Table 3.
Prevalence, age of onset, and proportional persistence of mental disorders in the WMH-ICS surveys (n = 13,984)
|
Lifetime Prevalence % (95%CI) |
12-Month Prevalence % (95%CI) |
12-Month Prevalence among Lifetime Cases % (95%CI) |
Age of Onset Median (95%CI) [IQR] |
Proportional Persistencea Median (95%CI) [IQR] |
|
| Type of disorder | |||||
| Major depressive episode | 21.2 (20.2–22.3) | 18.5 (17.5–19.5) | 87.1 (85.2–89.0) | 14.3 (14.1–14.5) [12.4–15.9] | 62.4 (59.1–65.7) [37.7–79.0] |
| Generalized anxiety disorder | 18.6 (17.6–19.6) | 16.7 (15.7–17.7) | 90.0 (88.2–91.8) | 14.6 (14.3–14.9) [12.2–16.3] | 65.0 (61.4–68.6) [41.5–80.9] |
| Panic disorder | 5.0 (4.4–5.6) | 4.5 (3.9–5.1) | 90.1 (85.5–94.6) | 14.6 (14.0–15.2) [12.1–16.5] | 68.0 (61.4–74.7) [45.3–83.6] |
| Broad mania | 3.5 (3.0–3.9) | 3.1 (2.6–3.5) | 88.6 (84.9–92.2) | 15.0 (14.6–15.4) [13.6–16.6] | 72.8 (69.2–76.5) [55.5–88.1] |
| Alcohol use disorder | 6.8 (6.1–7.5) | 6.3 (5.7–7.0) | 92.8 (90.2–95.3) | 15.6 (15.4–15.9) [14.3–16.9] | 73.3 (70.1–76.6) [49.4–91.4] |
| Substance use disorder | 5.1 (4.5–5.7) | 3.0 (2.6–3.5) | 59.8 (53.4–66.1) | 16.2 (15.8–16.5) [14.9–17.7] | 45.9 (39.2–52.7) [26.3–73.5] |
| Any mental disorder | 35.3 (34.1–36.6) | 31.4 (30.2–32.6) | 89.0 (87.6–90.4) | 14.2 (14.1–14.4) [12.0–15.9] | 65.0 (62.5–67.5) [41.2–80.3] |
Note. To obtain pooled estimates of prevalence, age of onset, and proportional persistence across countries, each country was given an equal sum of weights. For any
mental disorder, age of onset was defined as the minimum age of onset across disorders; for proportional persistence, this was the maximum proportional persistence
across disorders. 95%CI = 95% confidence interval; IQR = interquartile range.
a
Proportional persistence of mental disorder is defined as the percentage of lifetime years with mental disorder symptoms from age-of-onset to age at the completion of the survey.