Skip to main content

Table 1 Available sample sizes, means and standard deviations for ADHD outcome and covariates ( N = 822)

From: An observational study of response heterogeneity in children with attention deficit hyperactivity disorder following treatment switch to modified-release methylphenidate

 

n

Mean

SD

Outcome ADHD

   

Parent rating

   

 Visit 1

742

1.63

0.62

 Visit 2

699

1.16

0.59

 Visit 3

637

0.99

0.55

Teacher rating

   

 Visit 1

570

1.29

0.70

 Visit 2

522

1.00

0.61

 Visit 3

489

0.85

0.57

Covariates

   

Age (years)

808

10.04

2.47

MPHpre (mg)

772

16.28

14.77

MPHVisit 1 (mg)

802

22.53

9.63

MPHVisit 2 (mg)

675

25.25

9.44

Conduct problemsa

721

4.16

2.29

Emotional symptomsb

722

3.79

2.46

  1. ADHD = attention deficit hyperactivity disorder; MPH = methylphenidate; MPHpre = daily dose of MPH before switch to modified-release MPH; MPHVisit 1 = daily dose of modified-release MPH prescribed at Visit 1; MPHVisit 2 = daily dose of modified-release MPH prescribed at Visit 2; SD = standard deviation.
  2. aConduct Problems Scale Strengths and Difficulties Questionnaire in parent ratings at Visit 1.
  3. bEmotional Symptoms Scale Strengths and Difficulties Questionnaire in parent ratings at Visit 1.
Back to article page

BMC Psychiatry

ISSN: 1471-244X

Contact us