TABLE 1.
Descriptive statistics of the total cohort (1992–2001)
| Total | Asthma | ADHD | Asthma and ADHD | |
|---|---|---|---|---|
| N (column percent) | N (row percent) | N (row percent) | N (row percent) | |
| Overall | 927,956 (100.0) | 121,891 (13.14) | 39,298 (4.23) | 7334 (0.79) |
| Sex | ||||
| Male | 474,462 (51.13) | 67,639 (14.26) | 26,489 (5.58) | 4932 (1.04) |
| Female | 453,494 (48.87) | 54,252 (11.96) | 12,809 (2.82) | 2402 (0.53) |
| Year of birth | ||||
| 1992–1996 | 513,691 (55.36) | 64,752 (12.61) | 22,015 (4.29) | 3988 (0.78) |
| 1997–2001 | 414,265 (44.64) | 57,139 (13.79) | 17,283 (4.17) | 3346 (0.81) |
Abbreviation: ADHD, attention‐deficit/hyperactivity disorder.