Table 1 Characteristics of the participants in the Generation R study (n = 2,649).

From: Physical symptoms and brain morphology: a population neuroimaging study in 12,286 pre-adolescents

 

Mean

SD

Age

10.1

0.6

Body mass index

17.4

2.5

Non-verbal intelligence quotient

103.9

14.7

Physical symptoms (CBCL)

1.5

2.0

 

n

%

Sex

 Female

1335

50.4

National origin

 Dutch

1721

65.0

 Caribbean

223

8.4

 Non-Dutch Western

223

8.4

 Moroccan or Turkish

212

8.0

 African

123

4.6

 American or Asian

108

4.1

 Indonesian

15

0.6

 Missing data

24

0.9

Maternal education level

 No/Primary/Secondary studies

1746

65.9

 Higher education

873

33.0

 Missing data

30

1.1

Monthly household income

 ≤ €2,000

380

14.3

 > €2,000 to ≤ €3,200

604

22.8

 > €3,200

1350

51.0

 Missing data

315

11.9

  1. Non-imputed data are shown.
  2. CBCL the Child Behavior Checklist, SD Standard Deviation.