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Dive into the research topics where Frederike Jörg is active.

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Featured researches published by Frederike Jörg.


Acta Psychiatrica Scandinavica | 2013

Exercise therapy improves mental and physical health in schizophrenia: a randomised controlled trial

T. W. Scheewe; F. J. G. Backx; T. Takken; Frederike Jörg; A. C. P. van Strater; A. G. Kroes; René S. Kahn; W. Cahn

The objective of this multicenter randomised clinical trial was to examine the effect of exercise versus occupational therapy on mental and physical health in schizophrenia patients.


BMC Medical Research Methodology | 2012

Benefits of extensive recruitment effort persist during follow-ups and are consistent across age group and survey method. The TRAILS study

Esther Nederhof; Frederike Jörg; Dennis Raven; René Veenstra; Frank C. Verhulst; Johan Ormel; Albertine J. Oldehinkel

BackgroundExtensive recruitment effort at baseline increases representativeness of study populations by decreasing non-response and associated bias. First, it is not known to what extent increased attrition occurs during subsequent measurement waves among subjects who were hard-to-recruit at baseline and what characteristics the hard-to-recruit dropouts have compared to the hard-to-recruit retainers. Second, it is unknown whether characteristics of hard-to-recruit responders in a prospective population based cohort study are similar across age group and survey method.MethodsFirst, we compared first wave (T1) easy-to-recruit with hard-to-recruit responders of the TRacking Adolescents’ Individual Lives Survey (TRAILS), a prospective population based cohort study of Dutch (pre)adolescents (at first wave: n = 2230, mean age = 11.09 (SD 0.56), 50.8% girls), with regard to response rates at subsequent measurement waves. Second, easy-to-recruit and hard-to-recruit participants at the fourth TRAILS measurement wave (n = 1881, mean age = 19.1 (SD 0.60), 52.3% girls) were compared with fourth wave non-responders and earlier stage drop-outs on family composition, socioeconomic position (SEP), intelligence (IQ), education, sociometric status, substance use, and psychopathology.ResultsFirst, over 60% of the hard-to-recruit responders at the first wave were retained in the sample eight years later at the fourth measurement wave. Hard-to-recruit dropouts did not differ from hard-to-recruit retainers. Second, extensive recruitment efforts for the web based survey convinced a population of nineteen year olds with similar characteristics as the hard-to-recruit eleven year olds that were persuaded to participate in a school-based survey. Some characteristics associated with being hard-to-recruit (as compared to being easy-to-recruit) were more pronounced among non-responders, resembling the baseline situation (De Winter et al.2005).ConclusionsFirst, extensive recruitment effort at the first assessment wave of a prospective population based cohort study has long lasting positive effects. Second, characteristics of hard-to-recruit responders are largely consistent across age groups and survey methods.


PLOS ONE | 2014

The effects of lifestyle interventions on (long-term) weight management, cardiometabolic risk and depressive symptoms in people with psychotic disorders: a meta-analysis.

Jojanneke Bruins; Frederike Jörg; Richard Bruggeman; Cees J. Slooff; Eva Corpeleijn; Marieke Pijnenborg

Aims The aim of this study was to estimate the effects of lifestyle interventions on bodyweight and other cardiometabolic risk factors in people with psychotic disorders. Additionally, the long-term effects on body weight and the effects on depressive symptoms were examined. Material and Methods We searched four databases for randomized controlled trials (RCTs) that compared lifestyle interventions to control conditions in patients with psychotic disorders. Lifestyle interventions were aimed at weight loss or weight gain prevention, and the study outcomes included bodyweight or metabolic parameters. Results The search resulted in 25 RCTs -only 4 were considered high quality- showing an overall effect of lifestyle interventions on bodyweight (effect size (ES) = −0.63, p<0.0001). Lifestyle interventions were effective in both weight loss (ES = −0.52, p<0.0001) and weight-gain-prevention (ES = −0.84, p = 0.0002). There were significant long-term effects, two to six months post-intervention, for both weight-gain-prevention interventions (ES = −0.85, p = 0.0002) and weight loss studies (ES = −0.46, p = 0.02). Up to ten studies reported on cardiometabolic risk factors and showed that lifestyle interventions led to significant improvements in waist circumference, triglycerides, fasting glucose and insulin. No significant effects were found for blood pressure and cholesterol levels. Four studies reported on depressive symptoms and showed a significant effect (ES = −0.95, p = 0.05). Conclusion Lifestyle interventions are effective in treating and preventing obesity, and in reducing cardiometabolic risk factors. However, the quality of the studies leaves much to be desired.


Journal of Psychopharmacology | 2016

Cannabis use in people with severe mental illness: The association with physical and mental health – a cohort study. A Pharmacotherapy Monitoring and Outcome Survey study

Jojanneke Bruins; Marieke Ghm Pijnenborg; Agna A. Bartels-Velthuis; Ellen Visser; Edwin R. van den Heuvel; Richard Bruggeman; Frederike Jörg

Objective: In the general population cannabis use is associated with better cardiometabolic outcomes. Patients with severe mental illness frequently use cannabis, but also present increased cardiometabolic risk factors. We explore the association between cannabis use and cardiometabolic risk factors in patients with severe mental illness. Method: A total of 3169 patients with severe mental illness from a Dutch cohort were included in the study. The association of cannabis use with body mass index, waist circumference, blood pressure, cholesterol, triglycerides, glucose, glycated hemoglobin and Positive and Negative Syndrome Scale was examined with separate univariate AN(C)OVA. Changes in metabolic risk factors and Positive and Negative Syndrome Scale were examined after a follow-up interval of 9–24 months, for patients who continued, discontinued, started or were never using cannabis between the two assessments. Results: Cannabis users at baseline had lower body mass index, smaller waist circumference, lower diastolic blood pressure, and more severe psychotic symptoms than non-users. Patients who discontinued their cannabis use after the first assessment had a greater increase in body mass index, waist circumference, diastolic blood pressure and triglyceride concentrations than other patients, and the severity of their psychotic symptoms had decreased more compared to continued users and non-users. Conclusion: Extra attention should be paid to the monitoring and treatment of metabolic parameters in patients who discontinue their cannabis use.


Journal of Aging and Health | 2006

Variation in Long-Term Care Needs Assessors’ Willingness to Support Clients’ Requests for Admission to a Residential Home A Vignette Study

Frederike Jörg; Natacha Borgers; Augustinus J.P. Schrijvers; Joop J. Hox

Objectives: The purpose of this study is to determine what client, needs assessor, and agency factors explain variation in decision making by long-term care needs assessors concerning clients requesting admission to a residential home. Method: Hypothetical case vignettes were sent to needs assessors allocating services for the elderly. Multilevel logistic regression analysis provided random and fixed effects. Results: The authors found random effects of the level of needs assessors are negligible, of the level of agencies small though statistically significant, clients receiving largest relative share of the variance. The amount of care already present appeared most important in the decision. Needs assessors were willing to support their clients’ wishes only when they were clearly motivated. Policy implications considering the tension between clients’ preferences and equity are discussed.


British Journal of Psychiatry | 2017

Changing the obesogenic environment to improve cardiometabolic health in residential patients with a severe mental illness: Cluster randomised controlled trial

Anne Looijmans; Annemarie P. M. Stiekema; Richard Bruggeman; Lisette van der Meer; Ronald P. Stolk; Robert A. Schoevers; Frederike Jörg; Eva Corpeleijn

BackgroundFor patients with severe mental illness (SMI) in residential facilities, adopting a healthy lifestyle is hampered by the obesity promoting (obesogenic) environment.AimsTo determine the effectiveness of a 12-month lifestyle intervention addressing the obesogenic environment with respect to diet and physical activity to improve waist circumference and cardiometabolic risk factors v. care as usual (Dutch Trial Registry: NTR2720).MethodIn a multisite cluster randomised controlled pragmatic trial, 29 care teams were randomised into 15 intervention (365 patients) and 14 control teams (371 patients). Intervention staff were trained to improve the obesogenic environment.ResultsWaist circumference decreased 1.51 cm (95% CI -2.99 to -0.04) in the intervention v. control group after 3 months and metabolic syndrome z-score decreased 0.22 s.d. (95% CI -0.38 to -0.06). After 12 months, the decrease in waist circumference was no longer statistically significantly different (-1.28 cm, 95% CI -2.79 to 0.23, P=0.097).ConclusionsTargeting the obesogenic environment of residential patients with SMI has the potential to facilitate reduction of abdominal adiposity and cardiometabolic risk, but maintaining initial reductions over the longer term remains challenging.


European Addiction Research | 2006

Association between interpersonal behaviour and helping alliance in substance-dependent patients

G.H. de Weert-van Oene; Frederike Jörg; C.A.J. de Jong

This paper focuses on exploring the association between the patient’s perception of his own interpersonal behaviour on the one hand, and that of the therapist’s behaviour and of helping alliance on the other hand. A cross-sectional study was conducted, including 83 patients from substance dependence programs in The Netherlands. They completed the Helping Alliance Questionnaire (HAQ) and the Interpersonal Check List (ICL). Results indicate that the patient’s perception of the therapeutic alliance, and his perception of his own and of the therapist’s interpersonal behaviour are three separate domains, each playing their role in the context of the therapeutic relationship. Helping Alliance scores are predicted by both the patient’s (complaisance) and the therapist’s interpersonal behaviour (dominance). We conclude that patient’s cognitions about himself and about his therapist do contribute significantly to the perception of the therapeutic relationship. Limitations to the study are discussed, as well as some clinical implications.


Schizophrenia Research | 2018

Effects of a lifestyle intervention on psychosocial well-being of severe mentally ill residential patients: ELIPS, a cluster randomized controlled pragmatic trial

Annemarie P. M. Stiekema; Anne Looijmans; Lisette van der Meer; Richard Bruggeman; Robert A. Schoevers; Eva Corpeleijn; Frederike Jörg

Large studies investigating the psychosocial effects of lifestyle interventions in patients with a severe mental illness (SMI) are scarce, especially in residential patients. This large, randomized controlled, multicentre pragmatic trial assessed the psychosocial effects of a combined diet-and-exercise lifestyle intervention targeting the obesogenic environment of SMI residential patients. Twenty-nine sheltered and clinical care teams were randomized into intervention (n=15) or control (n=14) arm. Team tailored diet-and-exercise lifestyle plans were set up to change the obesogenic environment into a healthier setting, and team members were trained in supporting patients to make healthier choices. The control group received care-as-usual. The Calgary Depression Scale for Schizophrenia (CDSS), Positive and Negative Syndrome Scale (PANSS), Health of the Nation Outcome Scales (HoNOS) and the Manchester Short Assessment of Quality of Life (MANSA) were assessed at baseline and after three and twelve months. Data were available for 384 intervention and 386 control patients (48.6±12.5years old, 62.7% males, 73.7% psychotic disorder). Linear mixed model analysis showed no psychosocial improvements in the intervention group compared to care-as-usual; the intervention group showed a slightly reduced quality of life (overall) and a small increase in depressive symptoms (clinical care facilities) and psychotic symptoms (sheltered facilities). This may be due to difficulties with implementation, the intervention not being specifically designed for improvements in mental well-being, or the small change approach, which may take longer to reach an effect. Further research might elucidate what type of lifestyle intervention under what circumstances positively affects psychosocial outcomes in this population.


Schizophrenia Research | 2018

Towards a comprehensive routine outcome monitoring program for people with psychotic disorders : The Pharmacotherapy Monitoring and Outcome Survey (PHAMOUS)

Agna A. Bartels-Velthuis; Ellen Visser; Johan Arends; Gerdina Pijnenborg; Lex Wunderink; Frederike Jörg; Wim Veling; Edith J. Liemburg; Stynke Castelein; Richard Bruggeman

BACKGROUND Patients with psychotic disorders are at risk of developing mental health and social problems, and physical disorders. To monitor and treat these problems when indicated, an annual routine outcome monitoring program, Pharmacotherapy Monitoring and Outcome Survey (PHAMOUS), was developed. This paper presents the background and content of PHAMOUS, implementation of PHAMOUS, characteristics of the patients screened in 2015, and the outcome of patients with three annual screenings between 2011 and 2015. METHODS PHAMOUS was implemented in four mental health institutions in the Northern Netherlands in 2006. During the PHAMOUS screening, patients are assessed on socio-demographics, psychiatric symptoms, medication, physical parameters, lifestyle, (psycho)social functioning and quality of life, using internationally validated instruments. RESULTS In 2015, 1955 patients with psychotic disorders were enrolled in the PHAMOUS screening. The majority (72%) was receiving mental healthcare for ten years or longer. A small group was hospitalized (10%) in the past year. Half of the patients were in symptomatic remission. Less than 10% had a paid job. More than half of the patients fulfilled the criteria for metabolic syndrome (54%). The subsample with three annual screenings from 2011 to 2015 (N = 1230) was stable, except the increasing prevalence of high glucose levels and satisfaction with social relationships (Cochrans Q = 16.33, p = .001 resp. Q = 14.79, p = .001). CONCLUSION The annual PHAMOUS screening enables to follow the mental, physical and social health problems of patients, which offers a good basis for shared-decision making with regard to updating the annual treatment plan, next to a wealth of data for scientific research.


BMC Psychiatry | 2017

Design of the Lifestyle Interventions for severe mentally ill Outpatients in the Netherlands (LION) trial; a cluster randomised controlled study of a multidimensional web tool intervention to improve cardiometabolic health in patients with severe mental illness

Anne Looijmans; Frederike Jörg; Richard Bruggeman; Robert A. Schoevers; Eva Corpeleijn

BackgroundThe cardiometabolic health of persons with a severe mental illness (SMI) is alarming with obesity rates of 45-55% and diabetes type 2 rates of 10-15%. Unhealthy lifestyle behaviours play a large role in this. Despite the multidisciplinary guideline for SMI patients recommending to monitor and address patients’ lifestyle, most mental health care professionals have limited lifestyle-related knowledge and skills, and (lifestyle) treatment protocols are lacking. Evidence-based practical lifestyle tools may support both patients and staff in improving patients’ lifestyle. This paper describes the Lifestyle Interventions for severe mentally ill Outpatients in the Netherlands (LION) trial, to investigate whether a multidimensional lifestyle intervention using a web tool can be effective in improving cardiometabolic health in SMI patients.Methods/DesignThe LION study is a 12-month pragmatic single-blind multi-site cluster randomised controlled trial. 21 Flexible Assertive Community Treatment (ACT) teams and eight sheltered living teams of five mental health organizations in the Netherlands are invited to participate. Per team, nurses are trained in motivational interviewing and use of the multidimensional web tool, covering lifestyle behaviour awareness, lifestyle knowledge, motivation and goal setting. Nurses coach patients to change their lifestyle using the web tool, motivational interviewing and stages-of-change techniques during biweekly sessions in a) assessing current lifestyle behaviour using the traffic light method (healthy behaviours colour green, unhealthy behaviours colour red), b) creating a lifestyle plan with maximum three attainable lifestyle goals and c) discussing the lifestyle plan regularly. The study population is SMI patients and statistical inference is on patient level using multilevel analyses. Primary outcome is waist circumference and other cardiometabolic risk factors after six and twelve months intervention, which are measured as part of routine outcome monitoring using standard protocols. Secondary outcomes include depressive and negative symptoms, cost-effectiveness, and barriers and facilitators in intervention implementation.DiscussionAdequate health care should target both mental health and lifestyle behaviours in SMI patients. This trial contributes by studying a 12-month multidimensional lifestyle intervention as a potential evidence based (nursing) tool for targeting multiple lifestyle behaviours in SMI patients.Trial registrationNederlands Trialregister NTR3765 (trialregister.nl; registered 21 December 2012).

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Richard Bruggeman

University Medical Center Groningen

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Eva Corpeleijn

University Medical Center Groningen

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Robert A. Schoevers

University Medical Center Groningen

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Ellen Visser

University of Groningen

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Jojanneke Bruins

University Medical Center Groningen

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Anne Looijmans

University Medical Center Groningen

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Agna A. Bartels-Velthuis

University Medical Center Groningen

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Albertine J. Oldehinkel

University Medical Center Groningen

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Annemarie P. M. Stiekema

University Medical Center Groningen

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