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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