Klaassen R - Search Results

1

Home alone: Social functioning as a transdiagnostic marker of mental health in youth, exploring retrospective and daily life measurements.

Leijdesdorff SMJ, Bakker JM, Lange I, Michielse S, Goossens L, Klaassen R, Popma A, Schruers K, Lieverse R, Marcelis M, van Os J, Wichers M, Myin-Germeys I, van Amelsvoort T. Leijdesdorff SMJ, et al. Among authors: klaassen r. Compr Psychiatry. 2022 May;115:152309. doi: 10.1016/j.comppsych.2022.152309. Epub 2022 Mar 15. Compr Psychiatry. 2022. PMID: 35325672 Free article.

2

Baseline differences in clinical symptomatology between ultra high risk subjects with and without a transition to psychosis.

Velthorst E, Nieman DH, Becker HE, van de Fliert R, Dingemans PM, Klaassen R, de Haan L, van Amelsvoort T, Linszen DH. Velthorst E, et al. Among authors: klaassen r. Schizophr Res. 2009 Apr;109(1-3):60-5. doi: 10.1016/j.schres.2009.02.002. Epub 2009 Mar 9. Schizophr Res. 2009. PMID: 19272756

3

The validity of the DSM-IV diagnostic classification system of non-affective psychoses.

Korver-Nieberg N, Quee PJ, Boos HB, Simons CJ; GROUP. Korver-Nieberg N, et al. Aust N Z J Psychiatry. 2011 Dec;45(12):1061-8. doi: 10.3109/00048674.2011.620562. Epub 2011 Oct 25. Aust N Z J Psychiatry. 2011. PMID: 22026404

4

Genetic Risk and Outcome of Psychosis (GROUP), a multi-site longitudinal cohort study focused on gene-environment interaction: objectives, sample characteristics, recruitment and assessment methods.

Korver N, Quee PJ, Boos HB, Simons CJ, de Haan L; GROUP investigators. Korver N, et al. Int J Methods Psychiatr Res. 2012 Sep;21(3):205-21. doi: 10.1002/mpr.1352. Epub 2012 Mar 15. Int J Methods Psychiatr Res. 2012. PMID: 22419500 Free PMC article. Clinical Trial.

5

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

Rietdijk J, Ising HK, Dragt S, Klaassen R, Nieman D, Wunderink L, Cuijpers P, Linszen D, van der Gaag M. Rietdijk J, et al. Among authors: klaassen r. Psychiatry Res. 2013 Oct 30;209(3):309-13. doi: 10.1016/j.psychres.2013.01.012. Epub 2013 Feb 22. Psychiatry Res. 2013. PMID: 23433870

6

Psychometric properties of the self-report version of the Quick Inventory of Depressive Symptoms (QIDS-SR₁₆) questionnaire in patients with schizophrenia.

Lako IM, Wigman JT, Klaassen RM, Slooff CJ, Taxis K, Bartels-Velthuis AA; GROUP investigators. Lako IM, et al. BMC Psychiatry. 2014 Sep 3;14:247. doi: 10.1186/s12888-014-0247-2. BMC Psychiatry. 2014. PMID: 25178310 Free PMC article.

7

COMT Val(158)Met genotype and cannabis use in people with an At Risk Mental State for psychosis: Exploring Gene x Environment interactions.

Nieman DH, Dragt S, van Duin EDA, Denneman N, Overbeek JM, de Haan L, Rietdijk J, Ising HK, Klaassen RMC, van Amelsvoort T, Wunderink L, van der Gaag M, Linszen DH. Nieman DH, et al. Schizophr Res. 2016 Jul;174(1-3):24-28. doi: 10.1016/j.schres.2016.03.015. Epub 2016 Apr 1. Schizophr Res. 2016. PMID: 27052366

8

The effect of childhood adversity on 4-year outcome in individuals at ultra high risk for psychosis in the Dutch Early Detection Intervention Evaluation (EDIE-NL) Trial.

Kraan TC, Ising HK, Fokkema M, Velthorst E, van den Berg DPG, Kerkhoven M, Veling W, Smit F, Linszen DH, Nieman DH, Wunderink L, Boonstra N, Klaassen RMC, Dragt S, Rietdijk J, de Haan L, van der Gaag M. Kraan TC, et al. Psychiatry Res. 2017 Jan;247:55-62. doi: 10.1016/j.psychres.2016.11.014. Epub 2016 Nov 11. Psychiatry Res. 2017. PMID: 27863320 Clinical Trial.

9

Prevalence of psychopathology in children of parents with mental illness and/or addiction: an up to date narrative review.

Leijdesdorff S, van Doesum K, Popma A, Klaassen R, van Amelsvoort T. Leijdesdorff S, et al. Among authors: klaassen r. Curr Opin Psychiatry. 2017 Jul;30(4):312-317. doi: 10.1097/YCO.0000000000000341. Curr Opin Psychiatry. 2017. PMID: 28441171 Review.

10

Burden of mental health problems: quality of life and cost-of-illness in youth consulting Dutch walk-in youth health centres.

Leijdesdorff SMJ, Huijs CEM, Klaassen RMC, Popma A, van Amelsvoort TAMJ, Evers SMAA. Leijdesdorff SMJ, et al. Among authors: klaassen rmc. J Ment Health. 2023 Feb;32(1):150-157. doi: 10.1080/09638237.2020.1836555. Epub 2020 Oct 22. J Ment Health. 2023. PMID: 33086874

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