Unexplained physical symptoms: outcome, utilization of medical care and associated factors

Five-year trajectories of symptom severity, physical and mental functioning in patients with persistent somatic symptoms: the PROSPECTS cohort study

OBJECTIVES

Knowledge about the long-term course and prognosis of persistent somatic symptoms (PSS) is important to improve clinical decision-making and guidance for patients with PSS. Therefore, we aimed to: (1) identify distinct 5-year trajectories of symptom severity, physical and mental functioning in adult patients with PSS and (2) explore patient characteristics associated with these trajectories.

DESIGN

We used longitudinal data (seven measurements over a 5-year period) of the PROSPECTS study: a prospective cohort of adult patients with PSS. We applied Latent Class Growth Mixture Modelling to identify distinct trajectories for the three outcomes.

SETTING AND PARTICIPANTS

Patients were recruited in general practices and specialised treatment facilities for PSS throughout the Netherlands. The study population consisted of participants with three or more measurements available (n=297).

PRIMARY OUTCOME MEASURES

Symptom severity (Patient Health Questionnaire 15), physical and mental functioning (RAND-36 Physical Component Summary and Mental Component Summary).

RESULTS

For symptom severity, we identified two 'stable' trajectories: 'severe symptoms, stable' (15.8%) and 'moderate symptoms, stable' (84.2%). For physical functioning, we identified three trajectories: 'poor physical functioning, marked improvement' (8.5%); 'poor physical functioning, stable' (34.7%) and 'moderate physical functioning, slight improvement' (56.8%). For mental functioning, we identified three trajectories: 'poor mental functioning, marked improvement' (13.9%); 'moderate mental functioning, deterioration' (12.2%) and 'moderate mental functioning, slight improvement' (73.8%). Patients' characteristics such as personal, social and environmental background, illness stressors, comorbid diseases, cognitive, emotional and behavioural responses varied for the distinct trajectories.

CONCLUSIONS

We identified distinct 5-year trajectories for the three outcomes. Our findings suggest a high prevalence of persistence of symptoms and limited improvement in physical and mental functioning in the majority of patients with PSS. In a small proportion of patients, we identified trajectories that showed considerable physical or mental improvement or deterioration. Patient characteristics differed for the identified trajectories and may guide early recognition, although predictive studies are warranted.

Which patients are at risk of developing symptom diagnoses that persist for more than a year in primary care? Development and external validation of a prediction model

OBJECTIVES

To train, test and externally validate a prediction model that supports General Practitioners (GPs) in early identification of patients at risk of developing symptom diagnoses that persist for more than a year.

METHODS

We retrospectively collected and selected all patients having episodes of symptom diagnoses during the period 2008 and 2021 from the Family Medicine Network (FaMe-Net) database. From this group, we identified symptom diagnoses that last for less than a year and symptom diagnoses that persist for more than a year. Multivariable logistic regression analysis using a backward selection was used to assess which factors were most predictive for developing symptom diagnoses that persist for more than a year. Performance of the model was assessed using calibration and discrimination (AUC) measures. External validation was tested using data between 2018 and 2022 from AHON-registry, a primary care electronic health records data registry including 73 general practices from the north and east regions of the Netherlands and about 460,795 patients.

RESULTS

From the included 47,870 patients with a symptom diagnosis in the FaMe-Net registry, 12,481 (26.1%) had a symptom diagnosis that persisted for more than a year. Older age (≥ 75 years: OR = 1.30, 95% CI [1.19, 1.42]), having more previous symptom diagnoses (≥ 3: 1.11, [1.05, 1.17]) and more contacts with the GP over the last 2 years (≥ 10 contacts: 5.32, [4.80, 5.89]) were predictive of symptom diagnoses that persist for more than a year with a marginally acceptable discrimination (AUC 0.70, 95% CI [0.69-0.70]). The external validation showed poor performance with an AUC of 0.64 ([0.63-0.64]).

CONCLUSION

A clinical prediction model based on age, number of previous symptom diagnoses and contacts might help the GP to early identify patients developing symptom diagnoses that persist for more than a year. However, the performance of the original model is limited. Hence, the model is not yet ready for a large-scale implementation.

Potentially traumatic events, social support and burden of persistent somatic symptoms: A longitudinal study

OBJECTIVE

Psychological trauma is a well-known risk factor for the onset of persistent somatic symptoms (PSS). In contrast, little is known on the relation between potentially traumatic events (PTEs) and the severity of PSS, and on the protective effect of social support. We aimed to: (i) determine whether childhood, adulthood and recent PTEs are associated with burden of PSS over four years of follow-up; (ii) examine associations of multiple and cumulative (in childhood and adulthood) exposure to PTEs with burden of PSS; and (iii) determine whether social support modifies these associations.

METHODS

Longitudinal data of 322 patients with PSS were analyzed. PTEs (Life Events Questionnaire) and social support (Social Support Scale) were assessed at baseline. Burden of PSS was measured in terms of symptom severity (PHQ-15) and physical functioning (RAND-36 PCS) at six repeated measurements over a four-year interval. Associations were analyzed using longitudinal mixed model analysis.

RESULTS

Patients with multiple childhood PTEs reported higher burden of PSS over four-year time. Adulthood PTEs were associated with burden of PSS in patients with, but not in patients without childhood PTEs. Recent PTEs were not associated with burden over time. Social support did not modify any of the associations.

CONCLUSIONS

PTEs are associated with higher burden of PSS over time, in addition to the well-known association with the onset of PSS. PTEs in early life and cumulative exposure to PTEs in childhood and adulthood are associated with higher burden over time in patients with PSS. Social support did not attenuate the associations.

Persistence rate of DSM-5 somatic symptom disorder: 4-year follow-up in patients from a psychosomatic outpatient clinic

BACKGROUND

Somatic Symptom and Related Disorders (SSD) were introduced by DSM-5 in order to improve the classification of somatoform disorders. There is a lack of longitudinal studies on course and predictors of SSD. The present study investigates the natural course of SSD in a four-year follow-up study in patients from a psychosomatic outpatient clinic.

MATERIAL AND METHODS

At baseline, n = 360 outpatients completed a semi-structured clinical interview to assess SSD, and additional self-report questionnaires (SSS-8, SSD-12, PHQ-8, GAD-7, SF-12). 112 patients were re-assessed after four years. Persistence rate and predictors for persisting SSD were evaluated.

RESULTS

The prevalence rate of SSD at baseline was 51.8%, and 47.3% at follow-up. We found a persisting SSD in 30.4% (n = 34) of the patients, a remission rate of 21.4% (n = 24) and an incidence rate of 16.9% (n = 19). 31.3% (n = 35) of the sample never received a SSD diagnosis. Significant predictors for persistence were a high psychological burden through somatic symptoms (OR: 1.13, 95% CI: 1.01-1.26) and general anxiety (OR: 1.38, 95% CI: 1.01-1.88) at baseline.

CONCLUSION

This study indicates that SSD is highly prevalent and persistent in patients from a psychosomatic setting. Our findings indicate that psychological and behavioral factors contribute to the maintenance of SSD and present potential targets for interventions. Future interventions for SSD could potentially be optimized by addressing psychological processes such as catastrophic thinking styles and symptom focusing.

The role of cognitive factors in differentiating individuals with somatoform disorders with and without depression

The present study, based on a cross-sectional design, was conducted in the primary care setting with patients presenting somatic symptoms suggestive of somatoform disorders (SFD). The main aim of the study was to determine whether cognitive variables could differentiate between patients with SFD alone and those who also present depressive symptoms suggestive of depression (SFD + depression). All participants (N = 796) completed validated self-report measures to assess somatic, depressive, and/or anxiety symptoms, as well as functional impairment, quality of life (QoL), and cognitive variables (worry, rumination, metacognition, cognitive distortions, and emotion regulation). Univariate and multivariate analyses (controlled for potential sociodemographic and clinical confounders) were performed. On the univariate analysis, significant differences between the SFD and SFD + depression groups were found in sociodemographic and clinical variables, functional impairment, QoL, and cognitive variables. On the multivariate analysis, the only significative variables associated with comorbid SFD + depression were anxiety (β = 0.27; p < 0.001), physical and psychological QoL (β = -0.10; p = 0.01; and β = -0.21; p < 0.001, respectively), and marital status (β = -65; p < 0.05). Cognitive variables were not significantly related to depressive symptoms in patients with SFD. These findings suggest that patients with SFD - with or without comorbid depression - share common cognitive processes and thus both groups could benefit from transdiagnostic cognitive therapy.

Developing a clinical prediction rule for repeated consultations with functional somatic symptoms in primary care: a cohort study

OBJECTIVES

Patients who present in primary care with chronic functional somatic symptoms (FSS) have reduced quality of life and increased health care costs. Recognising these early is a challenge. The aim is to develop and internally validate a clinical prediction rule for repeated consultations with FSS.

DESIGN AND SETTING

Records from the longitudinal population-based ('Lifelines') cohort study were linked to electronic health records from general practitioners (GPs).

PARTICIPANTS

We included patients consulting a GP with FSS within 1 year after baseline assessment in the Lifelines cohort.

OUTCOME MEASURES

The outcome is repeated consultations with FSS, defined as ≥3 extra consultations for FSS within 1 year after the first consultation. Multivariable logistic regression, with bootstrapping for internal validation, was used to develop a risk prediction model from 14 literature-based predictors. Model discrimination, calibration and diagnostic accuracy were assessed.

RESULTS

18 810 participants were identified by database linkage, of whom 2650 consulted a GP with FSS and 297 (11%) had ≥3 extra consultations. In the final multivariable model, older age, female sex, lack of healthy activity, presence of generalised anxiety disorder and higher number of GP consultations in the last year predicted repeated consultations. Discrimination after internal validation was 0.64 with a calibration slope of 0.95. The positive predictive value of patients with high scores on the model was 0.37 (0.29-0.47).

CONCLUSIONS

Several theoretically suggested predisposing and precipitating predictors, including neuroticism and stressful life events, surprisingly failed to contribute to our final model. Moreover, this model mostly included general predictors of increased risk of repeated consultations among patients with FSS. The model discrimination and positive predictive values were insufficient and preclude clinical implementation.

Impact of symptom focusing and somatosensory amplification on persistent physical symptoms: A three-year follow-up study

OBJECTIVE

The somatosensory amplification theory considers symptom focusing and somatosensory amplification as important perpetuating factors of persistent physical symptoms. We investigated whether symptom focusing and somatosensory amplification were associated with symptom severity and mental and physical functioning over a three-year period in patients with persistent physical symptoms (PPS).

METHODS

Baseline, 6-, 12-, 24- and 36-months follow-up data from the PROSPECTS study, a prospective cohort consisting of 325 patients with PPS, were used. We applied longitudinal mixed model analyses to investigate if symptom focusing (CBRQ Symptom Focusing Subscale) and somatosensory amplification (Somatosensory Amplification Scale) at baseline were associated with symptom severity (PHQ-15), mental and physical functioning (RAND-36 MCS and PCS) over three years, using all measurements.

RESULTS

Symptom focusing was associated with increased symptom severity and lower mental and physical functioning over time. Somatosensory amplification at baseline was associated with increased symptom severity and lower mental and physical functioning over time. Effect sizes were small. Associations with baseline symptom focusing decreased over time, associations with baseline somatosensory amplification were more stable. There was no interaction effect of both constructs, but they partly overlapped.

CONCLUSION

This is the first study to show that over an extended period, symptom focusing and somatosensory amplification are associated with symptom severity and lower mental and physical functioning in patients with PPS. These results support the impact of both symptom focusing and somatosensory amplification on the perpetuation of symptoms and lowered mental and physical functioning in individuals with PPS.

Potential effects of multimodal psychosomatic inpatient treatment for patients with functional vertigo and dizziness symptoms - A pilot trial

OBJECTIVES

Functional vertigo and dizziness (VD) are frequent and severely distressing complaints that are often described as hard to treat. Our aim was to provide preliminary data on potential effects of multimodal psychosomatic inpatient therapy for patients with functional VD symptoms in reducing vertigo-related handicap and related psychopathology, and to evaluate the role of symptom burden and body-related locus of control in predicting vertigo-related handicap at follow-up.

DESIGN

We conducted an uncontrolled clinical pilot trial.

METHODS

We included data of n = 72 inpatients with functional VD as a primary symptom and various psychopathological and/or physical comorbidities admitted for multimodal psychosomatic inpatient treatment. Patients completed self-report questionnaires assessing vertigo-related handicap (VHQ), somatization (PHQ-15), depression (BDI-II), anxiety (BAI), health-related quality of life (HRQOL; SF-36), and body-related locus of control (KLC) at admission (T0), discharge (T1), and 6 months after discharge (T2).

RESULTS

We observed medium effects for the change of vertigo-related handicap (T0-T1: g = -0.60, T0-T2: g = -0.67) and small effects for the change of somatization (T0-T1: g = -0.29, T0-T2: g = -0.24), mental HRQOL (T0-T1: g = 0.43, T0-T2: g = 0.49), and depression (T0-T1: g = -0.41, T0-T2: g = -0.28) from admission to discharge and admission to follow-up. Body-related locus of control did not predict vertigo-related handicap at follow-up.

CONCLUSIONS

Findings provide preliminary evidence for the beneficial role of psychosomatic inpatient treatment for patients with functional VD symptoms. Potentially relevant predictors of outcome at follow-up are discussed.

PRACTITIONER POINTS

The change of vertigo-related handicap and related variables through multimodal psychosomatic inpatient treatment was evaluated in a clinical pilot trial in patients with functional vertigo and dizziness. We observed medium effects for the change of vertigo-related handicap and small effects for the change of somatization, mental health-related quality of life, and depression. Internal body-related locus of control at admission did not predict vertigo-related handicap at follow-up.

Internists' dilemmas in their interactions with chronically ill patients; A comparison of their interaction strategies and dilemmas in two different medical contexts

Background

Internists appear to define productive interactions, key concept of the Chronic Care Model, as goal-directed, catalyzed by achieving rapport, and depending on the medical context: i.e. medically explained symptoms (MES) or medically unexplained symptoms (MUS).

Objective

To explore internists’ interaction strategy discourses in the context of MES and MUS.

Methods

We interviewed twenty internists working in a Dutch academic hospital, identified relevant text fragments in the interview transcripts and analyzed the data based on a discourse analysis approach.

Results

We identified four interaction strategy discourses: relating, structuring, exploring, and influencing. Each was characterized by a dilemma: relating by ‘creating nearness versus keeping distance’; structuring by ‘giving space versus taking control’; exploring by ‘asking for physical versus psychosocial causes’; and influencing by ‘taking responsibility versus accepting a patient’s choice. The balance sought in these dilemmas depended on whether the patient’s symptoms were medically explained or unexplained (MES or MUS). Towards MUS the internists tended to maintain greater distance, take more control, ask more cautiously questions related to psychosocial causes, and take less responsibility for shared decision making.

Discussion and conclusions

Adopting a basic distinction between MES and MUS, the internists in our study appeared to seek a different balance in each of four rather fundamental clinical dilemmas. Balancing these dilemmas seemed more difficult regarding MUS where the internists seemed more distancing and controlling, and tended to draw on their medical expertise. Moving in this direction is counterproductive and in contradiction to guidelines which emphasize that MUS patients warrant emotional support requiring a shift towards interpersonal, empathic communication.

Predicting the course of persistent physical symptoms: Development and internal validation of prediction models for symptom severity and functional status during 2 years of follow-up

OBJECTIVE

Increased knowledge about predictors of the course of persistent physical symptoms (PPS) is needed to identify patients at risk for long-term PPS in clinical settings. Therefore, we developed prediction models for the course of PPS in terms of symptom-severity and related functional status during a 2-year follow-up period.

METHODS

We used data of the PROSPECTS cohort study, consisting of 325 PPS patients from several health care settings. Symptom severity (PHQ-15), physical functioning (RAND 36 PCS) and mental functioning (RAND 36 MCS) were assessed at baseline and 6, 12 and 24 months afterwards. We applied mixed model analyses to develop prediction models for all outcomes, using all follow-up measurements. Potential predictors were based on empirical and theoretical literature and measured at baseline.

RESULTS

For symptom severity, physical functioning and mental functioning we identified predictors for the adverse course of PPS included physical comorbidity, higher severity and longer duration of PPS at baseline, anxiety, catastrophizing cognitions, embarrassment and fear avoidance cognitions, avoidance or resting behaviour and neuroticism. Predictors of a favourable course included limited alcohol use, higher education, higher levels of physical and mental functioning at baseline, symptom focusing, damage cognitions and extraversion. Explained interpersonal variance for all three models varied between 70.5 and 76.0%. Performance of the models was comparable in primary and secondary/tertiary care.

CONCLUSION

The presented prediction models identified several relevant demographic, medical, psychological and behavioural predictors for adverse and favourable courses of PPS. External validation of the presented models is needed prior to clinical implementation.

Treatment course and its predictors in patients with somatoform disorders: A routine outcome monitoring study in secondary psychiatric care

AIM

Somatoform disorders are common and often chronic. It would be helpful to distinguish those patients who are likely to have a positive treatment course from those who are likely to follow a negative course. Such studies of different somatoform disorders are scarce, especially in secondary psychiatric care. This study examined the 6-month treatment course of psychological, physical symptoms, and functioning, and its predictors in a naturalistic sample of secondary psychiatric care outpatients with somatoform disorders.

METHOD

The present study used routine outcome monitoring data of patients with somatoform disorders regarding their 6-month treatment course of psychological and physical symptoms as well as functioning. The following patient groups were included: total group of somatoform disorders (N = 435), and undifferentiated somatoform disorder (N = 242), pain disorder (N = 102), body dysmorphic disorder (N = 51), and hypochondriasis (N = 40). Measures were Mini-International Neuropsychiatric Interview plus, Brief Symptom Inventory, Montgomery-Ǻsberg Depression Rating Scale, Brief Anxiety Scale, Short Form Health Survey 36, and Physical Symptom Checklist (PSC).

RESULTS

The study population generally showed high co-morbidity, especially with anxiety and mood disorders. The PSC total score, body dysmorphic disorder, and hypochondriasis were significant predictors for the treatment course of symptoms (Brief Symptom Inventory), whereas the PSC total score was the only significant predictor for the course of functioning (Short Form Health Survey 36).

CONCLUSION

Secondary psychiatric care outpatients with somatoform disorders showed high co-morbidity with anxiety and mood disorders, and an unfavourable 6-month course of both symptoms and functioning. Clinical implications are discussed, such as additional treatment of co-morbidity in somatoform disorders.

Predictors of Persistent Medically Unexplained Physical Symptoms: Findings From a General Population Study

Objective: To explore the persistency of Medically Unexplained Symptoms (MUS) and its prognostic factors in the general adult population. Knowledge of prognostic factors of MUS may indicate possible avenues for intervention development. Methods: Data were derived from the Netherlands Mental Health Survey and Incidence Study-2 (NEMESIS-2), a nationally representative face-to-face cohort study among the Dutch general population aged 18-64 years. We selected subjects with MUS at baseline and who participated at follow-up (N = 324) and reassessed those subjects for having MUS at 3 year follow-up. Logistic regression analyses were used to determine risk factors for persistency of MUS. Results: 36.4% of the subjects had persistent MUS at follow-up. In logistic regression analyses adjusted for sex and age, persistency of MUS was predicted by the number of comorbid chronic medical disorder(s), lower education, female sex, not having a paid job, parental psychopathology as well as lower functioning. In the logistic regression analysis in which all significant variables adjusted for sex and age were entered simultaneously, three variables predicted persistent MUS: parental psychopathology, the number of comorbid chronic medical disorder(s) and physical functioning, with odds ratios of 2.01 (1.20-3.38), 1.19 (1.01-1.40), and 0.99 (0.97-1.00), respectively. Conclusion: In the adult general population, MUS were persistent in over one third of the subjects with MUS at baseline. Persistency was significantly predicted by parental psychopathology, number of comorbid chronic medical disorders, and physical functioning. These findings warrant further research into early intervention and treatment options for persons with an increased risk of persistent MUS.

Course and predictors of DSM-5 somatic symptom disorder in patients with vertigo and dizziness symptoms - A longitudinal study

BACKGROUND

Somatic symptom disorder (SSD) is a diagnosis that was newly included in DSM-5. Currently, data on the course of SSD are largely lacking. The present study aimed to evaluate the natural course of SSD in a one-year follow-up study in patients with vertigo and dizziness (VD) symptoms.

METHODS

We investigated n=239 outpatients presenting in a tertiary care neurological setting over a one-year period. Patients had a medical examination at baseline and completed self-report questionnaires, which were re-assessed after 12months. DSM-5 SSD was assigned retrospectively. We evaluated the prevalence of SSD at baseline and 12-month follow-up and investigated predictors of the persistence of SSD during the study period.

RESULTS

The prevalence rate of SSD was 36% at baseline and 62% at 12-months follow-up. The persistence rate of SSD was 82% and the incidence rate was high, leading to a markedly increased prevalence rate at follow-up. Risk factors for persistent SSD were a self-concept of bodily weakness (OR: 1.52, 95% CI: 1.30-1.78) and an increase of depression during the study period (OR: 1.11, 95% CI: 1.02-1.22). Further, the diagnosis of an anxiety disorder (OR: 7.52, 95% CI: 1.17-48.23) or both anxiety and depressive disorder (OR: 23.14, 95% CI: 2.14-249.91) at baseline were significant predictors.

CONCLUSIONS

Our findings point out that SSD is highly prevalent in patients with VD symptoms, the incidence of the disorder widely outweighs its remission. Potential predictors of a persistence of SSD are discussed and can be chosen as a focus in therapy.

High healthcare utilization near the onset of medically unexplained symptoms

OBJECTIVE

Patients with medically unexplained syndromes (MUS) often do not receive appropriate healthcare. A critical time for effective healthcare is the inception of MUS. The current study examined data from a prospective longitudinal study of Operation Enduring Freedom/Operation Iraqi Freedom (OEF/OIF) soldiers to understand the relationship of increasing physical symptom burden to healthcare utilization.

METHODS

Data was examined from a prospective study of OEF/OIF soldiers assessed before and one year after deployment (n=336). Physical symptom burden was measured with the Patient Health Questionnaire (PHQ-15). Analyses were conducted with polynomial regression and response surface analysis (RSA).

RESULTS

Increases in physical symptom burden predicted greater healthcare utilization one year after deployment: primary care practitioner (slope=-0.26, F=4.07, p=0.04), specialist (slope=-0.43, F=8.67, p=0.003), allied health therapy (e.g., physical therapy) (slope=-0.41, F=5.71, p=0.02) and mental health (slope=-0.32, F=4.04, p=0.05). There were no significant difference in utilization between those with consistently high levels and those with increases in physical symptom burden.

CONCLUSION

This is the first prospective study to examine, and show, a relationship between onset of clinically significant physical symptoms and greater healthcare utilization. Our data suggest that patients with increasing physical symptom burden have the same level of healthcare as patients with chronic physical symptom burden. Needed next steps are to better understand the quality of care at inception and determine how to intervene so that recommended approaches to care are provided from the onset.

Encouraging the strengths of women patients

This case study illustrates how the use of empowering dialogues in general practice can contribute to alternative images of women, by identifying and emphasizing their strong points. It is a single case study, sampled theoretically from a series of 37 consultations during which key questions about self-assessed health resources were put to women patients. Two women GPs and their consultations were studied. An 18-min dialogue between a 52-year-old woman GP and a 69-year-old woman patient with asthma and back pain was audiotaped and transcribed according to Nessa's principles, supported by pragmatic linguistic theory. The woman's answers changed the doctor's perception of the patient, from that of a passive and resigned sufferer, to that of a strong woman who was active in spite of her pain. Acknowledging this, alternative paths of management could be chosen. In conclusion, disempowering medicalization of women patients can be opposed by resource oriented dialogues in clinical work. However, to change cultural images requires more than individual action.

'It just has to click': Internists' views of: what constitutes productive interactions with chronically ill patients

BACKGROUND

According to the Chronic Care Model, productive interactions are crucial to patient outcomes. Despite productive interactions being at the heart of the Model, however, it is unclear what constitutes such an interaction. The aim of this study was to gain a better understanding of physician views of productive interactions with the chronically ill.

METHOD

We conducted a qualitative study and interviewed 20 internists working in an academic hospital. The data were analyzed using a constructivist approach of grounded theory. To categorize the data, a coding process within which a code list was developed and tested with two other coders was conducted.

RESULTS

The participants engaged in goal-directed reasoning when reflecting on productive interactions. This resulted in the identification of four goal orientations: (a) health outcome; (b) satisfaction; (c) medical process; and (d) collaboration. Collaboration appeared to be conditional for reaching medical process goals and ultimately health outcome and satisfaction goals. Achieving rapport with the patient ('clicking,' in the term of the participants) was found to be a key condition that catalyzed collaboration goals. Clicking appeared to be seen as a somewhat unpredictable phenomenon that might or might not emerge, which one had to accept and work with. Goal orientations were found to be related to the specific medical context (i.e., a participant's subspecialty and the nature of a patient's complaint).

CONCLUSIONS

The participants viewed a productive interaction as essentially goal-directed, catalyzed by the two parties clicking, and dependent on the nature of a patient's complaint. Using the findings, we developed a conceptual process model with the four goal orientations as wheels and with clicking in the center as a flywheel. Because clicking was viewed as important, but somewhat unpredictable, teaching physicians how to click, while taking account of the medical context, may warrant greater attention.

Lack of Energy and Negative Health-Related Outcomes in Nursing Home Residents: Results From the INCUR Study

OBJECTIVE

"Lack of energy" or anergia is a common complaint associated with adverse outcomes in older people. There is a lack of knowledge on this symptom in the nursing home (NH) setting. The aim of this study was to investigate whether lack of energy was associated with hospitalization and mortality in NH residents.

DESIGN

Longitudinal observational cohort study.

SETTING AND PARTICIPANTS

A total of 575 NH residents (72% women) in 13 French NHs from the Incidence of pNeumonia and related ConseqUences in nursing home Residents (INCUR) study cohort.

MEASUREMENTS

Lack of energy was measured at the baseline visit as part of the 10-item Geriatric Depression Scale. Unadjusted and adjusted Cox proportional hazard regression models were performed to test the association of lack of energy with hospitalization events and mortality over 12 months of follow-up.

RESULTS

The mean age of the study sample was 86.3 (SD = 7.5) years. At the baseline, 250 (43.5%) residents complained about lack of energy. Overall, 192 (33.4%) individuals experienced at least 1 hospitalization event and 98 (17.0%) died during the 12-month follow-up. Lack of energy was significantly associated with a higher risk of hospitalization (HR 1.35; 95% CI 1.02-1.80; P = .03), even after adjustment for potential confounders (HR 1.41; 95% CI 1.04-1.91; P = .02). No statistically significant association was found between lack of energy and 12-month mortality.

CONCLUSION

Lack of energy is a predictor of hospitalization in older people living in NHs. It may be considered a relevant clinical feature for identifying individuals at risk of adverse health outcomes, thus potentially serving as a screening tool for subsequently conducting a comprehensive geriatric assessment in this highly vulnerable and complex population.

Development and initial validation of a measure of metacognitive beliefs in health anxiety: The MCQ-HA

Metacognitive beliefs have been shown to correlate with emotional disorders and more recently have been implicated in health anxiety. Research exploring these beliefs have tended to use the Metacognition Questionnaire (MCQ), which is a general measure. To facilitate research on the metacognitive model applied to health anxiety the present study reports on the development and initial evaluation of a new specific metacognitive measure of health anxiety, the Metacognitions Questionnaire-Health Anxiety (MCQ-HA). Principal components analysis identified 14 suitable items to be explored. Subsequent exploratory factor analysis of the MCQ-HA identified three factors: "Beliefs that Thoughts can cause Illness", "Beliefs about Biased thinking", and "Beliefs that Thoughts are Uncontrollable". Confirmatory factor analysis supported the three factor model with all selected goodness-of-fit statistics equivalent to or better than recommended values. Preliminary evidence suggests good internal-consistency, incremental, convergent and discriminant validity in relation to associated measures. The MCQ-HA appears to be a potentially useful predictor of health anxiety.

Fatigue: Relevance and implications in the aging population

Frailty has been identified as a promising condition for distinguishing different degrees of vulnerability among older persons. Several operational definitions have proposed fatigue as one of the features characterizing the frailty syndrome. However, such a subjective symptom is still not yet sufficiently explored and understood. Fatigue is a common and distressing self-reported symptom perceived by the person while performing usual mental and physical activities, highly prevalent in older people, and strongly associated with negative health-related events. The understanding of fatigue is hampered by several issues, including the difficulty at objectively operationalizing, the controversial estimates of its prevalence, and the complex pathophysiological mechanisms underlying its manifestation. Despite such barriers, the study of fatigue is important and might be encouraged. Fatigue may be the marker of the depletion of the body's homeostatic reserves to a threshold leading to its psycho-physical functional impairment, mirroring the concept of frailty. Its subjective and symptomatic nature resembles that of other conditions (e.g., pain, depression), which equally affect the individual's quality of life, expose to negative outcomes, and severely burden healthcare expenditures. In the present paper, we present an overview of the current knowledge on fatigue in older persons in order to increase awareness about its clinical and research relevance. Future research on this topic should be encouraged and developed because it could potentially lead to novel interventions against this symptom as well as against frailty and age-related conditions.

Adverse events and deterioration reported by participants in the PACE trial of therapies for chronic fatigue syndrome

OBJECTIVE

Adverse events (AEs) are health related events, reported by participants in clinical trials. We describe AEs in the PACE trial of treatments for chronic fatigue syndrome (CFS) and baseline characteristics associated with them.

METHODS

AEs were recorded on three occasions over one year in 641 participants. We compared the numbers and nature of AEs between treatment arms of specialist medical care (SMC) alone, or SMC supplemented by adaptive pacing therapy (APT), cognitive behaviour therapy (CBT) or graded exercise therapy (GET). We examined associations with baseline measures by binary logistic regression analyses, and compared the proportions of participants who deteriorated by clinically important amounts.

RESULTS

Serious adverse events and reactions were infrequent. Non-serious adverse events were common; the median (quartiles) number was 4 (2, 8) per participant, with no significant differences between treatments (P=.47). A greater number of NSAEs were associated with recruitment centre, and baseline physical symptom count, body mass index, and depressive disorder. Physical function deteriorated in 39 (25%) participants after APT, 15 (9%) after CBT, 18 (11%) after GET, and 28 (18%) after SMC (P<.001), with no significant differences in worsening fatigue.

CONCLUSIONS

The numbers of adverse events did not differ significantly between trial treatments, but physical deterioration occurred most often after APT. The reporting of non-serious adverse events may reflect the nature of the illness rather than the effect of treatments. Differences between centres suggest that both standardisation of ascertainment methods and training are important when collecting adverse event data.

A randomized trial of treatments for high-utilizing somatizing patients

BACKGROUND

Somatization and hypochondriacal health anxiety are common sources of distress, impairment, and costly medical utilization in primary care practice. A range of interventions is needed to improve the care of these patients.

OBJECTIVE

To determine the effectiveness of two cognitive behavioral interventions for high-utilizing, somatizing patients, using the resources found in a routine care setting.

DESIGN

Patients were randomly assigned to a two-step cognitive behavioral treatment program accompanied by a training seminar for their primary care physicians, or to relaxation training. Providers routinely working in these patients' primary care practices delivered the cognitive behavior therapy and relaxation training. A follow-up assessment was completed immediately prior to treatment and 6 and 12 months later.

SUBJECTS

Eighty-nine medical outpatients with elevated levels of somatization, hypochondriacal health anxiety, and medical care utilization.

MEASUREMENTS

Somatization and hypochondriasis, overall psychiatric distress, and role impairment were assessed with well-validated, self-report questionnaires. Outpatient visits and medical care costs before and after the intervention were obtained from the encounter claims database.

RESULTS

At 6 month and 12 month follow-up, both intervention groups showed significant improvements in somatization (p < 0.01), hypochondriacal symptoms (p < 0.01), overall psychiatric distress (p < 0.01), and role impairment (p < 0.01). Outcomes did not differ significantly between the two groups. When both groups were combined, ambulatory visits declined from 10.3 to 8.8 (p = 0.036), and mean ambulatory costs decreased from $3,574 to $2,991 (pp = 0.028) in the year preceding versus the year following the interventions. Psychiatric visits and costs were unchanged.

CONCLUSIONS

Two similar cognitive behavioral interventions, delivered with the resources available in routine primary care, improved somatization, hypochondriacal symptoms, overall psychiatric distress, and role function. They also reduced the ambulatory visits and costs of these high utilizing outpatients.

Predicting outcomes of mood, anxiety and somatoform disorders: the Leiden routine outcome monitoring study

BACKGROUND

Mood, anxiety and somatoform (MAS) disorders are highly prevalent disorders with substantial mutual comorbidity and a large disease burden. Early identification of patients at risk for poor outcome in routine clinical practice is of clinical importance. The purpose of this study was to predict outcomes in outpatients with MAS disorders using routine outcome monitoring (ROM) data.

METHODS

We conducted a cohort study of 892 adult MAS patients in a naturalistic outpatient psychiatric specialty care setting and validated our results in a replication cohort of 1392 patients. Poor outcome was defined as a <50% reduction (compared to baseline) on the self-report brief symptom inventory (BSI) or a score of ≥3 on the observer-rated clinical global impression severity scale (CGI-S). During a follow-up of up to 2 years, Cox regression models were used to analyze the independent baseline predictors for poor outcome.

RESULTS

In multivariable Cox regression models, independent and replicated predictors for poor outcome were higher age (overall p<0.001 for combined cohorts in multivariable Cox regression model), having comorbid MAS disorders or a somatoform disorder (<0.001), dysfunctional personality traits (i.e., tendency to self-harm [p<0.001], intimacy problems [p<0.001] and affective lability [p<0.001]), and a low reported general health status (p<0.001).

LIMITATIONS

Detailed treatment information was not available.

CONCLUSIONS

MAS patients meeting the profile of being elderly, suffering from comorbid MAS disorders or a somatoform disorder, with cluster B personality traits, and a poor reported general health may need special preventive measures to minimise the risk of poor outcome.

Effective group training for patients with unexplained physical symptoms: a randomized controlled trial with a non-randomized one-year follow-up

BACKGROUND

Although cognitive-behavioral therapy for Unexplained Physical Symptoms (UPS) is effective in secondary care, studies done in primary care produced implementation problems and conflicting results. We evaluated the effectiveness of a cognitive-behavioral group training tailored to primary care patients and provided by a secondary community mental-health service reaching out into primary care.

METHODOLOGY/PRINCIPAL FINDINGS

The effectiveness of this training was explored in a randomized controlled trial. In this trial, 162 patients with UPS classified as undifferentiated somatoform disorder or as chronic pain disorder were randomized either to the training or a waiting list. Both lasted 13 weeks. The preservation of the training's effect was analyzed in non-randomized follow-ups, for which the waiting group started the training after the waiting period. All patients attended the training were followed-up after three months and again after one year. The primary outcomes were the physical and the mental summary scales of the SF-36. Secondary outcomes were the other SF-36-scales and the SCL-90-R. The courses of the training's effects in the randomized controlled trial and the follow-ups were analyzed with linear mixed modeling. In the randomized controlled trial, the training had a significantly positive effect on the quality of life in the physical domain (Cohen's d = 0.38;p = .002), but this overall effect was not found in the mental domain. Regarding the secondary outcomes, the training resulted in reporting an improved physical (Cohen's d = 0.43;p = 0.01), emotional (Cohen's d = 0.44;p = 0.01), and social (Cohen's d = 0.36;p = 0.01) functioning, less pain and better functioning despite pain (Cohen's d = 0.51;p = <0.001), less physical symptoms (Cohen's d = -.23;p = 0.05) and less sleep difficulties (Cohen's d = -0.25;p = 0.04) than time in the waiting group. During the non-randomized follow-ups, there were no relapses.

CONCLUSIONS/SIGNIFICANCE

The cognitive-behavioral group training tailored for UPS in primary care and provided by an outreaching secondary mental-health service appears to be effective and to broaden the accessibility of treatment for UPS.

TRIAL REGISTRATION

TrialRegister.nl NTR1609

Sustained medically unexplained physical symptoms in euthymic patients with recurrent depression: predictive value for recurrence and associations with omega 3- and 6 fatty acids and 5-HTTLPR?

BACKGROUND

Identification of potentially modifiable risk factors for recurrence in recurrent depression could provide opportunities to improve preventive interventions. In this study we aimed to examine the predictive value of medically unexplained physical symptoms (MUPS) on time to recurrence in recurrent depression. Additionally, to elucidate pathophysiological mechanisms that could explain the relations between MUPS and depression, we investigate the association between a sustained high level of MUPS, and (I) omega (ω)-3 and -6 fatty acid (FA)-status and (II) functional polymorphisms in the promoter region of the serotonin transporter gene (5-HTTLPR).

METHODS

Based on three Physical Symptom Checklist (PCS) scores over 12 months, we defined two groups of remitted recurrently depressed patients: 41 patients with a sustained high number of MUPS and 34 patients with a sustained low number or no MUPS. Patients were followed-up for 3.5 years while recurrence of their depression was monitored. In addition, we analyzed patients' erythrocyte's FA-profiles and triallelically genotyped their 5-HTTLPR.

RESULTS

A sustained high level of MUPS predicted consecutive depression recurrence over 3.5 years (adjusted relative risk 2.8). FA-status and distribution of 5-HTTLPR variant frequencies did not differ between patients with sustained high compared to low/absent MUPS-levels.

LIMITATIONS

Our sample was relatively small.

CONCLUSION

Remitted recurrently depressed patients with sustained MUPS have a considerably increased risk of recurrence. Having sustained MUPS is not associated with either erythrocyte ω-3 or -6 FA-levels or 5-HTTLPR polymorphism. Recognition and reducing MUPS in an early state could prevent a (depressive) relapse.

Course and prediction of somatoform disorder and medically unexplained symptoms in primary care

THEORY/OBJECTIVE: Somatoform disorder (SFD) is associated with considerable psychosocial impairment. However, only a few studies have dealt with the course of this clinical subgroup. Therefore, the objective was to identify predictors for the various courses of SFD and medically unexplained symptoms (MUS).

METHOD

We screened 620 consecutive patients in primary care using the Patient Health Questionnaire (PHQ-15). Afterwards, 308 patients were studied in more detail using a diagnostic interview and a set of questionnaires. One year later, we were able to interview 277 participants a second time.

RESULT

After 1 year, 48.8% of the respondents had a remitted SFD. The following variables proved to be significant predictors of MUS: current depressive episode, negative life events, number of MUS at baseline, attributional style, autonomic sensations and catastrophizing cognitions. The course of SFD could be predicted through current depressive or anxiety disorder, negative life events, functional disability and attributional style.

CONCLUSION

Somatoform disorder has a favorable course. The predictors of the courses of SFD and MUS we found can be integrated into previous explanatory models. The coping with MUS or SFD can be seen as a mediating factor.

A prevention programme for somatoform disorders is effective for affective disorders

OBJECTIVE

To assess the effectiveness of a psycho-educational programme for the primary prevention of somatoform disorders in healthy primary care patients.

METHODS

Randomized, controlled trial. Participants (N=104) were randomly assigned to: (1) a psycho-educational intervention, or (2) no intervention at all. The primary outcome measure was somatoform disorder psychiatric diagnosis at 5-year follow-up. Secondary outcome measures were hypochondriasis, locus of control and attribution of symptoms and psychological distress.

RESULTS

At 3 and 6 months, and 5 years, the intervention group significantly decreased hypochondriasis and somatic attributions; and increased psychological and normalizing attributions and internal locus of control. Five years after baseline, the prevalence of somatoform disorders showed no differences between both groups. Nevertheless, overall psychiatric morbidity was less prevalent in the intervention group (odds ratio: 2.72; 95%CI:1.10-6.72). In addition, a decrease in depression and anxiety subscales and in overall General Health Questionnaire scoring (p<.05) was found in the intervention group.

CONCLUSIONS

A primary prevention programme for somatization seems to be useful, not to decrease somatoform disorders, but to prevent anxiety and depressive disorders. The effects of overlapping psychobiological mechanisms are discussed.

Neurology out-patients with symptoms unexplained by disease: illness beliefs and financial benefits predict 1-year outcome

BACKGROUND

Patients whose symptoms are 'unexplained by disease' often have a poor symptomatic outcome after specialist consultation, but we know little about which patient factors predict this. We therefore aimed to determine predictors of poor subjective outcome for new neurology out-patients with symptoms unexplained by disease 1 year after the initial consultation.

METHOD

The Scottish Neurological Symptom Study was a 1-year prospective cohort study of patients referred to secondary care National Health Service neurology clinics in Scotland (UK). Patients were included if the neurologist rated their symptoms as 'not at all' or only 'somewhat explained' by organic disease. Patient-rated change in health was rated on a five-point Clinical Global Improvement (CGI) scale ('much better' to 'much worse') 1 year later.

RESULTS

The 12-month outcome data were available on 716 of 1144 patients (63%). Poor outcome on the CGI ('unchanged', 'worse' or 'much worse') was reported by 482 (67%) out of 716 patients. The only strong independent baseline predictors were patients' beliefs [expectation of non-recovery (odds ratio [OR] 2.04, 95% confidence interval [CI] 1.40-2.96), non-attribution of symptoms to psychological factors (OR 2.22, 95% CI 1.51-3.26)] and the receipt of illness-related financial benefits (OR 2.30, 95% CI 1.37-3.86). Together, these factors predicted 13% of the variance in outcome.

CONCLUSIONS

Of the patients, two-thirds had a poor outcome at 1 year. Illness beliefs and financial benefits are more useful in predicting poor outcome than the number of symptoms, disability and distress.

Dysfunction of the hypothalamic-pituitary-adrenal axis and functional somatic symptoms: a longitudinal cohort study in the general population

In persons with functional somatic symptoms (FSS), no conventionally defined organic pathology is apparent. It has been suggested that complex interactions of psychological, physiological, and social factors are involved in the etiology of FSS. One of the physiological mechanisms that may contribute to FSS is the function of the hypothalamic-pituitary-adrenal (HPA)-axis. This study investigates the association of HPA-axis function with cross-sectional presence and prospective development of FSS in the general population. This study was performed in a population-based cohort of 741 male and female adults (mean age 53.1, S.D. 10.9). Participants completed the somatization section of the Composite International Diagnostic Interview (CIDI) in which the presence of 43 FSS is surveyed. In addition to the total number of FSS, bodily system FSS clusters with musculoskeletal, gastrointestinal, cardiorespiratory, and general symptoms were constructed. HPA-axis function was assessed by measuring 24-h urinary free cortisol (24-h UFC) excretion. Follow-up measurements were performed approximately 2 years later. All analyses were adjusted for age, gender, body mass index, smoking, alcohol use, depression, exercise frequency, and urinary volume. Regression analysis detected no cross-sectional association between 24-h UFC excretion and the number of FSS (beta=-0.021, t=-0.521, p=0.603). In addition, 24-h UFC excretion was not associated with any of the bodily system FSS clusters (all p>0.050). Furthermore, 24-h UFC excretion did not predict new-onset FSS in the 2-year follow-up period (beta=0.021, t=0.566, p=0.572). We conclude that this study does not provide evidence for an association between altered HPA-axis function, as indexed by 24-h UFC, and FSS in the general population. We conclude that this study does not provide evidence for an association between altered HPA-axis function, as indexed by 24-h UFC, and FSS in the general population.

Medically unexplained symptoms, somatisation disorder and hypochondriasis: course and prognosis. A systematic review

OBJECTIVE

To study the course of medically unexplained symptoms (MUS), somatisation disorder, and hypochondriasis, and related prognostic factors. Knowledge of prognostic factors in patients presenting persistent MUS might improve our understanding of the naturalistic course and the identification of patients with a high risk of a chronic course.

METHODS

A comprehensive search of Medline, PsycInfo, CINAHL, and EMBASE was performed to select studies focusing on patients with MUS, somatisation disorder, and hypochondriasis, and assessing prognostic factors. Studies focusing on patients with single-symptom unexplained disorder or distinctive functional somatic syndromes were excluded. A best-evidence synthesis for the interpretation of results was used.

RESULTS

Only six studies on MUS, six studies on hypochondriasis, and one study on abridged somatisation could be included. Approximately 50% to 75% of the patients with MUS improve, whereas 10% to 30% of patients with MUS deteriorate. In patients with hypochondriasis, recovery rates vary between 30% and 50%. In studies on MUS and hypochondriasis, we found some evidence that the number of somatic symptoms at baseline influences the course of these conditions. Furthermore, the seriousness of the condition at baseline seemed to influence the prognosis. Comorbid anxiety and depression do not seem to predict the course of hypochondriasis.

CONCLUSIONS

Due to the limited numbers of studies and their high heterogeneity, there is a lack of rigorous empirical evidence to identify relevant prognostic factors in patients presenting persistent MUS. However, it seems that a more serious condition at baseline is associated with a worse outcome.

Diagnostic interaction: the patient as a source of knowledge?

OBJECTIVE

To explore diagnostic interaction to understand more about why some problems appear medically unexplained.

DESIGN

A qualitative discourse analysis case study.

SETTING

Encounters between women patients and general practitioners in primary healthcare.

SUBJECTS

Microanalysis of two audiotaped consultations without a clear-cut diagnosis and opposing levels of mutuality between doctor and patient.

MAIN OUTCOME MEASURES

Descriptions of linguistic patterns in diagnostic interaction.

RESULTS

Two patterns were identified demonstrating how different ways of speech acts contribute or obstruct diagnostic interaction and common ground for understanding. To invite or reject the patient into/from the diagnostic process, and to recognize or stereotype the patient may impose on how illness stories are perceived as medically unexplained.

CONCLUSION

Making sense of illness can be enhanced by inviting and recognizing the patient's story.

Distinguishing between hypochondriasis and somatization disorder: a review of the existing literature

A valid classification is important for further understanding of the somatoform disorders. The main disorders in this grouping - somatization disorder and hypochondriasis - have lengthy historical traditions and are defined in a contrasting manner. Various authors point to distinguishing demographic and clinical features, but there have been few direct comparisons of patients with these disorders. A review of the literature indicates those domains where differences are most likely to be found. Research assessing these may serve to refine and validate these key somatoform categories and/or dimensions.

Somatoform Disorder in Primary Care: Course and the Need for Cognitive-Behavioral Treatment

Medically unexplained physical symptoms are prevalent in primary care. Of all patients attending the family physician, 16% have a somatoform disorder as described by DSM-IV. Cognitive-behavioral treatment has been demonstrated to be effective in secondary care. However, the course of somatoform disorders and their need for treatment have not yet been established in primary care. In this study, data from 1,046 attendees in family practice were analyzed for prevalence, course, and eligibility for treatment. Over a 6-month follow-up, the prevalence of somatoform disorder decreased from 16.1% to 12.3%. After assessment of eligibility, about 5% of patients demonstrated a need for treatment.

Number of bodily symptoms predicts outcome more accurately than health anxiety in patients attending neurology, cardiology, and gastroenterology clinics

BACKGROUND

In consecutive new outpatients, we aimed to assess whether somatization and health anxiety predicted health care use and quality of life 6 months later in all patients or in those without demonstrable abnormalities.

METHOD

On the first clinic visit, participants completed the Illness Perception Questionnaire (IPQ), the Health Anxiety Questionnaire (HAQ), and the Hospital Anxiety and Depression Scale (HADS). Outcome was assessed as: (a) the number of medical consultations over the subsequent 6 months, extracted from medical records, and (b) Short-Form Health Survey 36 (SF36) physical component score 6 months after index clinic visit.

RESULTS

A total of 295 patients were recruited (77% response rate), and medical consultation data were available for 275. The number of bodily symptoms was associated with both outcomes in linear fashion (P<.001), and this was independent of anxiety and depression. Similar associations were found in people with or without symptoms due to demonstrable structural abnormalities. Health anxiety was associated only with health-related quality of life in patients with symptoms explained by demonstrable abnormalities.

CONCLUSION

The number of bodily symptoms and degree of health anxiety have different patterns of association with outcome, and these need to be considered in revising the diagnoses of somatization and hypochondriasis.

The potentially somatizing effect of clinical consultation

Many patients who present physical symptoms that their doctors cannot explain by physical disease have persisting symptoms and impairment. An influential view has been that such symptoms are the somatization of emotional distress, but there has also been concern that medical practice contributes to shaping these presentations. Analysis of patients' accounts indicate that they approach these consultations with a sense of being the expert on the nature and reality of their symptoms and, in primary care at least, they seek convincing explanations, engagement, and support. They often describe doctors as doubting that their symptoms are real and as not taking their symptoms seriously. Observational research has demonstrated that patients presenting idiopathic symptoms in primary care generally provide cues to their need for explanation or to psychosocial difficulties. Their doctors tend to provide simple reassurance rather than detailed explanations, and often disregard psychosocial cues. Patients seem to intensify their presentation in consequence, elaborating and extending their accounts of their symptoms, perhaps in the effort to engage their doctors and demonstrate the reality of their symptoms. When doctors propose physical investigation and treatment in response to such escalating presentation, they thereby inadvertently somatize patients' psychological presentation. Consultations, therefore, have elements of contest, whereby patients seek engagement from doctors who seek to disengage. Although provision of a medical label, such as a functional diagnosis, can legitimize patients' complaints and avoid contest, this is at the risk of indicating that medicine can take responsibility for managing the symptoms. More collaborative relationships rely on doctors recognizing patients' authority in knowing about their symptoms, and providing tangible explanations that make sense to the patient and allow them to tolerate or manage the symptoms. Researchers need to study how doctors can best achieve these aims within routine consultations.

Somatoform disorders in general practice: prevalence, functional impairment and comorbidity with anxiety and depressive disorders

BACKGROUND

General practitioners play a pivotal part in the recognition and treatment of psychiatric disorders. Identifying somatoform disorders is important for the choice of treatment.

AIMS

To quantify the prevalence of, and functional impairment associated with, somatoform disorders, and their comorbidity with anxiety/depressive disorders.

METHOD

Two-stage prevalence study: a set of questionnaires was completed by 1046 consecutive patients of general practitioners (aged 25-80 years), followed by a standardised diagnostic interview (SCAN 2.1).

RESULTS

The prevalence of somatoform disorders was 16.1% (95% CI 12.8-19.4). When disorders with only mild impairment were included, the prevalence increased to 21.9%. Comorbidity of somatoform disorders and anxiety/depressive disorders was 3.3 times more likely than expected by chance. In patients with comorbid disorders, physical symptoms, depressive symptoms and functional limitations were additive.

CONCLUSIONS

Our findings underline the importance of a comprehensive diagnostic approach to psychiatric disorders in general practice.

Personality and affect as determinants of medically unexplained symptoms in primary care; A follow-up study

OBJECTIVE

To examine whether the personality dimensions, neuroticism and alexithymia, and the affective state dimensions measuring negative and positive affect significantly contributed to changes over time in the number of medically unexplained symptoms (MUS) reported.

METHODS

A total of 318 patients, presenting to their primary care physician with MUS, participated in the study. Logistic regression analyses were conducted to assess to what extent neuroticism, alexithymia, negative affect and positive affect independently contributed to (1) increase vs. decrease in the number of symptoms reported, and (2) the presence of a consistently high number of MUS over a 6-month follow-up period.

RESULTS

Negative affect was the strongest determinant of changes in the number of symptoms reported. In addition, low positive affect significantly contributed to changes in the number of symptoms over time. Next to negative affect, the dimension of alexithymia measuring difficulty in identifying feelings (DIF) was found to be an independent predictor of a consistently high number of MUS. Neither neuroticism nor general alexithymia independently contributed to changes in the number of symptoms over time or to symptom persistence.

CONCLUSIONS

Negative affect is an important determinant of MUS, because it contributes both to symptom evolution and symptom persistence. Positive affect has a beneficial effect on somatic symptom evolution, whereas the alexithymia dimension measuring DIF clearly contributes to the prediction of symptom persistence.

Alexithymia does not predict the persistence of medically unexplained physical symptoms

BACKGROUND

Alexithymia is thought to be associated with the development of medically unexplained physical symptoms (UPS). So far little research has been published on alexithymia as a risk factor for the persistence of UPS.

OBJECTIVE

To determine the clinical outcome in UPS patients and to study the relative importance of alexithymia in predicting that outcome.

METHODS

A follow-up study was conducted among general medical outpatients with UPS. Patients underwent extensive examinations at baseline and were reassessed after a mean 61-week interval. Outcome of the UPS and general health perception at follow-up were used as major outcome variables.

RESULTS

Outcome of the UPS and general health perception at follow-up were not strongly associated with each other. More than half (63%) of the patients reported improvement of their initial symptoms, but only 38% of the patients considered themselves at follow-up to be in good health. UPS outcome was predominantly predicted by the duration of the UPS and the number of additional physical symptoms at baseline. General health perception at follow-up was predominantly predicted by the general health perception at baseline and the number of additional physical symptoms and pain experience at baseline. The explained variance of the general health perception was three times as high as the explained variance for the UPS outcome. Alexithymia was not associated with any of the two outcome variables.

CONCLUSIONS

Outcome of the UPS and general health perception at follow-up are not strongly associated and are predicted by different variables. Alexithymia, however, is not an important predictor for the outcome in the majority of UPS patients.

Do childhood adversity and recent social stress predict health care use in patients presenting with upper abdominal or chest pain?

OBJECTIVE

A comprehensive model of health care use by patients with functional gastrointestinal disorders has not been fully tested. This study aimed to establish whether reported childhood and/or recent adversity are independent predictors of health care use when all other relevant factors are also included in the model.

MATERIALS AND METHODS

Consecutive new patients with upper abdominal or chest pain presenting to a secondary/tertiary clinic were assessed using the Childhood Experience of Care and Abuse and Life Events and Difficulties Schedules. They completed the Hospital Anxiety and Depression and Health Anxiety Questionnaires. Outcome was total number of health care visits recorded in hospital and general practice (GP) records over 18 months.

RESULTS

One hundred fifty-one patients were included (65% response rate). Health care visits were most frequent in unmarried (p < 0.0005), females (p < 0.0005), and those lacking social support (p = 0.012). In multiple regression analysis to predict number of health care visits, reported sexual abuse (p = 0.042) and death of a sibling during childhood (p = 0.026) were also independent predictors, together with SF36 subscale scores for physical function, health perception, and mental health (35% of variance explained). Childhood adversity predicted health care use in patients with functional gastrointestinal disorders and recent social stress did so in patients with demonstrated pathological findings.

CONCLUSION

After adjustment for demographic, physical, and psychological factors, childhood adversity, especially in severe form, is an independent predictor of health care use in patients with upper functional gastrointestinal disorders. The same was not true for patients consulting for demonstrable pathological abnormalities, for whom ongoing social stress was an independent predictor.

The outcome of neurology outpatients with medically unexplained symptoms: a prospective cohort study

BACKGROUND

In a previous cross sectional study of 300 consecutive new attenders at neurology outpatient clinics, 90 were detected with symptoms that were rated as "not at all" or only "somewhat" explained by organic disease.

OBJECTIVE

To report a follow up study of this cohort.

METHODS

Patients were reinterviewed by telephone eight months after their initial assessment. They were asked to rate their overall improvement on a clinical global improvement scale, and their health status on the medical outcome short form 36 item scale (SF-36). The PRIME MD interview was administered to determine psychiatric diagnoses. Neurological and primary care records were reviewed for any changes in diagnostic opinion during the follow up period.

RESULTS

Of the 90 eligible patients, 66 (73%) participated in follow up. Among these, five (8%) rated themselves as "much worse," four (6%) as "somewhat worse," 27 (40%) as "just the same," 15 (23%) as "somewhat better," and 15 (23%) as "much better." There were no cases in which an organic cause for the presenting complaint was uncovered during the follow up period. Poorer physical function at baseline was the only predictor of poorer outcome at follow up.

CONCLUSIONS

Over half the patients who presented to neurologists with symptoms that were rated as largely or completely medically unexplained had not improved eight months later. In no case was a disease explanation for the original presenting symptoms subsequently identified.

Encountering the continuing challenges for women with chronic pain: recovery through recognition

This work is based on experiences from a group treatment for women with chronic musculoskeletal pain. The authors explored the nature and consequences of the reported benefits from being met with recognition in the groups, focusing the potential usefulness in everyday life. In-depth interviews of six participants of various age and backgrounds were conducted. The women's answers reflected how recognition had enhanced strength, confidence, and awareness expressed as increased bodily, emotional, and social competence. This competence provided tools to handle their pain and illness. Achieving the sense of a better life with chronic pain represents an important recovery process. Because of the normative and gendered way the term "coping(ability)" has been used, the authors introduce recovery competence as a more fruitful concept.

Patients presenting with somatic complaints: epidemiology, psychiatric comorbidity and management

Somatic symptoms are the leading cause of outpatient medical visits and also the predominant reason why patients with common mental disorders such as depression and anxiety initially present in primary care. At least 33% of somatic symptoms are medically unexplained, and these symptoms are chronic or recurrent in 20% to 25% of patients. Unexplained or multiple somatic symptoms are strongly associated with coexisting depressive and anxiety disorders. Other predictors of psychiatric co-morbidity include recent stress, lower self-rated health and higher somatic symptom severity, as well as high healthcare utilization, difficult patient encounters as perceived by the physician, and chronic medical disorders. Antidepressants and cognitive-behavioural therapy are both effective for treatment of somatic symptoms, as well as for functional somatic syndromes such as irritable bowel syndrome, fibromyalgia, pain disorders, and chronic headache. A stepped care approach is described, which consists of three phases that may be useful in the care of patients with somatic symptoms.

Posttraumatic stress symptomatology is associated with unexplained illness attributed to Persian Gulf War military service

OBJECTIVE

Controversy exists concerning unexplained illness in Persian Gulf War veterans, especially regarding the contribution of psychological trauma. We sought to determine if war zone trauma or posttraumatic stress symptomatology (PTSS) are associated with illnesses reported by Gulf War veterans that were documented by medical examination but not attributable to a medical diagnosis.

METHODS

A total of 1119 (55% response rate) of 2022 randomly sampled veterans of the United States Persian Gulf War were screened and 237 cases and 113 controls were identified by medical examination for a case-control study comparing Persian Gulf War military veterans with or without medically documented, but unexplained, symptoms. Multivariate logistic regression and cross-validation analyses examined self-report measures of demographics, subjective physical symptoms and functioning, psychiatric symptoms, stressors, war zone trauma, and PTSS, to identify correlates of case-control status.

RESULTS

Posttraumatic stress symptomatology and somatic complaints were independently associated with case status, as were (although less consistently) war zone trauma and depression. Age, education, and self-reported health, stress-related somatization, pain, energy/fatigue, illness-related functional impairment, recent stressors, and anxiety were univariate (but not multivariate) correlates of case status.

CONCLUSIONS

PTSS related to war zone trauma warrants additional prospective research study and attention in clinical screening and assessment as a potential contributor to the often debilitating physical health problems experienced by Persian Gulf War veterans.

Resource utilization of patients with hypochondriacal health anxiety and somatization

OBJECTIVES

To examine the resource utilization of patients with high levels of somatization and health-related anxiety.

DESIGN

Consecutive patients on randomly chosen days completed a self-report questionnaire assessing somatization and health-related, hypochondriacal anxiety. Their medical care utilization in the year preceding and following completion of the questionnaire was obtained from an automated patient record. The utilization of patients above and below a predetermined threshold on the questionnaire was then compared.

PATIENTS AND SETTING

Eight hundred seventy-six patients attending a primary care clinic in a large, urban, teaching hospital.

OUTCOME MEASURES

Number of ambulatory physician visits (primary care and specialist), outpatient costs (total, physician services, and laboratory procedures), proportion of patients hospitalized, and proportion of patients receiving emergency care.

RESULTS

Patients in the uppermost 14% of the clinic population on somatization and hypochondriacal health anxiety had appreciably and significantly higher utilization in the year preceding and the year following completion of the somatization questionnaire than did the rest of the patients in the clinic. After adjusting for group differences in sociodemographic characteristics and medical comorbidity, significant differences in utilization remained. In the year preceding the assessment of somatization, their adjusted total outpatient costs were $1,312 (95% CI $1154, $1481) versus $954 (95% CI $868, $1057) for the remainder of the patients and the total number of physician visits was 9.21 (95% CI 7.94, 10.40) versus 6.33 (95% CI 5.87, 6.90). In the year following the assessment of somatization, those above the threshold had adjusted total outpatient costs of $1,395 (95% CI $1243, $1586) versus $1,145 (95% CI $1038, $1282), 9.8 total physician visits (95% CI 8.66, 11.07) versus 7.2 (95% CI 6.62, 7.77), and had a 24% (95% CI 19%, 30%) versus 17% (95% CI 14%, 20%) chance of being hospitalized.

CONCLUSIONS

Primary care patients who somatize and have high levels of health-related anxiety have considerably higher medical care utilization than nonsomatizers in the year before and after being assessed. This differential persists after adjusting for differences in sociodemographic characteristics and medical morbidity.

Searching for a gastrointestinal subgroup within the somatoform disorders

The authors examined whether patients suffering from functional gastrointestinal symptoms constitute a separate group within the broader concept of the somatoform disorders. The authors compared 103 patients with a severe gastrointestinal syndrome, 220 patients with a somatization syndrome according to DSM-IV, and 250 clinical control subjects with nonsomatoform mental disorders. The gastrointestinal group showed more catastrophizing thinking, complained more about autonomic sensations, felt bodily weaker, was less tolerant towards bodily discomfort, had developed more hypochondriacal fears and behaviors, was more depressed, and was more severely disabled in different areas of psychosocial functioning than the other groups. These differences, however, disappeared when general somatization was controlled for by analysis of covariance. Only a small effect related to dysfunctional cognitions remained specific to the gastrointestinal syndrome. Because these results do not confirm the idea of an independent gastrointestinal syndrome, general mechanisms of somatization seem to play the dominant role.

Patients' perceptions of medical explanations for somatisation disorders: qualitative analysis

OBJECTIVES

To describe, from the perspective of patients, distinguishing features of doctors' attempts to explain the symptoms of somatisation disorders.

DESIGN

Qualitative analysis of verbatim records of interviews in which patients recounted doctors' explanations of their symptoms.

SETTING

Patients with persistent somatising symptoms referred from general practices in Liverpool and St Helens and Knowsley were interviewed before entry into a treatment programme.

SUBJECTS

228 of 324 patients referred were interviewed. Initial interviews were used to develop the process and technique, and the final analysis was based on a subsample of 68 records, randomly chosen from the transcripts of 188 subjects who were interviewed subsequently.

RESULTS

Doctors' explanations were often at odds with the patients' own thinking. Analysis showed that medical explanations could be grouped into one of three categories, defined by the patients' perceptions. Most explanations were experienced as rejecting the reality of the symptoms. An intermediate category comprised explanations that were viewed as colluding, in which the doctor acquiesced with the patients' own biomedical theories. However, a few explanations were perceived by patients as tangible, exculpating, and involving. These explanations were experienced by patients as satisfying and empowering.

CONCLUSIONS

Patients with somatisation disorders feel satisfied and empowered by medical explanations that are tangible, exculpating, and involving. Empowering explanations could improve these patients' wellbeing and help to reduce the high demands they make on health services.

The status of alexithymia as a risk factor in medically unexplained physical symptoms

Some decennia ago, the concept of alexithymia was developed from the clinical experience of psychosomaticians who at the time were largely working within a psychoanalytic frame of reference. Alexithymia can briefly be described as a cognitive-affective disturbance characterized by difficulties in differentiating one's feelings and expressing them in words. Clinicians who treat patients with medically unexplained physical symptoms may often recognize alexithymic features in their patients. It is supposed that alexithymia could be a predisposing factor for the development or persistence of medically unexplained physical symptoms. In this review, the concept of alexithymia as well as paradigmatic shifts in psychoanalysis and psychosomatics are discussed to place the concept of alexithymia in its epistemiological context. Furthermore, the empirical literature on the association between alexithymia and medically unexplained physical symptoms is reviewed. The main conclusions are that alexithymia appears to be a theoretically important and clinically appealing concept, but that so far the empirical evidence that alexithymia predisposes to the development or persistence of medically unexplained physical symptoms is imperfect. This is mainly because of the cross-sectional design of most studies and is due to other methodological shortcomings, such as the lack of allowance for depression and anxiety as possible confounding factors. Suggestions for future research are made.

Patients with medically unexplained symptoms: sources of patients' authority and implications for demands on medical care

Lay and medical beliefs are not separate systems. The beliefs of somatizing patients, in particular, incorporate medical understanding and it has been argued that this increases the power that such patients exert in seeking treatment from doctors. To understand the nature and use of this power requires investigation of (i) how patients use medical ideas and language to explain their symptoms and (ii) how this process influences patients' expectations and evaluations of their doctors. We interviewed 68 patients, in whom no physical cause had been found for persistent physical symptoms. Their accounts of symptoms and of their experience of doctors were subjected to qualitative thematic analysis. As expected, patients used medical terms to explain their symptoms. However, these depicted explanatory themes which have long been familiar in traditional lay models: disease as a malign entity and imbalance between bodily forces. Patients' sense of authority over doctors derived, not from facility with medical language and ideas but from contrasting their own sensory, and therefore infallible, experience of symptoms with doctors' indirect and fallible knowledge. By providing explanations that questioned the reality of symptoms, doctors were perceived as incompetent and inexpert. Patients used their authority, not to seek treatment, but to secure naming of, and collaboration against, the disorder. Although these patients saw the doctors' role as limited and inexpert by comparison with their own, our analysis suggests ways in which doctors might more effectively engage with persistent somatizing patients.