Table 2.
Multiply imputed prevalence estimates of DSM-IV/CIDI attention-deficit hyperactivity disorder in each WMH sample
| Childhood ADHD
|
Adult ADHD among childhood cases of…
|
Adult ADHD in the total sample
|
(n)a | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Threshold
|
Subthreshold
|
Threshold
|
Subthreshold
|
% | (SE) | ||||||
| % | (SE) | % | (SE) | % | (SE) | % | (SE) | ||||
| I. High-income countries | |||||||||||
| Belgium | 2.9 | (1.1) | 8.6 | (2.1) | 71.9 | (16.5) | 22.7 | (10.0) | 4.1 | (1.5) | (486) |
| France | 4.7 | (1.2) | 8.9 | (1.4) | 58.8 | (14.0) | 50.9 | (10.5) | 7.3 | (1.8) | (727) |
| Germany | 1.8 | (0.7) | 5.6 | (1.5) | 67.9 | (16.1) | 33.7 | (8.5) | 3.1 | (0.8) | (621) |
| Italy | 0.9 | (0.2) | 3.7 | (0.7) | 84.1 | (11.1) | 55.1 | (11.2) | 2.8 | (0.6) | (853) |
| Netherlands | 2.9 | (0.9) | 9.2 | (1.6) | 82.3 | (14.4) | 28.4 | (9.3) | 5.0 | (1.6) | (516) |
| Northern Ireland | 3.2 | (0.8) | 4.5 | (0.7) | 98.8 | (2.0) | 64.0 | (8.2) | 6.0 | (0.8) | (907) |
| Poland | 0.3 | (0.1) | 0.8 | (0.2) | 69.7 | (9.4) | 62.6 | (14.5) | 0.8 | (0.2) | (2276) |
| Portugal | 1.5 | (0.4) | 4.0 | (0.7) | 56.3 | (15.3) | 54.0 | (11.1) | 3.0 | (0.7) | (1070) |
| Spain | 1.8 | (0.8) | 1.9 | (0.5) | 33.6 | (20.6) | 29.2 | (12.3) | 1.2 | (0.6) | (960) |
| Spain—Murcia | 2.0 | (0.5) | 4.2 | (0.7) | 72.9 | (21.6) | 44.3 | (17.5) | 3.3 | (1.1) | (631) |
| USA | 8.1 | (0.6) | 6.6 | (0.5) | 46.0 | (4.9) | 22.5 | (4.6) | 5.2 | (0.6) | (3197) |
| Total | 3.3 | (0.2) | 4.7 | (0.3) | 56.2 | (4.8) | 36.9 | (4.3) | 3.6 | (0.4) | (12,244) |
| II. Upper-middle-income countries | |||||||||||
| Brazil—São Paulo | 2.5 | (0.4) | 7.0 | (1.0) | 76.2 | (14.5) | 58.2 | (10.7) | 5.9 | (1.2) | (1824) |
| Columbia—Medellin | 2.5 | (0.5) | 3.0 | (0.7) | 59.2 | (10.7) | 51.5 | (12.5) | 3.0 | (0.7) | (970) |
| Lebanon | 1.5 | (0.4) | 3.3 | (1.2) | 52.4 | (15.0) | 29.9 | (17.1) | 1.8 | (0.7) | (595) |
| Mexico | 3.0 | (0.4) | 3.7 | (0.7) | 32.8 | (7.3) | 25.8 | (8.6) | 1.9 | (0.4) | (1736) |
| Romania | 0.4 | (0.3) | 0.7 | (0.4) | 45.7 | (40.8) | 54.7 | (24.3) | 0.6 | (0.4) | (940) |
| Total | 2.2 | (0.2) | 4.0 | (0.4) | 54.1 | (7.0) | 46.8 | (7.6) | 3.0 | (0.5) | (6065) |
| III. Low-/lower-middle-income countries | |||||||||||
| Columbia | 1.2 | (0.3) | 2.9 | (0.5) | 84.9 | (10.2) | 51.5 | (8.8) | 2.5 | (0.5) | (1731) |
| Iraq | 0.1 | (0.1) | 1.0 | (0.2) | 77.0 | (19.2) | 47.9 | (14.6) | 0.6 | (0.2) | (3227) |
| Peru | 0.8 | (0.2) | 2.5 | (0.5) | 58.4 | (14.1) | 35.4 | (12.4) | 1.4 | (0.5) | (1287) |
| PRCb—Shenzhen | 0.7 | (0.2) | 3.0 | (0.6) | 62.8 | (21.4) | 46.1 | (8.2) | 1.8 | (0.4) | (2190) |
| Total | 0.6 | (0.1) | 2.2 | (0.2) | 71.7 | (9.5) | 45.9 | (5.5) | 1.4 | (0.2) | (8435) |
| IV. Total | 2.2 | (0.1) | 3.7 | (0.2) | 57.0 | (4.4) | 41.1 | (4.3) | 2.8 | (0.3) | (26,744) |
| χ2 | 113.3* | 48.9* | 2.4 | 3.9 | 40.5* | ||||||
Sample restricted to respondents ages 18–44 at interview and Part II sample
*
Significant at the .05 level, two-sided test
a
These are denominator n’s; that is, the number of people assessed rather than the number with ADHD
b
People’s Republic of China