Peter De Jonge

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BACKGROUND It has recently been proposed that major depression disorder (MDD) may, in a heterogeneous population-based cohort, be interpreted in terms of a random-mood model. Mood fluctuations are thought to result from stressors that occur randomly in time. We have investigated whether this concept also holds for more homogeneous groups, defined by known(More)
OBJECTIVE The objective of this study is to validate the eight-item dichotomised version of the Symptoms Check List (SCL-8d) as a screening tool for psychiatric disorders. METHODS The study population included 198 consecutive new neurological inpatients and outpatients and 294 consecutive internal medical inpatients, aged 18 or older. All patients(More)
OBJECTIVE Mental illness is prevalent among general hospital ward patients but often goes unrecognised. The aim of this study was to validate the SCL-8d as a brief questionnaire for mental disturbances for use in general hospitals. METHODS The study included 2040 patients, 18 years or older, consecutively admitted to 11 general internal medicine wards in(More)
BACKGROUND In a context of increasing concern for complex care needs in medical patients, this study is intended to document the utility in pneumology patients of INTERMED, a reliable and valid instrument to assess case complexity at the time of hospital admission. METHODS Three hundred and fifteen consecutive patients were assessed at hospital admission(More)
HowNutsAreTheDutch (Dutch: HoeGekIsNL) is a national crowdsourcing study designed to investigate multiple continuous mental health dimensions in a sample from the general population (n = 12,503). Its main objective is to create an empirically based representation of mental strengths and vulnerabilities, accounting for (i) dimensionality and heterogeneity,(More)
Urinary tract symptoms and, particularly, urinary incontinence are often chronic and complex conditions that cause diagnosis, treatment, and management problems. In many cases, psychosocial factors contribute to the development of a chronic condition. The authors investigated whether INTERMED, an instrument for assessing case complexity and health care(More)
Observed associations between depression following myocardial infarction (MI) and adverse cardiac outcomes could be overestimated due to patients' tendency to over report somatic depressive symptoms. This study was aimed to investigate this issue with modern psychometrics, using item response theory (IRT) and person-fit statistics to investigate if the Beck(More)
OBJECTIVES To examine the role of religious advisors in mental health care (MHC) according to disorder severity, socio-demographics, religious involvement and country income groups. METHODS Face to face household surveys in ten high income (HI), six upper-middle income (UMI) and five low/lower-middle (LLMI) income countries totalling 101,258 adults(More)
Computational capacity and memory are limiting factors when simulating large numbers of robots with complex bodies: available physics engines struggle to handle more than a couple of dozens of complex robot bodies. This limits the possibilities of investigating the evolution of robot morphology to small populations with few generations. We present a method(More)
In psychiatry, comorbidity is the rule rather than the exception. Up to 45% of all patients are classified as having more than one psychiatric disorder. These high rates of comorbidity have led to a debate concerning the interpretation of this phenomenon. Some authors emphasize the problematic character of the high rates of comorbidity because they indicate(More)
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