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Table 2 Summary of data from studies included for bipolar disorders

From: Health states for schizophrenia and bipolar disorder within the Global Burden of Disease 2010 Study

Reference Country Age range (years) Number of cases Included diagnosesa Quality Index Score(/1) Percentage of manic cases Percentage of depressive cases Percentage of residual cases
Morgan et al., 2005[40] Australia 18-64 112 BPI, BPII 1.0 19 20 62
Negash et al., 2005[41] Ethiopia 15-49 295 BPI 0.9 12 13 75
Cruz et al., 2008[37] Europeanb 18-92 1563 BPI 0.9 11 11 79
Faravelli et al.,1990[38] Italy 15-99 6 BPI, BPII, BPNOS 0.8 33 50 17
Have et al., 2002[39] Netherlands 18-64 136 BPI, BPNOS 0.9 41 28 32
Blader et al., 2007[36] USA 5-64 3900 BPI, BPII, BPNOS 0.6 28 37 35
Pooled health states proportions (%) (95% confidence intervals) 23% (10%-39%) 27% (11%-47%) 50% (30%-70%)
  1. Note. Values rounded up to nearest whole number; aBP: Bipolar; NOS: Not otherwise specified; bEuropean: Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Switzerland, and the United Kingdom.