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Table 1. Main large samples (> 1000 patients) studies on Bipolar Disorder published in the last ten years

From: Has Bipolar Disorder become a predominantly female gender related condition? Analysis of recently published large sample studies

Authors Site Sample N° of BD patients recruited Female patients (%)
Bareis et al. 2018 U.S.A. STEP-BD (1999-2005) 3563 57,65%
Bobo et al. 2018 U.S.A. Mayo Clinic Biobank (started in 2009) 1465
BD-I = 69,42%
BD-II = 30,58%
60,75%
BD-I = 58,60%
BD-II = 66,10%
Buoli et al. 2019 Italy RENDiBi Study (April 2014-March 2015) 1675
BD-I = 62,21%
BD-II = 37,79%
57,40%
Crump et al. 2013 Sweden National Registry (2001-2002) 6618 59,20%
Hayes et al. 2017 U.K. Primary care electronics health records (THIN) (2000-2014) 17341 58,83%
Hou et al. 2016 Australia, Canada, Czech Republic, France, Germany, Italy, Japan, Poland, Romania,Spain, Sweden, Switzerland, Taiwan, U.S.A. ConLiGen 2563 57,63%
Kalman et al. 2019 Austria, Australia, Canada, Czech Republic, France, Germany, Italy, Poland, Romania, Spain, Sweden, U.S.A. ConLiGen, Bonn-Mannheim and PsyCourse 1995 (BD-I patients only) 55,10%
Karanti et al. 2015 Sweden Swedish National Quality Assurance Register for Bipolar Disorder (BipoläR) (2004-2011) 7136
BD-I = 47,09%
BD-II = 38,15%
BD-NOS = 14,76%
61,27%
BD-I = 57,30%
BD-II = 64,95%
BD-NOS = 64,42%
Vieta et al. 2013 Austria, Belgium, Brazil, France, Germany, Portugal, Romania, Turkey, Ukraine, Venezuela WAVE-BD (April 2010- June 2011) 2896
BD-I = 68,70%
BD-II = 31,3%
65,00%
Yoon et al. 2018 Korea Korean HIRA-NPS (2013 sample only) 2626 58,80%
  1. THIN = The Health Improvement Network; STEP-BD = Systematic Treatment Enhancement Program for Bipolar Disorder; RENDiBi = National Epidemiological Research on Bipolar Disorder; HIRA-NPS = Health Insurance Review and Assessment Service – National Patient Sample; WAVE-BD = Wide Ambispective of Bipolar Disorder; ConLiGen = The International Consortium on Lithium Genetics; BD-I = Bipolar Disorder type I