intensity and depressed mood. This study highlights the importance of cognitive factors-in this case catastrophizing-in the persistent pain experience of older adults. It also demonstrates that pain-related catastrophizing can be reliably measured in this population. These findings have important clinical implications. They emphasize the importance of using interventions to reduce catastrophizing to modify the pain experience of older adults with persistent pain. PERSPECTIVE This study confirms the mediating role of catastrophizing in the relationship between pain intensity and depressed mood in older adults with persistent pain using psychometrically sound measures. These findings indicate that clinicians should address catastrophizing to improve treatment outcomes with this population.

Cognitive exposure versus avoidance in patients with chronic pain: Adherence matters

Behavioural exposure methods can reduce pain‐avoidance behaviours, but outcomes vary. One possible explanation is that patients employ cognitive (experiential) avoidance during behavioural exposure. If so, reducing cognitive avoidance during behavioural exposure should help. One option is interoceptive exposure (IE), which involves sustained exposure (via attention) to pain sensations. In order to test if IE could improve outcomes from behavioural exposure, this study with mixed chronic pain patients compared outcomes from a cognitive behavioural therapy (CBT) pain management programme incorporating either IE or distraction from pain.

The effectiveness of psychological treatments for chronic pain in older adults: cautious optimism and an agenda for research.

Purpose of review To explores the potential role of psychological treatments for older people who are affected by chronic pain. Recent findings It is now widely recognized that chronic pain is a highly prevalent health problem among older people, and guidelines have evolved to assist with the assessment and management of chronic pain. However, despite the fact that psychological treatments have been shown to be effective for a range of other conditions such as depression and anxiety, there is a relative paucity of studies focused on pain management. Although more evidence is needed, the trend from existing studies indicates that older people find psychological treatments for chronic pain to be relevant, acceptable in content, and beneficial in reducing distress and disability. Particular challenges arise for the delivery of psychological interventions to people with pain and cognitive impairment associated with dementia. There is a growing interest in this population and a good deal of research has focused on the assessment of pain, but with a small number of exceptions, almost no research activity as yet in developing psychological treatments for people with pain and dementia. Summary We conclude that there is sufficient evidence that psychological interventions are efficacious for older people with chronic pain. We propose a number of areas for research focus over the next 10 years that will help to consolidate our knowledge and to explore new avenues for the psychological management of chronic pain in older people.

Long-term outcomes from training in self-management of chronic pain in an elderly population: A randomised controlled trial

Abstract This study compares the outcomes, from pretreatment to 1-year follow-up, of an outpatient, CBT-based pain self-management program (PSM) that included exercises, pain education, and pain coping strategies, with a control condition (exercise-attention control, EAC) that included exercises and a control for the attention of the treatment team. We previously reported short-term results (to 1-month follow-up) from the same study. This new paper considers the important issue of maintenance of treatment-related gains. The participants (n = 141) were a heterogeneous sample of ambulant, community-dwelling older adult patients with chronic pain (mean age: 73.90 [6.5] years [range: 65-87 years]). The long-term results indicate the pain self-management program group achieved and maintained significantly better results than the exercise-attention control group on the primary outcome, pain-related disability, as well as on usual pain, pain distress, depression, and fear-avoidance beliefs. The mean effect size for these gains by the pain self-management program group over the exercise-attention control group was 0.37 (range: 0.29-0.45), which is in the small effect size range. While statistically and clinically meaningful, these findings do indicate some weakening in effects over time but not to a significant degree. The study has implications for the provision of pain management interventions for community-dwelling older adults with chronic pain.

The mediating role of catastrophizing in the relationship between pain intensity and depressed mood in older adults with persistent pain: A longitudinal analysis

Abstract Background and aims Depression is common in older adults with persistent pain. Cognitive-behavioural models of pain propose that the relationship between pain and depression is influenced or mediated by interpretations of events (cognitions), rather than by the event itself. Almost exclusively, the evidence for this position has come from studies of people aged less than 65 years. The role of cognitions in the pain experience of older adults has been unclear due to the limited and conflicting evidence available. The aim of our study was to examine the role of catastrophizing in mediating the relationship between pain intensity and depressed mood in older adults with persistent pain using reliable and valid measures for this population. Methods In a two-wave longitudinal design, a sample of 141 patients (89 women, 52 men) 65 years and over with persistent pain participating in an evaluation of a pain self-management programme completed questionnaires measuring usual level of pain intensity (NRS), depressed mood (DASS-21) and the catastrophizing factors of magnification and helplessness (PRSS) at the beginning of the programme and 6 months later. Demographic data and pain history were collected by self-completion questionnaires, which were mailed to patients prior to participating in the programme and returned by post. Results Change scores for usual level of pain intensity (NRS), depressed mood (DASS-21) and the magnification and helplessness factors on the PRSS-Catastrophizing were calculated by subtracting the scores at 6 months after completion of the study (Time 2) from the scores at the beginning of the study (Time 1). In the longitudinal analyses of mediation, using a series of regression analyses, change scores for both factors (magnification, helplessness) of the measure of catastrophizing (PRSS) totally and significantly mediated the relationship between change scores for pain intensity and depressed mood. The significant relative magnitude of beta between pain intensity and depression reduced from 0.22 to 0.13 and became non-significant after introducing magnification as a mediating variable, whilst the significant relative magnitude of beta reduced from 0.22 to 0.12 and also became non-significant after introducing helplessness as a mediating variable. Conclusions These results support a cognitive-behavioural model and highlight the importance of cognitive factors, in this case catastrophizing, in the relationship between pain intensity and depressed mood in older adults with persistent pain. Implications These findings also have important clinical implications for the treatment of older adults with persistent pain. They highlight the importance of targeting interventions to reduce the influence of catastrophizing as a prerequisite for reducing depressive symptoms in this growing population.

The Non-Avoidant Pacing Scale: Development and preliminary validation

Despite widespread use as a chronic pain management strategy, pacing has been linked with higher levels of pain and disability. A recent meta-analysis found a positive correlation between existing measures of pacing and avoidance, which may partially account for these poorer outcomes. A measure was developed to differentiate pacing from avoidance by emphasizing non-pain-contingent pacing behaviors and nonavoidance of pain. A sample of 283 adults with chronic pain completed the Non-Avoidant Pacing Scale (NAPS) and existing measures of pacing, avoidance, pain, and physical and psychological functioning. Exploratory factor analysis of 10 items (subsample 1, n = 141) suggested two 4-item factors: planned pacing behaviors and pacing through flare ups. Confirmatory factor analysis of 8 items (subsample 2, n = 142) revealed satisfactory fit (goodness-of-fit index .947, comparative fit index .964). The pattern of correlations between each factor and avoidance and key outcomes suggests that the NAPS total scale (ɑ = .819) captures key pacing behaviors and differentiates pacing from avoidance. Unlike existing measures, the NAPS was not positively correlated with avoidance and was associated with better psychological functioning across affective and cognitive domains. The NAPS allows researchers and clinicians to assess the role of pacing in chronic pain management without artefactual overlap with avoidance. PERSPECTIVE: The NAPS assesses activity pacing in chronic pain without artefactual overlap with avoidance. Associations were found between more frequent pacing, as measured by the NAPS, and better psychological functioning. Clearly differentiating pacing from avoidance allows for accurate assessment of the role of pacing in chronic pain management.