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Table 1 Depressive morbidity in clinically treated bipolar disorder subjects.

From: Bipolar depression: a major unsolved challenge

MeasureBipolar IBipolar IIAll bipolar
Studies12815
Subjects27608223582
Exposure (years)7.78 [3.53–12.0]8.28 [2.18–14.4]7.89 [5.47–12.6]
%-Time depressed30.6 [23.9–37.3]35.9 [23.1–48.7]31.8 [23.7–39.9]
Total %-time ill43.7 [37.5–49.4]43.2 [35.2–51.1]43.6 [37.0–49.8]
%-of illness depressed69.6 [60.4–78.9]81.2 [71.3–91.0]72.3 [62.9–81.7]
  1. Data are means with 95% confidence intervals [CI]. Depression includes major episodes plus dysthymia