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Table 1 Depressive morbidity in clinically treated bipolar disorder subjects.

From: Bipolar depression: a major unsolved challenge

Measure Bipolar I Bipolar II All bipolar
Studies 12 8 15
Subjects 2760 822 3582
Exposure (years) 7.78 [3.53–12.0] 8.28 [2.18–14.4] 7.89 [5.47–12.6]
%-Time depressed 30.6 [23.9–37.3] 35.9 [23.1–48.7] 31.8 [23.7–39.9]
Total %-time ill 43.7 [37.5–49.4] 43.2 [35.2–51.1] 43.6 [37.0–49.8]
%-of illness depressed 69.6 [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