| 1. |
- Andersson, H. Ingemar, 1950-, et al.
(författare)
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Chronic pain in a geographically defined general population : studies of differences in age, gender, social class, and pain localization.
- 1993
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Ingår i: The Clinical Journal of Pain. - 0749-8047 .- 1536-5409. ; 9:3, s. 174-182
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To establish basic epidemiological data on chronic pain (duration > 3 months) in a defined population. Relationships between age, gender, and social class were tested. DESIGN: A survey of pain symptoms, including location, intensity, duration, and functional capacity, was conducted by means of a mail questionnaire. SETTING: General populations in two Swedish primary health care districts. Medical care was provided in a state health system. SUBJECTS: A random sample (from the population register) of 15% of the population aged 25-74 (n = 1,806). The response rate was 90%. OUTCOME MEASURES: Descriptive epidemiologic data in relation to objectives of the study. RESULTS: Without sex differences, 55% (95% confidence interval, 53-58%) of the population had perceived persistent pain for 3 months and 49% for 6 months. Among individuals with chronic pain, 90% localized their pain to the musculoskeletal system to a variable extent. Women experienced more multiple localizations of pain and had pain in the neck, shoulder, arm, and thigh to a greater extent than men. Prevalence of pain increased by age up to 50-59 years for both genders and then slowly decreased. The neck-shoulder area was the most common site of pain (30.2%), followed by the lower back (23.2%). Even in the youngest age groups more than one of four reported chronic pain. Blue-collar workers and employers (including farmers) reported chronic pain to a greater extent than other groups. In 13% of the population, manifest pain problems were associated with reduced functional capacity. CONCLUSION: Chronic pain symptoms are common but unevenly distributed in a general population. The results may influence planning and consultation in primary health care as well as warranting selective prevention activities.
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| 2. |
- Baad-Hansen, Lene, et al.
(författare)
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Somatosensory sensitivity in patients with persistent idiopathic orofacial pain is associated with pain relief from hypnosis and relaxation
- 2013
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Ingår i: The Clinical Journal of Pain. - : Lippincott Williams & Wilkins. - 0749-8047 .- 1536-5409. ; 29:6, s. 518-526
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: In a recent study hypnosis has been found to relieve persistent idiopathic orofacial pain. Quantitative sensory testing (QST) is widely used to evaluate somatosensory sensitivity, which has been suggested as a possible predictor of management outcome. The objectives of this study were to examine: (1) possible associations between clinical pain relief and baseline somatosensory sensitivity and (2) the effect of hypnosis management on QST parameters. METHODS: Forty-one patients with persistent idiopathic orofacial pain completed this randomized controlled study in 1 of 2 groups: hypnosis (hypnotic analgesia suggestions) or control (relaxation). QST at 2 intraoral (pain region and contralateral mirror image region) and 3 extraoral (hand and both cheeks) sites was performed at baseline and after the hypnosis/control management, together with pressure pain thresholds and pressure pain tolerance thresholds determined bilaterally at the masseter and temporalis muscles, the temporomandibular joints, and the third finger. RESULTS: Degree of pain relief was negatively correlated with a summary statistic of baseline somatosensory sensitivity (summed z-score), that is, high baseline somatosensory sensitivity was associated with low pain relief (r=-0.372, P=0.020). Hypnosis had no major effect on any QST measure compared with relaxation (P>0.063). CONCLUSIONS: High pain sensitivity at baseline may predict poor pain management outcome. In addition, despite clear clinical pain relief, hypnosis did not significantly or specifically influence somatosensory sensitivity. Future studies should further explore QST measures as possible predictors of different management response in orofacial pain conditions.
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| 3. |
- Biurrun Manresa, Jose A., et al.
(författare)
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Dynamic Changes in Nociception and Pain Perception After Spinal Cord Stimulation in Chronic Neuropathic Pain Patients
- 2015
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Ingår i: The Clinical Journal of Pain. - : LIPPINCOTT WILLIAMS and WILKINS. - 0749-8047 .- 1536-5409. ; 31:12, s. 1046-1053
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Patients with an implanted spinal cord stimulation (SCS) system for pain management present an opportunity to study dynamic changes in the pain system in a situation where patients are not stimulated (ie, experiencing severe pain) compared with a situation in which patients have just been stimulated (ie, pain free or greatly reduced pain). The aims of this study were (1) to determine if there are differences in nociceptive withdrawal reflex thresholds (NWR-T) and electrical pain thresholds (EP-T) before and after SCS; and (2) to establish if these differences are related to psychological factors associated with chronic pain. Methods: Seventeen volunteers with chronic neuropathic pain participated in the experiment. Electrical stimuli were applied to assess the NWR-T and the EP-T. In addition, psychological factors (ie, pain characteristics, depression, anxiety, and disability indexes) were also recorded. The NWR-T and EP-T were assessed with the SCS system off (at least 8 h before the experiment), and then reassessed 1 hour after the SCS system was turned on. Results: Ongoing pain intensity ratings decreased (P=0.018), whereas the NWR-T increased (P=0.028) after the SCS was turned on, whereas no significant difference was found for EP-T (P=0.324). Psychological factors were significant predictors for EP-T but not for NWR-T. Discussion: The results of this study suggest that pain relief after SCS is partially mediated by a decrease in the excitability of dorsal horn neurons in the spinal cord.
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| 4. |
- Boersma, Katja, et al.
(författare)
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Psychological processes underlying the development of a chronic pain problem : a prospective study of the relationship between profiles of psychological variables in the fear-avoidance model and disability
- 2006
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Ingår i: The Clinical Journal of Pain. - : Lippincott Williams & Wilkins. - 0749-8047 .- 1536-5409. ; 22:2, s. 160-166
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Understanding the psychological processes that underlie the development of a chronic pain problem is important to improve prevention and treatment. The aim of this study was to test whether distinct profiles of variables within the fear-avoidance model could be identified and could be related to disability in a meaningful way.Methods: In 81 persons with a musculoskeletal pain problem, cluster analysis was used to identify subgroups with similar patterns on fear and avoidance beliefs, catastrophizing, and depression. The clusters were examined cross-sectionally and prospectively on function, pain, health care usage, and sick leave.Results: Five distinct profiles were found: pain-related fear, pain-related fear + depressed mood, medium pain-related fear, depressed mood, and low risk. These subgroups were clearly related to outcome. In contrast to the clusters medium pain-related fear and low risk, the majority of those classified in the clusters pain-related fear, pain-related fear + depressed mood, and depressed mood reported long-term sick leave during follow-up. The subjects in the clusters with high scores on the depression measure reported the highest percentage of health care usage during follow-up (70% in the pain-related fear + depressed mood group and 42% in the depressed mood group reported >10 health care visits).Conclusions: Distinct profiles of psychological functioning could be extracted and meaningfully related to future disability. These profiles give support to the fear-avoidance model and underscore the need to address the psychological aspects of the pain experience early on.
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| 5. |
- Boersma, Katja, et al.
(författare)
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Screening to identify patients at risk : profiles of psychological risk factors for early intervention
- 2005
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Ingår i: The Clinical Journal of Pain. - : Ovid Technologies (Wolters Kluwer Health). - 0749-8047 .- 1536-5409. ; 21:1, s. 38-43
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Tidskriftsartikel (refereegranskat)abstract
- There is a serious need to provide effective early interventions that prevent the development of persistent pain and disability. Identifying patients at risk for this development is an important step. Our aim was to explore whether distinct subgroups of individuals with similar response patterns on a screening questionnaire exist. Moreover, the objective was to then relate these groups to future outcomes, for example, sick leave as an impetus for developing tailored interventions that might better prevent chronic problems. A total of 363 patients seeking primary care for acute or subacute spinal pain completed the Orebro Musculoskeletal Pain Screening Questionnaire and were then followed to determine outcome. Cluster analysis was used to identify subgroups. Validity was tested using 3 methods including the split-half technique. The subgroups were compared prospectively on outcome measures obtained 1 year later. Using pain intensity, fear-avoidance beliefs, function, and mood, we found 4 distinct profiles: Fear-Avoidant, Distressed Fear-Avoidant, Low Risk, and Low Risk-Depressed Mood. These 4 subgroups were also robust in all 3 of the validity procedures. The 4 subgroups were clearly related to outcome. Although the low risk profiles had virtually no one developing long-term sick leave, the Fear-Avoidant profile had 35% and the Distressed Fear-Avoidant profile 62% developing long-term sick leave. Our results suggest that fear-avoidance and distress are important factors in the development of pain-related disability and may serve as a key for early identification. Providing interventions specific to the factors isolated in the profiles should enhance the prevention of persistent pain and disability.
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| 6. |
- Brattberg, Gunilla, et al.
(författare)
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A longitudinal study of pain : reported pain from middle age to old age.
- 1997
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Ingår i: The Clinical Journal of Pain. - : Ovid Technologies (Wolters Kluwer Health). - 0749-8047 .- 1536-5409. ; 13:2, s. 144-149
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE Describe patterns of pain reporting over a span of 24 years. DESIGN Individuals were interviewed on four occasions (1968, 1974, 1981, 1992). PARTICIPANTS Representative sample (n = 321) of the Swedish population aged 53-63 at baseline. MEASURES Self-reported pain in the chest, abdomen, and musculoskeletal system (back or hips, shoulders, hands, elbows, legs, or knees). RESULTS Less than 1% reported chest or abdominal pain on all four occasions. Whereas 21.8% of the sample reported musculoskeletal pain on all four occasions. More than half of the sample reported some kind of pain on three or four occasions. Women reported more severe and more persistent pain compared with men. There were more people who developed pain during the 24-year period than there were who became pain free. An increase in pain was equally common for chest and musculoskeletal pain, but a decrease in pain was much more common for musculoskeletal pain than chest pain. CONCLUSIONS Cross-sectional studies have shown differing age patterns in pain. This longitudinal study demonstrates different patterns for men and women and for different pain localities.
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| 7. |
- Buhrman, Monica, et al.
(författare)
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Individualized Guided Internet-delivered Cognitive Behaviour Therapy for Chronic Pain Patients with Comorbid Depression and Anxiety : A Randomized Controlled Trial
- 2015
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Ingår i: The Clinical Journal of Pain. - : Lippincott, Williams and Wilkins. - 0749-8047 .- 1536-5409. ; 31:6, s. 504-516
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Tidskriftsartikel (refereegranskat)abstract
- Depression and anxiety are commonly seen in patients with chronic pain which affects the patient´s daily life functioning. Although considerable attention has been devoted to explain why depression and anxiety are frequent comorbid with chronic pain, little empirical work has been conducted on interventions that target depression and anxiety and chronic pain. The present study was designed to test an individualized cognitive-behavioral treatment delivered through the internet for persons with chronic pain and emotional distress. A total of 52 patients with chronic pain and depression were included and randomized to either treatment for 8 weeks or to a control group that participated in a moderated online discussion forum. Intent-to-treat analyses showed significant decreases regarding depressive symptoms and pain disability in the treatment group. Results on the primary outcomes of depression and anxiety were in favour of the treatment group. Reductions were also found on pain catastrophizing. One year follow-up showed maintenance of improvements. We conclude that an individualized guided internet-delivered treatment based on cognitive behaviour therapy can be effective for persons with chronic pain comorbid emotional distress.
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| 8. |
- Buhrman, Monica, et al.
(författare)
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Psychological treatment targeting acceptance and compassion in chronic pain patients : a randomized controlled, internet delivered, treatment trial
- 2023
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Ingår i: The Clinical Journal of Pain. - : Lippincott Williams & Wilkins. - 0749-8047 .- 1536-5409. ; 39:12, s. 672-685
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Objectives: Chronic pain is often associated with suffering. Self-criticism is associated with depressive symptoms. The purpose of this study was to explore if fusing acceptance and commitment therapy (ACT) and compassion focused therapy (CFT), could improve psychological wellbeing and disability in chronic pain patients with high levels of self-criticism in comparison to a wait-list control group. Methods: Individuals with chronic pain (n=71) were randomly assigned to an 8-week internet-based intervention focused on acceptance and compassion or a wait-list condition. Primary treatments outcomes were Chronic Pain Acceptance Questionnaire, Self-Compassion Scale, and Pain Disability index. Secondary outcomes were Montgomery Åsberg Depression Rating Scale, Anxiety sensitivity index, Quality of Life Inventor, Multidimensional Pain Inventory and Perseverative Thinking Questionnaire. Results: Missing data at post-intervention was 22.5%. ITT-analyses were conducted using linear mixed-models. Results revealed significantly greater levels of acceptance and self-compassion for the treatment group, which were primary outcomes, with effect sizes ranging from small to large and these results were maintained at six-month follow-up. Rates of clinical significant improvements were also greater for the treatment group in comparison to the wait-list control group on acceptance and compassion. Results in the third primary outcome showed also improvements in disability levels. Significant differences were also found in several of the secondary outcomes, in favour for the treatment group.Discussion: Internet-based ACT with CFT components shows promise as a viable treatment option in the management of chronic pain.
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| 9. |
- Buhrman, Monica, et al.
(författare)
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Psychological Treatment Targeting Acceptance and Compassion in Patients With Chronic Pain : A Randomized Controlled, Internet-delivered, Treatment Trial
- 2023
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Ingår i: The Clinical Journal of Pain. - : Wolters Kluwer Health, Inc.. - 0749-8047 .- 1536-5409. ; 39:12, s. 672-685
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Chronic pain is often associated with lower function. Self-criticism is associated with depressive symptoms. The purpose of this study was to explore if fusing Acceptance and Commitment Therapy and compassion-focused therapy could improve psychological well-being and disability in individuals with chronic pain with high levels of self-criticism in comparison to a wait-list control group. METHODS: Individuals with chronic pain (n=71) were randomly assigned to an 8-week internet-based intervention focused on acceptance and compassion or a wait-list condition. Primary treatment outcomes were the Chronic Pain Acceptance Questionnaire, Self-Compassion Scale, and Pain Disability Index. Secondary outcomes were the Montgomery Åsberg Depression Rating Scale, Anxiety Sensitivity Index, Quality of Life Inventory, Multidimensional Pain Inventory, and Perseverative Thinking Questionnaire. RESULTS: Missing data at postintervention were 22.5%. Intention-to-treat analyses were conducted using linear mixed models. The results revealed greater levels of acceptance and self-compassion for the treatment group, which were primary outcomes, with effect sizes ranging from small to large, and these results were maintained at 6-month follow-up. The rates of clinically significant improvements were also greater for the treatment group in comparison to the wait-list control group on acceptance and compassion. The treatment group also improved in the third primary outcome, pain disability. Significant differences were found in several of the secondary outcomes, in favor of the treatment group. DISCUSSION: Internet-based Acceptance and Commitment Therapy with compassion-focused therapy components shows promise as a viable treatment option in the management of chronic pain.
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| 10. |
- Buhrman, Monica, 1974-, et al.
(författare)
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Psychological Treatment Targeting Acceptance and Compassion in Patients With Chronic Pain
- 2023
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Ingår i: The Clinical Journal of Pain. - : Lippincott Williams & Wilkins. - 0749-8047 .- 1536-5409. ; 39:12, s. 672-685
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Chronic pain is often associated with lower function. Self-criticism is associated with depressive symptoms. The purpose of this study was to explore if fusing Acceptance and Commitment Therapy and compassion-focused therapy could improve psychological well-being and disability in individuals with chronic pain with high levels of self-criticism in comparison to a wait-list control group.Methods: Individuals with chronic pain (n=71) were randomly assigned to an 8-week internet-based intervention focused on acceptance and compassion or a wait-list condition. Primary treatment outcomes were the Chronic Pain Acceptance Questionnaire, Self-Compassion Scale, and Pain Disability Index. Secondary outcomes were the Montgomery angstrom sberg Depression Rating Scale, Anxiety Sensitivity Index, Quality of Life Inventory, Multidimensional Pain Inventory, and Perseverative Thinking Questionnaire.Results:Missing data at postintervention were 22.5%. Intention-to-treat analyses were conducted using linear mixed models. The results revealed greater levels of acceptance and self-compassion for the treatment group, which were primary outcomes, with effect sizes ranging from small to large, and these results were maintained at 6-month follow-up. The rates of clinically significant improvements were also greater for the treatment group in comparison to the wait-list control group on acceptance and compassion. The treatment group also improved in the third primary outcome, pain disability. Significant differences were found in several of the secondary outcomes, in favor of the treatment group.Discussion:Internet-based Acceptance and Commitment Therapy with compassion-focused therapy components shows promise as a viable treatment option in the management of chronic pain.
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