Variable

UK Data Service variable record for:

Cambridge Prenatal Screening Study : Main Study, 1990-1991

Variable Details

Variablebbt6
LabelSP.BIF. TEST; WEEKS WHEN HAD IT
Responses
7 1
8 3
9 1
10 4
11 1
12 18
13 3
14 14
15 23
16 290
17 94
18 85
19 14
20 14
21 2
22 2
0 936
99 32
Sysmiss 287
DisclaimerPlease note that these frequencies are not weighted.
LocationCambridge Prenatal Screening Study : Main Study, 1990-1991