Although comorbidity among complex diseases (e.g., drug dependence syndromes) is well documented, genetic variants contributing to the comorbidity are still largely unknown. The discovery of genetic variants and their interactions contributing to comorbidity will likely shed light on underlying pathophysiological and etiological processes, and promote effective treatments for comorbid condition...

Generalized anxiety disorder (GAD) has a high rate of comorbidity with other psychiatric disorders, including major depressive disorder (MDD), bipolar disorder, other anxiety disorders, and substance use disorders. The similarities between GAD and MDD have led some to suggest that GAD should be reclassified as a mood disorder. The concurrence of GAD with another disorder heightens a patient's r...

Numerous epidemiological and clinical studies found a high incidence of comorbidity in children and adolescent psychiatry. In population of children and adolescents is most often described and researched comorbidity of depression, anxiety disorders, than in hyperkinetic and behavioral disorders, and finally the difficulty in reading (dyslexia) and antisocial behavior disorders. The common occur...

Comorbidity and multimorbidity represent one of the greatest chalenge to academic medicine. Many disorders are often comorbidly expressed in diverse combinations. In clinical practice comorbidity and multimorbidity are underrecognized, underdiagnosed, underestimated and undertreated. So that one can speak about comorbidity and multimorbidity anosognosia. Comorbidities and multimorbidities are i...

BACKGROUND Haemodialysis patients are ageing and have with a high rate of comorbidities. The impact of this novel clinical setting on intact parathyroid hormone (iPTH) is not well established. METHODS For this observational, prospective multicentre cohort study, incident haemodialysis patients were recruited in 40 Italian centres and followed up for a mean period of 18 +/- 6.7 months. Clinica...

BACKGROUND Heteroresistant vancomycin-intermediate Staphylococcus aureus (hVISA) infections are emerging, but their clinical significance remains unclear. Our objective was to compare patients who had hVISA bacteremia with patients who had methicillin-resistant S. aureus (MRSA) bacteremia. METHODS A total of 27 case patients with hVISA bacteremia were compared with 223 control patients with M...

Comorbidity, the association of two disorders, occurs commonly with complex diseases. In this paper, we investigate the effects of both true (within-family) comorbidity and spurious comorbidity due to ascertainment bias on the validity of both the parental and sibling control transmission/disequilibrium test. Specifically, we consider settings in which a candidate gene is unlinked to the target...

Comorbidity in rheumatoid arthritis (RA) patients significantly impairs and limits management of primary disease, decreases general quality of life, and worsens outcomes. Cardiovascular comorbidity is the leading cause of excess mortality in RA patients, which is up to two times higher compared to the general population. Infections, pulmonary disease and malignant diseases also contribute to ex...

Published rates of comorbidity between pediatric bipolar disorder (PBD) and attention-deficit/hyperactivity disorder (ADHD) have been higher than would be expected if they were independent conditions, but also dramatically different across different studies. This review examines processes that could artificially create the appearance of comorbidity or substantially bias estimates of the ADHD-BP...

PURPOSE Socioeconomic inequality in return to work after cancer treatment and rehabilitation have been documented, but less is known about its causes. This paper investigates the role played by breast cancer stage at diagnosis and comorbidity. METHODS We used the comprehensive Danish Cancer Registry to follow 7372 women aged 30-60, who were in the labour force when diagnosed with breast cance...