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. 2012 Nov 23;2(6):e000477. doi: 10.1136/bmjopen-2011-000477

Table 2.

Prevalence rates of ADHD medication use (ATC N06BA) by gender. German Health Interview and Examination Survey for Children and Adolescents 2003–2006 (KiGGS)

Total
Boys
Girls
N** %* 95% CI %* 95% CI %* 95% CI
158 0.9 (0.7 to 1.1) 1.5 (1.2 to 1.8) 0.3 (0.2 to 0.5)
Age (years)
 0–5 0
 6–10 70 1.3 (1.2 to 2.1) 2.3 (1.7 to 3.1) 0.3 (0.1 to 0.7)
 11–13 54 1.7 (1.3 to 2.3) 2.7 (2.0 to 3.7) 0.7 (0.3 to 1.4)
 14–17 34 0.9 (0.6 to 1.3) 1.4 (0.9 to 2.1) 0.4 (0.1 to 0.9)
Region
 East 54 0.8 (0.5 to 1.2) 1.3 (0.8 to 2.0) 0.2 (0.1 to 0.5)
 West 104 0.9 (0.7 to 1.1) 1.5 (1.2 to 1.8) 0.3 (0.2 to 0.5)
Urbanicity
 Rural 30 0.7 (0.4 to 1.1) 1.2 (0.7 to 2.0) 0.1 (0.0 to 0.2)
 Small-size urban 41 0.9 (0.6 to 1.3) 1.6 (1.1 to 2.4) 0.1 (0.0 to 0.4)
 Medium-size urban 50 0.9 (0.7 to 1.3) 1.4 (1.0 to 1.9) 0.5 (0.2 to 1.0)
 Metropolitan 37 1,0 (0.7 to 1.4) 1.6 (1.1 to 2.2) 0.4 (0.2 to 0.9)
Migrant background
 Yes 7 0.4 (0.2 to 0.8) 0.3 (0.1 to 0.8) 0.4 (0.1 to 0.4)
 No 151 1.0 (0.8 to 1.2) 1.7 (1.4 to 2.1) 0.3 (0.1 to 0.4)
SES
 Low 42 0.9 (0.6 to 1.2) 1.3 (0.9 to 1.8) 0.5 (0.2 to 1.0)
 Middle 81 1.0 (0.8 to 1.3) 1.8 (1.4 to 2.4) 0.2 (0.1 to 0.5)
 High 33 0.7 (0.5 to 1.1) 1.2 (0.8 to 1.8) 0.2 (0.1 to 0.6)
Parent-rated subjective health status
 Excellent 29 0.5 (0.3 to 0.7) 0.9 (0.6 to 1.4) 0.1 (0.0 to 0.3)
 Good 119 1.2 (1.0 to 1.5) 1.9 (1.5 to 2.4) 0.5 (0.3 to 0.8)
 Moderate/Bad/Very Bad† 9 0.8 (0.4 to 1.7) 1.4 (0.6 to 2.9) 0.2 (0.0 to 1.3)
Tobacco smoking by the mother during pregnancy
 Regular 16 1.7 (0.9 to 3.0) 2.4 (1.2 to 4.6) 1.0 (0.4 to 2.7)
 From time to time 15 0.8 (0.4 to 1.4) 1.3 (0.7 to 2.4) 0.2 (0.1 to 0.9)
 Never 123 0.9 (0.7 to 1.1) 1.5 (1.2 to 1.8) 0.3 (0.1 to 0.5)
Alcohol consumption by the mother during pregnancy
 Regular 2 7.7 (1.9 to 26.5) 14.2 (3.2 to 45.0)
 From time to time 19 0.7 (0.4 to 1.3) 1.0 (0.5 to 1.8) 0.5 (0.2 to 1.4)
 Never 134 0.9 (0.8 to 1.9) 1.6 (1.3 to 1.9) 0.3 (0.1 to 0.5)
Last visit to a doctor
 <4 weeks 56 0.9 (0.7 to 1.3) 1.6 (1.1 to 2.3) 0.3 (0.1 to 0.6)
  1-<3 months 62 1.3 (1.0 to 1.7) 2.2 (1.6 to 2.9) 0.3 (0.1 to 0.8)
 3–12 months 32 0.6 (0.4 to 0.9) 0.9 (0.5 to 1.4) 0.3 (0.2 to 0.7)
 12+months 6 0.5 (0.2 to 1.1) 0.8 (0.3 to 1.9) 0.1 (0.0 to 0.6)
ADHD diagnosis (physician or psychologist)
 Yes 142 0.8 (0.6 to 0.9) 1.3 (1.1 to 1.6) 0.2 (0.1 to 0.4)
 No 3 0.0 (0.0 to 0.1) 0.1 (0.0 to 0.2)
Number of medicines (N06BA)
 1 146 0.8 (0.7 to 1.0) 1.3 (1.1 to 1.6) 0.3 (0.2 to 0.4)
 2+ 12 0.1 (0.0 to 0.1) 0.1 (0.1 to 0.2) 0.0 (0.0 to 0.1)

*%, weighted; N**, unweighted. The sum of each category may not be the total number because of data missing.

†The categories ‘Moderate’, ‘Bad’ and ‘Very Bad’ were collapsed due to low cell frequencies.

ADHD, attention-deficit hyperactivity disorder; ATC, Anatomical Therapeutic Chemical; SES, socioeconomic status.