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Variable

UK Data Service variable record for:

1970 British Cohort Study: Birth and 22-Month Subsample, 1970-1972

Variable Details

Variablea0005a
LabelMothers age at Delivery
Responses
-2 Not Known 103
14 2
15 26
16 128
17 303
18 515
19 688
20 923
21 1098
22 1346
23 1481
24 1224
25 1306
26 1197
27 1121
28 845
29 816
30 724
31 610
32 498
33 409
34 362
35 329
36 234
37 217
38 184
39 160
40 127
41 84
42 60
43 35
44 21
45 7
46 7
47 2
49 1
50 1
51 1
52 1
DisclaimerPlease note that these frequencies are not weighted.
Location1970 British Cohort Study: Birth and 22-Month Subsample, 1970-1972
UniverseLocation of units of observation: National;Population: Children born in one particular week in 1970. The Birth sample covered the United Kingdom while the 22-month Sub-sample covered Great Britain only.
SamplingNo sampling (total universe); One-stage stratified or systematic random sample;The Birth sample (A) included all babies born (alive or dead) after the 24th week of gestation, in one particular week in 1970 in the United Kingdom.<br>The 22-month sub-sample (B) is a 10% sample of the live births in (A) plus all multiple births, all singleton children born at later than 42 weeks gestation, and all singleton children who were on or below the 5th centile of birthweight for their length of gestation.
Study TypeLongitudinal/panel/cohort
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We are supported by the University of Essex, University of Manchester, Jisc, UCL and University of Edinburgh. We are funded by UKRI through the Economic and Social Research Council.