| | |
Participants n (%)
|
Non-participants
#n (%)
|
p-value
|
|---|
|
Sex*
|
Male
|
119 (38)
|
360 (59)
|
< 0.001
|
|
Female
|
195 (62)
|
254 (41)
|
|
Birth weight (grams)
|
<=1000
|
46 (15)
|
93 (15)
|
< 0.825
|
|
1001-1250
|
89 (28)
|
169 (26)
|
|
1251-1500
|
111 (35)
|
258 (40)
|
|
>1500
|
68 (22)
|
123 (19)
|
|
Origin*
|
Dutch
|
293 (94)
|
500 (82)
|
<0.001
|
|
Non-Dutch
|
18 (6)
|
110 (18)
|
|
Educational level (parents)*
|
Low
|
81 (26)
|
254 (46)
|
<0.001
|
|
Middle
|
120 (38)
|
197 (36)
|
|
High
|
113 (36)
|
103 (18)
|
|
SES (parents)*
|
Low
|
97 (31)
|
292 (48)
|
<0.001
|
|
Middle
|
101 (32)
|
181 (30)
|
|
High
|
114 (37)
|
135 (22)
|
|
Appropriate for gestational age
|
Yes
|
189 (60)
|
390 (64)
|
0.351
|
|
No, small
|
124 (40)
|
224 (36)
|
|
Maternal age at time of birth (years)
|
<20
|
11 (4)
|
54 (8)
|
0.065
|
|
>=20 and
|
289 (92)
|
566 (88)
|
|
<36
|
14 (4)
|
23 (4)
|
|
>=36
| | |
|
Disability at age 5*
|
None
|
89 (29)
|
119 (20)
|
<0.001
|
|
Mild
|
215 (69)
|
427 (71)
|
|
Severe
|
8 (2)
|
53 (9)
|
|
Disability at age 10
|
None
|
142 (51)
|
205 (50)
|
0.058
|
| |
Mild
|
119 (43)
|
149 (37)
| |
| |
Severe
|
18 (6)
|
52 (13)
| |
- * p < 0.05.
- # Survivors of the POPS cohort at age 28 who did not participate in this follow-up study at age 28.
