| Gender and health care utilization: the role of mental distress and help-seeking propensity GT Koopmans, LM Lamers Social science & medicine 64 (6), 1216-1230, 2007 | 226 | 2007 |
| Treatment adherence therapy in people with psychotic disorders: randomised controlled trial ABP Staring, M Van der Gaag, GT Koopmans, JP Selten, JM Van Beveren, ... The British journal of psychiatry 197 (6), 448-455, 2010 | 158 | 2010 |
| Emergency psychiatry, compulsory admissions and clinical presentation among immigrants to the Netherlands CL Mulder, GT Koopmans, JP Selten The British Journal of Psychiatry 188 (4), 386-391, 2006 | 117 | 2006 |
| Ethnic background and differences in health care use: a national cross-sectional study of native Dutch and immigrant elderly in the Netherlands S Denktaş, G Koopmans, E Birnie, M Foets, G Bonsel International journal for equity in health 8, 1-9, 2009 | 89 | 2009 |
| Explaining ethnic differences in late antenatal care entry by predisposing, enabling and need factors in The Netherlands. The Generation R Study AA Choté, GT Koopmans, WK Redekop, CJM de Groot, RJ Hoefman, ... Maternal and child health journal 15, 689-699, 2011 | 88 | 2011 |
| Common mental disorders and use of general health services: a review of the literature on population‐based studies GT Koopmans, MCH Donker, FHH Rutten Acta Psychiatrica Scandinavica 111 (5), 341-350, 2005 | 69 | 2005 |
| Special section on the GAF: determinants of indicated versus actual level of care in psychiatric emergency services CL Mulder, GT Koopmans, JS Lyons Psychiatric Services 56 (4), 452-457, 2005 | 69* | 2005 |
| Length of hospital stay and health services use of medical inpatients with comorbid noncognitive mental disorders: a review of the literature GT Koopmans, MCH Donker, FHH Rutten General hospital psychiatry 27 (1), 44-56, 2005 | 57 | 2005 |
| Differences in overweight and obesity among children from migrant and native origin: the role of physical activity, dietary intake, and sleep duration W Labree, D Van de Mheen, F Rutten, G Rodenburg, G Koopmans, ... PloS one 10 (6), e0123672, 2015 | 54 | 2015 |
| Lack of motivation for treatment in emergency psychiatry patients CL Mulder, GT Koopmans, MW Hengeveld Social Psychiatry and Psychiatric Epidemiology 40, 484-488, 2005 | 44 | 2005 |
| The use of outpatient mental health care services of migrants vis-a-vis Dutch natives: equal access? GT Koopmans, E Uiters, W Deville, M Foets International Journal of Social Psychiatry 59 (4), 342-350, 2013 | 43 | 2013 |
| The effects of crisis plans for patients with psychotic and bipolar disorders: a randomised controlled trial A Ruchlewska, CL Mulder, R Smulders, BJ Roosenschoon, G Koopmans, ... BMC psychiatry 9, 1-8, 2009 | 42 | 2009 |
| Physical activity differences between children from migrant and native origin W Labree, F Lötters, D van de Mheen, F Rutten, A Rivera Chavarría, ... BMC Public Health 14, 1-9, 2014 | 32 | 2014 |
| Chronic conditions, psychological distress and the use of psychoactive medications GT Koopmans, LM Lamers Journal of psychosomatic research 48 (2), 115-123, 2000 | 28 | 2000 |
| Assessing the construct validity of three indicators of psychological distress in relation to perceived health and physical illness GT Koopmans, LM Lamers Social Psychiatry and Psychiatric Epidemiology 40, 1012-1018, 2005 | 24 | 2005 |
| Comparing patients with depressive complaints and patients with chronic medical conditions on their functioning and medical consumption GT Koopmans, LM Lamers JOURNAL OF MENTAL HEALTH POLICY AND ECONOMICS 4 (2), 91-100, 2001 | 21 | 2001 |
| Underutilization of prescribed drugs use among first generation elderly immigrants in the Netherlands S Denktaş, G Koopmans, E Birnie, M Foets, G Bonsel BMC Health Services Research 10, 1-11, 2010 | 20 | 2010 |
| Is the impact of depressive complaints on the use of general health care services dependent on severity of somatic morbidity? GT Koopmans, LM Lamers Journal of psychosomatic research 61 (1), 41-50, 2006 | 19 | 2006 |
| Effects of psychiatric consultation on medical consumption in medical outpatients with abdominal pain GT Koopmans, L Meeuwesen, FJ Huyse, FJM Meiland, AJM Donker Psychosomatics 36 (4), 387-399, 1995 | 12 | 1995 |
| Psychiatric consultations in medical outpatients with abdominal pain: patient and physician effects L Meeuwesen, FJ Huyse, FJM Meiland, GT Koopmans, AJM Donker The International Journal of Psychiatry in Medicine 24 (4), 339-356, 1994 | 12 | 1994 |
