Table 1 Depressive morbidity in clinically treated bipolar disorder subjects.

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]