The Validity of the 16-Item Version of the Prodromal Questionnaire (PQ-16) to Screen for Ultra High Risk of Developing Psychosis in the General Help-Seeking Population

Helga Ising, Wim Veling, Rachel Loewy, +8

Schizophrenia Bulletin

Mental Health MonitoringPsychopathologyRoutine ScreeningPsychiatryPsychotic Disorder +13

Cognitive Behavioral Therapy for Subjects at Ultrahigh Risk for Developing Psychosis: A Randomized Controlled Clinical Trial

Mark van der Gaag, Dorien H. Nieman, Judith Rietdijk, +7

Schizophrenia Bulletin

Detection of people at risk of developing a first psychosis: comparison of two recruitment strategies

Judith Rietdijk, Rianne Klaassen, Helga Ising, +6

Acta Psychiatrica Scandinavica

A single blind randomized controlled trial of cognitive behavioural therapy in a help-seeking population with an At Risk Mental State for psychosis: the Dutch Early Detection and Intervention Evaluation (EDIE-NL) trial

Judith Rietdijk, Sara Dragt, Rianne Klaassen, +7

Trials

Four-Year Follow-up of Cognitive Behavioral Therapy in Persons at Ultra-High Risk for Developing Psychosis: The Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial

Helga Ising, Tamar Kraan, Judith Rietdijk, +11

Schizophrenia Bulletin

Pathways to psychosis: Help-seeking behavior in the prodromal phase

Judith Rietdijk, Simon J. Hogerzeil, Albert M. van Hemert, +3

Schizophrenia Research

Prodromal PhasePsychopathologyPsychiatryPsychotic DisorderSchizophrenia +6

Depression and social anxiety in help-seeking patients with an ultra-high risk for developing psychosis

Judith Rietdijk, Helga Ising, Sara Dragt, +6

Psychiatry Research

Psychological Co-morbiditiesPsychopathologyPsychiatryComorbid Psychiatric DisorderDepression +8

Cost-effectiveness of preventing first-episode psychosis in ultra-high-risk subjects: multi-centre randomized controlled trial

Helga Ising, Filip Smit, Wim Veling, +9

Psychological Medicine

Four-Year Cost-effectiveness of Cognitive Behavior Therapy for Preventing First-episode Psychosis: The Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial

Helga Ising, Joran Lokkerbol, Judith Rietdijk, +11

Schizophrenia Bulletin

Ethnicity and baseline symptomatology in patients with an At Risk Mental State for psychosis

Eva Velthorst, Dorien H. Nieman, Wim Veling, +8

Psychological Medicine