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Psychiatric Comorbidity

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lightbulbAbout this topic
Psychiatric comorbidity refers to the co-occurrence of two or more psychiatric disorders in an individual, which can complicate diagnosis, treatment, and overall prognosis. It highlights the interplay between different mental health conditions and their combined impact on a person's functioning and well-being.
lightbulbAbout this topic
Psychiatric comorbidity refers to the co-occurrence of two or more psychiatric disorders in an individual, which can complicate diagnosis, treatment, and overall prognosis. It highlights the interplay between different mental health conditions and their combined impact on a person's functioning and well-being.

Key research themes

1. How do mental disorders influence the risk and trajectory of chronic physical conditions?

This theme investigates the temporal and causal associations between various diagnosed mental disorders and the subsequent onset or diagnosis of multiple chronic physical illnesses. Understanding these relationships informs clinical strategies for integrative care, aiming to prevent physical health deterioration among individuals with mental health conditions and reduce premature mortality.

Key finding: Using retrospective survival analyses across 47,609 adults from 17 countries, the study found robust associations between 16 temporally prior DSM-IV mental disorders and the subsequent onset of 10 chronic physical conditions,... Read more
Key finding: Analyzing a Danish national cohort of over 5.9 million persons, this study demonstrated that persons diagnosed with mental disorders had significantly increased hazard ratios (median HR=1.37) for 76 of 90 mental... Read more
Key finding: This review synthesizes evidence demonstrating that severe mental disorders (e.g., schizophrenia, major depression, bipolar disorder) markedly decrease life expectancy by 10–25 years due to high rates of physical comorbid... Read more
Key finding: In a retrospective audit of 165 psychogeriatric inpatients, the study found that 91.5% had at least one medical comorbidity, with prevalent conditions including cardiovascular, neurological, respiratory, and endocrine... Read more
Key finding: This cross-sectional study of 506 psychiatric patients found that somatic comorbidities independently predicted poor health-related quality of life (HRQoL), even after adjusting for sociodemographic and clinical factors. The... Read more

2. What patterns and risks characterize comorbidity within mental disorders across populations?

Research in this theme focuses on the prevalence, temporal ordering, and interplay of co-occurring mental disorders, analyzing how initial diagnoses increase vulnerability to subsequent disorders. It addresses methodological challenges such as diagnostic overlap, absolute versus relative risks, and provides detailed epidemiological profiles informing risk prediction, treatment planning, and health policy.

Key finding: Using registry data from all individuals born in Denmark between 1900 and 2015 (N≈5.9 million), this comprehensive study quantified pairwise, age- and sex-specific temporally ordered hazard ratios for comorbidity among major... Read more
Key finding: Examining 539 primary care patients with anxiety disorders diagnosed by SCID-IV, the study documented over 60% had multiple anxiety disorders and over 70% had more than one current Axis I diagnosis, with major depression... Read more
Key finding: Using data from Singapore's national mental health surveys (2010, 2016), this study documented increasing prevalence of both homotypic and heterotypic psychiatric comorbidities in a multiethnic urban community. Major... Read more
Key finding: In this cross-sectional Indian clinical sample of 60 depressed patients, 65% had psychiatric comorbidities, most commonly generalized anxiety disorder (53.3%), suicidality (23.3%), and panic disorders (11.7%). Associations... Read more
Key finding: This conceptual analysis critiques the widespread psychiatric comorbidity concept, highlighting its inadequate definitional clarity, diagnostic overlap, and risk of reification of mental disorders. It argues that many... Read more

3. How do pre-existing mental disorders and their clusters affect clinical outcomes in acute health crises like COVID-19 and psychosis risk states?

This theme explores the impact of pre-existing mental disorders—considering diagnostic clusters such as internalizing, externalizing, and thought disorders—and their co-occurrence on acute clinical outcomes, including COVID-19 severity and psychosis progression. Identifying these relationships informs risk stratification and tailored interventions in pandemics and early psychosis clinical care.

Key finding: Leveraging electronic health records of 476,775 COVID-19 patients in South Carolina, this retrospective cohort found that patients with pre-existing mental disorder clusters (internalizing, externalizing, thought disorders)... Read more
Key finding: This large-scale study confirmed that specific pre-existing mental disorder clusters independently increased the risk of severe COVID-19 outcomes. Additionally, the co-occurrence of clusters was shown to have synergistic... Read more
Key finding: In a clinical cohort of drug-resistant focal epilepsy patients, 61.6% had co-occurring psychiatric disorders, predominantly depression, which were associated with elevated impulsivity levels. These findings suggest... Read more
Key finding: This systematic meta-analysis of 312 studies (N=7,834 CHR-P individuals) quantified a 78% baseline prevalence of any comorbid mental disorder, and reported that comorbidities persist longitudinally while broadly influencing... Read more

All papers in Psychiatric Comorbidity

Lignocelulitic compounds have a high content of fermentable material, are renewable and have a net Co 2 emission close to 0 and as such a good alternative towards energy security, unstable prices and contamination from fossil fuels.... more
Objective: This study was conducted in post stroke patients to assess the prevalence of depression and its correlation with anxiety , to give an account of patients experience between self and others and to generate a data for clinicians... more
Background: Headache is one of the most common neurological symptom that we come across, but very few well-planned studies have been conducted to know its psychiatric aspects .The aim of the study was to investigate the socio demographic... more
The rate of dependence among ever-users of a drug indicates the risk of developing dependence once an individual has been exposed to the drug. This is the first study to investigate 12-month tobacco dependence (TD) among ever-smokers in a... more
The rate of dependence among ever-users of a drug indicates the risk of developing dependence once an individual has been exposed to the drug. This is the first study to investigate 12-month tobacco dependence (TD) among ever-smokers in a... more
BackgroundObsessive-compulsive disorder (OCD) and tic disorder (TD) represent highly disabling, chronic and often comorbid psychiatric conditions. While recent studies showed a high risk of suicide for patients with OCD, little is known... more
Чувашский государственный университет им. и.н. ульянова», Чебоксары; 2 университет Тромсе, Тромсе, норвегия; 3 университетская клиника Северной норвегии, Тромсе, норвегия; 4 Больница нурланда, Будё, норвегия Приведено описание... more
The patterns of comorbidity among mental disorders have led researchers to model the underlying structure of psychopathology. While studies have suggested a structure including internalizing and externalizing disorders, less is known with... more
Il DSM-5, include per la prima volta il Disturbo da Gioco d'Azzardo (DGA) nel capitolo dei Disturbi Correlati a Sostanze e Disturbi da Addiction. Tale riclassificazione ha definitivamente validato un cambiamento nell'approccio... more
Multiple psychiatric patients are prescribed long-term drug treatment of Psychotropic agents, and the anesthesiologist must be aware of the potential interactions with anesthetic drugs. Psychotropic drugs often given in combination with... more
Psychiatric patients are at increased risk for perioperative complications, as their biological response to stress is impaired. The increased complications are associated with physical disorders, antipsychotic or hazardous health... more
Background Individuals who have substance use disorders may have an elevated risk of suicidality. This study sought to examine the prevalence of, and identify factors associated with, suicidality in adults with opioid use disorder (OUD)... more
Background: Headache is one of the most common neurological symptom that we come across, but very few well-planned studies have been conducted to know its psychiatric aspects .The aim of the study was to investigate the socio demographic... more
Moyamoya disease (MMD) is a rare entity. It is a chronic cerebrovascular pathology characterized by stenosis and progressive occlusion of the termination of the carotid arteries. It is of reserved prognosis. Its diagnosis can be evoked on... more
El presente artículo ofrece una revisión exhaustiva del enfoque transdiagnóstico en psicoterapia clínica, una perspectiva emergente que propone intervenir sobre procesos psicológicos comunes a múltiples trastornos, desafiando así el... more
This study established the prevalence of physical and psychiatric comorbidity and associated risk factors among 1,201 out-patients with severe mental illness (SMI) attending Butabika and Masaka hospitals in Uganda. Participants completed... more
INTRODUCTION: Chronic kidney disease is emerging as an important public health problem given its magnitude as well as the costs involved as it can be recognised only in the later stages of the disease. Hence it is necessary to identify... more
INTRODUCTION: Chronic kidney disease is emerging as an important public health problem given its magnitude as well as the costs involved as it can be recognised only in the later stages of the disease. Hence it is necessary to identify... more
Introduction: Stigma is defined as a set of negative attitudes and beliefs toward specific conditions, such as mental disorders. Mental disorders are among the most stigmatizing conditions throughout the world. In general, the principle... more
Objective: The aim of this study was to compare the long-term outcomes of treatment-resistant heroin addicts with and without DSM-IV axis I psychiatric comorbidity (dual diagnosis). Method: 129 heroin addicts who also met criteria for... more
Several studies reported that in non-psychiatric hospital departments mentally ill patients have a longer length of hospital stay than mentally well. But their methods are often limited because other predictors of length of stay were... more
The purpose of this study was to assess the efficacy and safety of levetiracetam monotherapy in a pediatric population. A retrospective review was performed of the charts of 351 consecutive children who were 6 months to 18 years of age... more
Background The association between vitamin D3 levels and quality of life (QoL) in people with epilepsy on long-term antiseizure medications is an area of ongoing research. This study aims to assess serum vitamin D3 levels in people with... more
This report empirically examines multiple explanations for the high rates of psychiatric comorbidity seen with posttraumatic stress disorder (PTSD). One hundred sixty-two St. Louis area survivors of the 1993 Great Midwest Floods were... more
Delusional misidentification syndromes may be superimposed on neurological or psychiatric disorders and include delusional beliefs that the people, objects, or places around the patient change or are made to change with one another. In... more
Artificial Intelligence and Mental Health: A Synergistic Future is a pioneering exploration of how AI technologies can transform the mental health landscape. Written by Alishba Eman, a verified young researcher and medical student, this... more
Objective: Our objective was to assess the prevalence of accompanying symptoms of migraine and tension-type headache in patients with such conditions (both episodic and chronic) and in headache-free controls, and their relationship with... more
Psychiatric comorbidity can negatively impact the course of addictions. Psychiatric features of patients who continued treatment after the first stage of an addiction program have not been sufficiently analysed. Therefore, only these... more
There is a relationship between smoking and some psychiatric disorders, and there is doubt whether antismoking treatment will be more complex because of psychiatric disorder. To analyze the differences in treatment success rates among... more
Background: Positive self-esteem is considered to be an important attribute of a mentally healthy person, as it is believed to impact healthy social behavior. Similarly, poor self-esteem may be associated with individual and social... more
Objective. Comorbidities between psychiatric diseases and consumption of traditional substances of abuse (alcohol, cannabis, opioids, and cocaine) are common. Nevertheless, there is no data regarding the use of novel psychoactive... more
Discrepancies between the results of our analyses pertaining to abortion and mental health and the analyses of another researcher were recently brought to the attention of the JPR Editor, Dr. Alan Schatzberg, After consultation with the... more
Psychiatric comorbidity, the presence of two or more mental health disorders, has been associated with suboptimal HIV treatment outcomes. Little is known about the prevalence of psychiatric comorbidity among people with HIV (PWH) in... more
The purpose of the study was to examine psychopathological traits and psychiatric co-morbidities in seekers of cosmetic rhinoplasty. Subjects and Method: Fifty persons seeking cosmetic rhinoplasty and 50 control subjects were admitted to... more
Aim: To determine the psychiatric symptom assesment of patients seeking treatment for irritable bowel syndrome (IBS) and to demonstrate the presence of more complicated psychiatric disorders. Subjects and Method: The participants were... more
A mu&enter study was carried out in 10 Italian Headache Centers to investigate the prevalence of psychosociaI stress and psychiatric disorders listed by the II-IS classification as the "most likely causative factors" of tension-type... more
The aim of the present study was to examine if patients' expectancy after bariatric surgery was related to improvement of body appearance, health, physical fitness, or ability to work. Further, the relationship between psychiatric... more
Little is known about the effects of age on the clinical presentation of alcoholism in various treatment settings, despite the clinical importance of this factor. This study evaluates the effect of age on the clinical profile of 604... more
artery IMT .They were compaired due to vascular risk factors, clinical, demographic and radiological variables. Statistical evaluation was perform by SPS Results: From 85 PSL patients dementia was diagnosed in13(15,2%). cases ,depression... more
Migraine with juvenile onset changes over time. The existence of prognostic factors is a point of focus. A strict relationship between migraine or tension-type headache (TIH) and psychiatric factors has been suggested, but the exact role... more
Background: Mastalgia defines pain that is located in or felt in the breast area. Pain can be a symptom in many psychiatric disorders. Therefore, considering the psychiatric disorders in the evaluation of patients with mastalgia is of... more
Purpose: To analyze patients with clearly and de ned focal epilepsy from temporal (ELT) and extra-temporal lobe origin (ETE), and a control group, and to compare the prevalence of psychiatric comorbid disorders and the levels of... more
Objective: To examine the somatic complaints, functional impairment, and psychiatric comorbidity in elderly patients with medically unexplained symptoms (MUSs). Method: A consecutive case series of 37 patients referred for MUS to a... more
To examine the somatic complaints, functional impairment, and psychiatric comorbidity in elderly patients with medically unexplained symptoms (MUSs). A consecutive case series of 37 patients referred for MUS to a multidisciplinary,... more
Background: Nationally representative data from Mexico are presented on the lifetime and 12-month prevalence of the onset of suicide ideation, suicide plans and suicide attempt, as well as associated DSM-IV psychiatric disorders and... more
Background: Many children world over end up having tussles with the legal systems and coming under their purview results in them facing challenges which negatively impact their psyche. Materials and methods: It was a retrospective study... more
Uma série de resultados tem demonstrado que ratos manipulados no período neonatal apresentam alterações comportamentais que parecem envolver a ativação das vias serotonérgicas (Meaney, 1994). A hipótese do presente trabalho é que a... more
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