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Table 1 Characteristics of the study population according to stimulant medication use for ADHD

From: Identifying cross-cultural variations in psychostimulant use for attention deficit hyperactivity disorder using linked data

Characteristics No stimulant used (%) Stimulant used for ADHD (%)
Participants 665,523 14,122
Sex
 Male 340,226 (51.1) 10,834 (76.7)
 Female 325,295 (48.9) 3288 (23.3)
 Unknown 2 (0.01)  
Age at initial stimulant use between 2003 and 2007
 0–4 years 108 (0.8%)
 5–12 7065 (50.0)
 13–17 3941 (27.9)
 ≥18 3008 (21.3)
HPNO/LPNO status
 HPNO 635,914 (95.6) 13,664 (96.8)
 LPNO 18,656 (2.8) 205 (1.5)
 Unknown 10,953 (1.6) 253 (1.8)
Geographical remoteness
 Metropolitan 421,764 (63.4) 9869 (69.9)
 Rural 111,860 (16.8) 2130 (15.1)
 Remote 26,302 (4.0) 271 (1.9)
 Unknown 105,597 (15.9) 1852 (13.1)
Social disadvantage
 Least disadvantaged 293,172 (44.1) 6650 (47.1)
 Less disadvantaged 141,043 (21.2) 2916 (20.6)
 Little disadvantaged 54,297 (8.2) 1198 (8.5)
 More disadvantaged 26,630 (4.0) 553 (3.9)
 Most disadvantaged 47,521 (7.1) 1002 (7.1)
 Unknown 102,860 (15.5) 1803 (12.8)
  1. HPNO includes Australia/New Zealand, Europe and North America, LPNO includes Africa, Asia, Middle East and South America