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Table 3 Ratio of male to female prescribing prevalence by age category and study year and ratio of males to females registered on the database

From: The epidemiology of pharmacologically treated attention deficit hyperactivity disorder (ADHD) in children, adolescents and adults in UK primary care

Age Category

2003

2004

2005

2006

2007

2008

Prevalence 6–12 years

6.085

5.942

5.451

5.725

5.560

5.534

Registered on database 6–2 years

1.050

1.048

1.045

1.045

1.044

1.044

Prevalence 13–17 years

9.838

7.955

8.228

7.625

6.652

6.277

Registered on database 13–17 years

1.125

1.104

1.083

1.061

1.043

1.043

Prevalence 18–24 years

3.355

4.492

7.549

3.856

4.117

5.602

Registered on database 18–24 years

1.084

1.093

1.084

1.079

1.066

1.043

Prevalence 25–45 years

3.252

1.461

1.867

1.835

2.120

2.020

Registered on database 25–45 years

1.025

1.026

1.023

1.022

1.022

1.014

Prevalence >45 years

1.108

0.736

2.202

1.462

2.004

2.339

Registered on database >45 years

0.903

0.906

0.908

0.912

0.915

0.916