Table 3.
Estimated incidencea and characteristics of newly diagnosed adult patients, 2007–2011
| 2007 (n=2,809) | 2008 (n=4,083) | 2009 (n=4,831) | 2010 (n=6,382) | 2011 (n=6,816) | |
|---|---|---|---|---|---|
| Age in years, mean (SD); median | 31.4 (10.7); 29.0 | 31.7 (10.8); 30.0 | 31.8 (11.0); 29.0 | 33.4 (14.0); 30.0 | 32.4 (11.9); 30.0 |
| Sex, n (%) | |||||
| Male | 1,695 (60.3) | 2,345 (57.4) | 2,726 (56.4) | 3,442 (53.9) | 3,621 (53.1) |
| Female | 1,114 (39.7) | 1,738 (42.6) | 2,105 (43.6) | 2,940 (46.1) | 3,195 (46.9) |
| Age group, n (%) | |||||
| 18–21 years | 625 (22.2) | 868 (21.3) | 997 (20.6) | 1,353 (21.2) | 1,431 (21.0) |
| 22–64 years | 2,176 (77.5) | 3,203 (78.4) | 3,815 (79.0) | 4,811 (75.4) | 5,315 (78.0) |
| ≥65 years | 8 (0.3) | 12 (0.3) | 19 (0.4) | 218 (3.4) | 70 (1.0) |
| Estimated incidence per 1,000 persons, by age group | 0.39 | 0.56 | 0.65 | 0.85 | 0.90 |
| 18–21 years | 1.31 | 1.74 | 1.93 | 2.57 | 2.71 |
| 22–64 years | 0.42 | 0.62 | 0.73 | 0.92 | 1.01 |
| ≥65 years | <0.01 | 0.01 | 0.01 | 0.12 | 0.04 |
Notes:
a
Swedish population from November 2007–2011: Total, 2007: 7,261,025; 2008: 7,342,036; 2009: 7,429,061; 2010: 7,507,516; 2011: 7,574,814; age 18–21 years; 2007: 475,707; 2008: 497,843; 2009: 517,732; 2010: 527,248; 2011: 527,133; age 22–64 years; 2007: 5,163,520; 2008: 5,185,548; 2009: 5,207,670; 2010: 5,229,188; 2011: 5,249,647; age ≥65 years; 2007: 1,621,798; 2008: 1,658,645; 2009: 1,703,659; 2010: 1,751,080; 2011: 1,798,034.33
Abbreviation: ADHD, attention-deficit/hyperactivity disorder.