Table 2.
Demographic characteristics of the total and new patients ≤ 26 years old on ADHD stimulants in CA.
| Total patients (≤ 26 years) | New patients* (≤ 26 years) | ||||
|---|---|---|---|---|---|
| 2019 | 2020 | 2021 | 2020 | 2021 | |
| (n = 306,998) | (n = 293,430) | (n = 294,744) | (n = 102,754) | (n = 106,660) | |
| No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | |
| Gender | |||||
| Male | 198,987 (64.8) | 183,663 (62.6) | 173,393 (58.8) | 58,114 (56.6) | 54,486 (51.1) |
| Female | 107,957 (35.2) | 109,717 (37.4) | 121,241 (41.1) | 44,612 (43.4) | 52,090 (48.8) |
| Unknown | 54 (< 0.1) | 50 (< 0.1) | 110 (< 0.1) | 28 (< 0.1) | 84 (< 0.1) |
| Age groups | |||||
| Infancy (0–2) | 12 (< 0.1) | 9 (< 0.1) | 10 (< 0.1) | 9 (< 0.1) | 8 (< 0.1) |
| Preschool (3–5) | 1856 (0.6) | 1,423 (0.5) | 1,436 (0.5) | 1,227 (1.2) | 1,289 (1.2) |
| Elementary (6–11) | 78,676 (25.6) | 69,901 (23.8) | 61,688 (20.9) | 27,089 (26.4) | 23,421 (22.0) |
| Adolescent (12–17) | 113,962 (37.1) | 107,027 (36.5) | 101,898 (34.6) | 28,098 (27.3) | 27,221 (25.5) |
| Late adolescent (18–21) | 48,086 (15.7) | 48,372 (16.5) | 53,409 (18.1) | 16,668 (16.2) | 19,350 (18.1) |
| Young adults (22–26) | 64,406 (21.0) | 66,698 (22.7) | 76,303 (25.9) | 29,663 (28.9) | 35,371 (33.2) |
* Patients with no ADHD stimulant prescriptions in the previous year, but with at least one prescription in the given year were defined as new patients.