Variable Description

Name
IBB
Label
Interval between birth of survey child and previous sibling whether alive or dead
Dataset
Value Label Frequency % of valid % of all
-9899 No answer 29
0.54%
0.00%
0 No older child 2,154
40.17%
0.00%
1 March '45 - July '45 47
0.88%
0.00%
2 March '44 - Feb '45 788
14.70%
0.00%
3 March '43 - Feb '44 671
12.51%
0.00%
4 March '42 - Feb '43 485
9.05%
0.00%
5 March '41 - Feb '42 300
5.59%
0.00%
6 March '40 - Feb '41 259
4.83%
0.00%
7 March '39 - Feb '40 199
3.71%
0.00%
8 March '38 - Feb '39 136
2.54%
0.00%
9 Earlier than March 1938 294
5.48%
0.00%
Valid Invalid Min Max Mean
5362 0 -9899 9 -50.97

Representation

Aggregation Method
Unspecified
Temporal
False
Geographic
False

Source Questions

2 b

24 questions before...

Date of baby's birth

Date of birth

Date of birth of last baby (whether alive or dead) preceding this one.

Date of birth
0
NO OLDER CHILD

Result (If baby died, at what age did he die?) DIED AGED ... DAYS

1
BABY LIVING
2
STILL-BORN
Age in days
70 questions after...
View the complete questionnaire

Lineage

  • 1946 The Maternity Services Study Dataset - IBB
    Interval between birth of survey child and previous sibling whether alive or dead
    • Date of birth of last baby (whether alive or dead) preceding this one.