| |
Intervention n = 272
|
Control n = 323
|
p-value
|
|---|
|
Age, years [mean (SD)]
|
11,6 (0,68)
|
11,8 (0,66)
|
0.11b
|
|
Class level
| | |
0.002a**
|
|
5th grade
|
190 (70)
|
187 (58)
| |
|
6th grade
|
82 (30)
|
136 (42)
| |
|
Gender
| | |
0.71a
|
|
Boys
|
129 (47)
|
155 (48)
| |
|
Girls
|
143 (53)
|
168 (52)
| |
|
Migration status
| | |
0.51a
|
|
Native Danish
|
227 (83)
|
279 (86)
| |
|
Non-native Danish
|
45 (17)
|
44 (14)
| |
|
Family social group
| | |
0.89a
|
|
SES high
|
94 (34)
|
113 (35)
| |
|
SES medium
|
104 (38)
|
120 (37)
| |
|
SES low
|
37 (14)
|
51 (16)
| |
|
Unclassifiable
|
37 (14)
|
39 (12)
| |
- a based on chi-square test and a significant level of 0.05
- b based on independent t-test and a significant level of 0.05
- *p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001
