Personality problems are considerably associated with somatic morbidity and health care utilisation

A systematic review of personality and musculoskeletal disorders: evidence from general population studies

Introduction

We conducted a systematic review to evaluate the quality and extent of evidence on associations between personality disorders (PDs) and musculoskeletal disorders (MSDs) in population-based studies, since these disorders are leading causes of disease burden worldwide.

Methods

A search strategy of published, peer-reviewed and gray literature was developed in consultation with a liaison librarian and implemented for Embase, CINAHL Complete, Medline Complete, and PsycINFO via the EBSCOhost platform from 1990 to the present and CORDIS and ProQuest Dissertations & Theses Global, respectively. The inclusion criteria were as follows: I) general population participants aged ≥15 years; II) self-report, probable PD based on positive screen, or threshold PD according to the DSM-IV/5 (groupings: any, Clusters A/B/C, specific PD) or ICD-10/11; III) MSDs identified by self-report or ICD criteria (arthritis, back/neck conditions, fibromyalgia, osteopenia/osteoporosis) and III) cohort, case-control, and cross-sectional study designs. Two reviewers independently screened articles and extracted the data. Critical appraisal was undertaken using the Joanna Briggs Institute checklists for systematic reviews of etiology and risk. A descriptive synthesis presents the characteristics of included studies, critical appraisal results, and descriptions of the main findings. This review adhered to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines.

Results

There were 11 peer-reviewed, published articles included in this review (n = 9 cross-sectional and n = 2 case-control studies); participants were ≥18 years in these studies. No published gray literature was identified. Semi-structured interviews were the most common method to ascertain PDs; all studies utilized self-reported measures to identify MSDs. Overall, we detected limited and conflicting evidence for associations between PDs and MSDs.

Discussion

The main result may be explained by lack of population-based longitudinal evidence, heterogenous groupings of PD, and few comparable cross-sectional and case-control studies. Strengths of the review include a comprehensive search strategy and a discussion of mechanisms underlying possible associations between PDs and MSDs.

Conclusions

The quality of most studies included in this review that examined associations between PD and MSDs in general population adults was high. However, the results demonstrated limited and conflicting evidence for these associations, in part, due to lack of comparable evidence, which should be addressed in future research.

Systematic review registration

https://www.crd.york.ac.uk/prospero/, identifier CRD42021243094.

Exploring the comorbidity between personality and musculoskeletal disorders among adults: A scoping review

INTRODUCTION

There is growing awareness of the comorbidity between mental and musculoskeletal disorders (MSDs) and their associated burden. We aimed to explore what is known regarding the existing epidemiological clinical-and population- based literature on the comorbidity between personality disorders (PDs) and MSDs specifically. In addition, we aimed to investigate their associated burden by examining a range of outcomes including morbidity/mortality, patient- and clinical-reported outcomes, work-related outcomes, hospital admissions, and financial costs. Finally, we sought to identify gaps in the literature and provide recommendations for further research.

METHODS

Studies with participants 15 years of age were eligible. Categorical PDs/features (DSM-III/IV/5 or ICD 9/10), identified by a health care professional, medical records, diagnostic interviews, or self-administered questionnaires. The definitions/groupings of MSDs were guided by the ICD-10 including conditions of the back, joints, and soft tissue, and disorders of bone density and structure. Published peer-reviewed and gray literature were considered. Eligible study designs were cohort, case-control, and cross-sectional studies, and existing reviews of observational studies. Identification and selection of articles, data extraction and the presentation of the results was conducted according to the Joanna Briggs Institute methodological guidance and the PRISMA extension for scoping reviews.

RESULTS

In total, 57 articles were eligible including 10 reviews and 47 individual studies. Across clinical and population settings, we detected evidence of comorbidity between PDs and chronic back/neck/spine conditions, arthritis, and fibromyalgia, and emerging evidence of associations between PDs and reduced bone mineral density. In terms of knowledge gaps, the burden associated with PDs and MSDs is poorly understood, as is their underlying mechanisms.

DISCUSSION

This scoping review might prompt further research into PDs and MSDs as separate groups of disorders, along with their comorbidity and the mechanisms that may link them.

SYSTEMATIC REVIEW REGISTRATION

https://osf.io/mxbr2/registrations.

Investigating the Link Between Pathological Narcissism and Somatization

Although the self-image distortions and sensitivities of pathological narcissism have been theorized to contribute to somatization, limited empirical research has been devoted to this issue. The present study was developed to test the hypothesis that pathological narcissism contributes to somatic symptoms through increased hypervigiliance to physical sensations. A community sample of 248 adults completed measures of pathological narcissism, somatosensory amplification, somatic symptoms, and depression. Mediation analysis was conducted, controlling for depression, using 99% bootstrapped confidence intervals to examine the indirect effect of pathological narcissism on somatic symptoms via somatosensory amplification. Although pathological narcissism was not directly related to somatic symptoms, a significant indirect effect was observed for pathological narcissism on somatic symptoms via somatosensory amplification. This finding suggests that pathological narcissism contributes to physical hypersensitivity, in turn influencing perceptions of somatic distress. The role of narcissistic dysfunction in somatization indicates the importance of further research and potential clinical consideration.

Personality disorder: a disease in disguise

Personality disorders (PDs) can be described as the manifestation of extreme personality traits that interfere with everyday life and contribute to significant suffering, functional limitations, or both. They are common and are frequently encountered in virtually all forms of health care. PDs are associated with an inferior quality of life (QoL), poor health, and premature mortality. The aetiology of PDs is complex and is influenced by genetic and environmental factors. The clinical expression varies between different PD types; the most common and core aspect is related to an inability to build and maintain healthy interpersonal relationships. This aspect has a negative impact on the interaction between health-care professionals and patients with a PD. From being discrete and categorical disease entities in previous classification systems, the current concept of PD, reflected in the newly proposed ICD-11, is a dimensional description based on the severity of the disturbed functioning rather than on the type of clinical presentation. Insight about the characteristics of PDs among medical practitioners is limited, which is partly because persons do not seek health care for their PD, but instead for other medical issues which are obscured by their underlying personality problems. What needs to be emphasized is that PDs affect both the clinical presentation of other medical problems, and the outcome of these, in a negative manner and that the integrated effects of having a PD are a shortened life expectancy. Accordingly, PDs need to be recognized in clinical practice to a greater extent than previously.

Is personality a driving force for socioeconomic differences in young adults' health care use? A prospective cohort study

Objectives

To relate personality characteristics at the age of 12 to socioeconomic differences in health care use in young adulthood. And thereby examining the extent to which socioeconomic differences in the use of health care in young adulthood are based on differences in personality characteristics, independent of the (parental) socioeconomic background.

Methods

Personality of more than 13,000 Dutch 12-year old participants was related to their health and socioeconomic position after a follow-up of 13 years (when the participants had become young adults).

Results

In young adulthood, low socioeconomic status was related to high health care use (e.g. low education -hospital admission: OR = 2.21; low income -GP costs: OR = 1.25). Odds ratios (for the socioeconomic health differences) did not decrease when controlled for personality.

Conclusions

In this Dutch sample of younger people, personality appeared not to be a driving force for socioeconomic differences in health care use. Findings thus do not support the personality-related, indirect selection perspective on the explanation of socioeconomic differences in health.

Is borderline personality disorder only a mental health problem?

Patients with borderline personality disorder (BPD) have been shown to have increased rates of the use of medical services. The objective of this multicentre study was to compare the utilization of physical health services by patients with severe BPD (n = 36) with that of two control groups: one with other personality disorders (PDs) (n = 38) and one with matched subjects randomly selected from the general population (n = 165). Information was drawn from an insurance database collected over a 5-year period. The results showed that the BPD group had a higher mean number of medication prescriptions (377.3 vs. 97.4, p < 0.001), general medical consultations (34.4 vs. 13.2, p < 0.05) and days of medical or surgical hospitalization (10.2 vs. 1.9, p = 0.03). However, there were no significant differences between the groups with BPD and other PDs. The annual health-care cost for each BPD patient is estimated to be 12 761 euros, of which 17.6% is due to somatic care. In the BPD group, co-morbidity for narcissistic PD (NPD) contributed to the overall use of medications and hospitalization use. Combined with other data, this exploratory study shows that BPD is a medical burden and not just a psychiatric one. Copyright © 2016 John Wiley & Sons, Ltd.

Pathological narcissism and somatic symptoms among men and women attending an outpatient mental health clinic

OBJECTIVE

To explore the relationship between types of pathological narcissism and somatic symptoms among psychiatric outpatients.

METHODS

Patients (N = 95) completed measures of somatic symptoms, narcissistic grandiosity and vulnerability, and psychiatric symptoms. Relationships among variables were analysed using t-tests and correlations, controlling for psychiatric distress.

RESULTS

Somatic symptoms were positively associated with two types of narcissistic dysfunction. Among women there was a positive association between somatic symptoms and narcissistic vulnerability, but not grandiosity. Among men, somatic symptoms were positively associated with narcissistic grandiosity, but not vulnerability.

CONCLUSIONS

The connection between narcissistic pathology and somatic symptom severity appears to differ based on gender. Further research is needed to confirm and extend this preliminary finding.

Impact of IPDE-SQ personality disorders on the healthcare and societal costs of fibromyalgia patients: a cross-sectional study

BACKGROUND

Data is lacking on comorbid personality disorders (PD) and fibromyalgia syndrome (FMS) in terms of prevalence, and associated healthcare and societal costs. The main aim of this study was to assess the prevalence of PD in FMS patients and to analyse whether the presence of comorbid PD is related to worse functional impairment and greater healthcare (medical visits, drug consumption, and medical tests) and societal costs.

METHODS

A cross-sectional study was performed using the baseline data of 216 FMS patients participating in a randomized, controlled trial carried out in three primary health care centres situated in the region of Barcelona, Spain. Measurement instruments included the International Personality Disorder Examination - Screening Questionnaire (IPDE-SQ), the Fibromyalgia Impact Questionnaire (FIQ), the Client Service Receipt Inventory (CSRI), and a socio-demographic questionnaire.

RESULTS

Most patients (65 %) had a potential PD according to the IPDE-SQ. The most prevalent PD were the avoidant (41.4 %), obsessive-compulsive (33.1 %), and borderline (27 %). We found statistically significant differences in functional impairment (FIQ scores) between FMS patients with potential PD vs non-PD (59.2 vs 51.1; p < 0.001). Multivariate regression analyses revealed that higher FIQ total scores and the presence of potential PD were related to more healthcare costs (primary and specialised care visits).

CONCLUSIONS

As expected, PD are frequent comorbid conditions in patients with FMS. Our results suggest that the screening of comorbid PD in patients with FMS might be recommendable in order to detect potential frequent attenders to primary and specialised care.

Emerging Comorbidities in Adult Asthma: Risks, Clinical Associations, and Mechanisms

Asthma is a heterogeneous disease with many phenotypes, and age at disease onset is an important factor in separating the phenotypes. Most studies with asthma have been performed in patients being otherwise healthy. However, in real life, comorbid diseases are very common in adult patients. We review here the emerging comorbid conditions to asthma such as obesity, metabolic syndrome, diabetes mellitus type 2 (DM2), and cardiac and psychiatric diseases. Their role as risk factors for incident asthma and whether they affect clinical asthma are evaluated. Obesity, independently or as a part of metabolic syndrome, DM2, and depression are risk factors for incident asthma. In contrast, the effects of comorbidities on clinical asthma are less well-known and mostly studies are lacking. Cross-sectional studies in obese asthmatics suggest that they may have less well controlled asthma and worse lung function. However, no long-term clinical follow-up studies with these comorbidities and asthma were identified. These emerging comorbidities often occur in the same multimorbid adult patient and may have in common metabolic pathways and inflammatory or other alterations such as early life exposures, systemic inflammation, inflammasome, adipokines, hyperglycemia, hyperinsulinemia, lung mechanics, mitochondrial dysfunction, disturbed nitric oxide metabolism, and leukotrienes.

A Systematic Review of Personality Disorders and Health Outcomes

Personality disorders have been associated with a wide swath of adverse health outcomes and correspondingly high costs to healthcare systems. To date, however, there has not been a systematic review of the literature on health conditions among individuals with personality disorders. The primary aim of this article is to review research documenting the associations between personality disorders and health conditions. A systematic review of the literature revealed 78 unique empirical English-language peer-reviewed articles examining the association of personality disorders and health outcomes over the past 15 years. Specifically, we reviewed research examining the association of personality disorders with sleep disturbance, obesity, pain conditions, and other chronic health conditions. In addition, we evaluated research on candidate mechanisms underlying health problems in personality disorders and potential treatments for such disorders. Results underscore numerous deleterious health outcomes associated with PD features and PD diagnoses, and suggest potential biological and behavioural factors that may account for these relations. Guidelines for future research in this area are discussed.

Personality disorders in consultation-liaison psychiatry

PURPOSE OF REVIEW

Liaison psychiatrists treat patients who present with self-harm, with medically unexplained symptoms (MUSs) and physical illnesses with psychological comorbidity. We sought to explore recent studies into the impact of personality disorder in liaison psychiatry.

RECENT FINDINGS

One in five patients presenting to most liaison psychiatry services suffers from a personality disorder. Patients who have self-harmed have a high rate of personality disorder, but there is little research on how liaison psychiatrists can engage these patients in appropriate treatments. Most patients with MUSs or a functional somatic syndrome do not have a personality disorder, but the prevalence is probably higher than in the general population. Little is known about how a personality disorder might affect the efficacy of treatment in these conditions. Patients with personality disorders have higher rates of physical illness. Personality disorders may complicate the treatment of patients with long-term physical conditions, and talking therapies have recently been described in primary and secondary care.

SUMMARY

Liaison psychiatrists have an ideal therapeutic opportunity to engage patients with a personality disorder in treatment when these patients present with self-harm. There is a need to understand and research how personality disorders might affect the prognosis and treatment of patients with MUSs or a functional somatic syndrome. Personality disorders may complicate the treatment of patients with long-term physical conditions, and talking therapies recently described in primary and secondary care may help their physical and psychological health.

Avoidant personality problems--their association with somatic and mental health, lifestyle, and social network. A community-based study

AIM

The aim of the study was to explore the associations between the presence of avoidant personality problems (APPs) and 5 areas of impairment: demography, somatic issues, mental health, lifestyle, and social issues.

METHODS

Avoidant personality problem was defined by confirmation of the 2 avoidant personality disorder items of the Iowa Personality Disorder Screen and and the Social Phobia Inventory (SPIN) short version (MINI-SPIN) screening assessment for generalized social anxiety disorder sum score of 6 or more. The questionnaires were administered in a Norwegian population survey (the Oslo Health Study-HUBRO). Cases consisted of 280 individuals with APP and 5 randomly selected controls without APP (n = 1400).

RESULTS

The APP group more frequently reported living alone, lower level of education, and lower income than controls. Poor self-rated health, presence of somatic disease, muscular pain, frequent use of analgesics, and visits at a general practitioner were significantly more common in the APP group than among controls. The APP group had significantly higher proportion of caseness of mental distress, low general self-efficacy, and insomnia, and this result held up in multivariate analyses. The APP group showed statistically significant higher proportions of physical inactivity, obesity, daily smoking, and alcohol problems compared with controls. As for social impairment, a significantly higher proportion of the APP group reported "not having enough good friends," "high powerlessness," and low community activism, and the 2 former variables held up in multivariate analyses.

CONCLUSION

In this population-based study, we found that high levels of APP, defined closely to avoidant personality disorder, were significantly associated with demographic, somatic, and mental impairment; low general self-efficacy; and insomnia affecting work ability. In addition, APP showed associations with negative lifestyle, alcohol problems, and social impairment reporting lack of good friends and lack of empowerment. Avoidant personality problem is associated with clinically significant impairment in several areas, which underlines the importance of recognizing these problems in primary health care.

The influence of personality disorders on the use of mental health services in adolescents with psychiatric disorders

OBJECTIVE

The aims of this study were to explore the influence of personality disorders (PDs) in Spanish adolescents with Axis I psychiatric disorders on their use of mental health services and to analyze the risk of having a comorbid PD in relation to psychiatric service use.

METHODS

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) and International Classification of Diseases, Tenth Revision (ICD-10) modules of the semistructured interview International Personality Disorders Examination were administered to a sample of 112 adolescent psychiatric patients (mean age = 15.8 years; SD, 0.8; range, 15-17; 79% women) at the point of initiating treatment. On the basis of the interview, subjects were divided into two groups: a PD group (PDG) and a non-PD group (NPDG). After 3 years of treatment, clinical records were retrospectively analyzed.

RESULTS

The PDG showed a significantly higher number of psychiatric admissions (P < .001), days per psychiatric admission (P < .001), and psychiatric emergencies (P < .010) than the NPDG, although the number of outpatient consultations was not significantly higher. Logistic regression analysis showed that the probability of belonging to the PDG rather than the NPDG increased with each psychiatric admission (odds ratio [OR] = 1.67 for DSM-IV criteria and OR = 1.59 for ICD-10 criteria), after controlling by sex, age, and comorbidity (Axis I disorders).

CONCLUSIONS

Patients with comorbid PD used more inpatient and emergency psychiatric services than did patients without a PD. Large number of psychiatric hospitalizations suggests the likelihood of a PD being present.

A cross-sectional testing of The Iowa Personality Disorder Screen in a psychiatric outpatient setting

BACKGROUND

Patients suspected of personality disorders (PDs) by general practitioners are frequently referred to psychiatric outpatient clinics (POCs). In that setting an effective screening instrument for PDs would be helpful due to resource constraints. This study evaluates the properties of The Iowa Personality Disorder Screen (IPDS) as a screening instrument for PDs at a POC.

METHODS

In a cross-sectional design 145 patients filled in the IPDS and were examined with the SCID-II interview as reference. Various case-findings properties were tested, interference of socio-demographic and other psychopathology were investigated by logistic regression and relationships of the IPDS and the concept of PDs were studied by a latent variable path analysis.

RESULTS

We found that socio-demographic and psychopathological factors hardly disturbed the IPDS as screening instrument. With a cut-off ≥4 the 11 items IPDS version had sensitivity 0.77 and specificity 0.71. A brief 5 items version showed sensitivity 0.82 and specificity 0.74 with cut-off ≥ 2. With exception for one item, the IPDS variables loaded adequately on their respective first order variables, and the five first order variables loaded in general adequately on their second order variable.

CONCLUSION

Our results support the IPDS as a useful screening instrument for PDs present or absent in the POC setting.