Helene Andrea

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This article describes a series of studies involving 2,730 participants on the development and validity testing of the Severity Indices of Personality Problems (SIPP), a self-report questionnaire covering important core components of (mal)adaptive personality functioning. Results show that the 16 facets constituted homogeneous item clusters (i.e.,(More)
AIMS To determine whether psychosocial work environment and indicators of health problems are prospectively related to incident long term sickness absence in employees who visited the occupational physician (OP) and/or general practitioner (GP) in relation to work. METHODS The baseline measurement (May 1998) of the Maastricht Cohort Study, a prospective(More)
BACKGROUND Randomized controlled trials are considered the best scientific proof of effectiveness. There is increasing concern, though, about their feasibility in psychotherapy research. We discuss a quasi-experimental study design for situations in which a randomized controlled trial is not feasible. Here, as an alternative strategy, the propensity score(More)
Psychoanalytically oriented day hospital therapy, later manualized and named mentalization-based treatment (MBT), has proven to be a (cost-) effective treatment for patients with severe borderline personality disorder and a high degree of psychiatric comorbidity (BPD) in the United Kingdom (UK). As to yet it has not been shown whether manualized day(More)
BACKGROUND While psychopharmacological studies are common in patients with cluster A personality disorders, the effects of psychotherapy have received little attention. The aim of this study is to explore whether psychotherapeutic treatment yields health gains for these patients. METHODS The study was conducted between March 2003 and June 2008 in 6 mental(More)
A short form of the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ), called the DAPP-SF, is presented, consisting of 136 of the original 290 items. It was established in a community sample that the factor structure of the DAPP-SF is highly congruent with the structure of the DAPP-BQ. The 18 DAPP-SF scales, which were found to(More)
OBJECTIVES To examine how health problems and psychosocial work characteristics are associated with having visited or not having visited the general practitioner (GP) in relation to work. METHODS Baseline self-reported data of the Maastricht Cohort Study about fatigue at work were used to gather information about fatigue (Checklist Individual Strength),(More)
BACKGROUND AND OBJECTIVE The propensity score method (PS) has proven to be an effective tool to reduce bias in nonrandomized studies, especially when the number of (potential) confounders is large and dimensionality problems arise. The PS method introduced by Rosenbaum and Rubin is described in detail for studies with 2 treatment options. Since in clinical(More)
BACKGROUND No previous studies have compared the effectiveness of different modalities of psychotherapeutic treatment, as defined by different settings and durations, for patients with cluster C personality disorders. The aim of this multicentre study was to compare the effectiveness of 5 treatment modalities for patients with cluster C personality(More)
BACKGROUND For patients with cluster B personality disorders there is no consensus regarding the optimal treatment setting. The aim of this study was to compare the effectiveness of different psychotherapeutic settings for patients with cluster B personality disorders, i.e. outpatient, day hospital, and inpatient treatment. METHODS The study was conducted(More)