Zygotic twins in hh
Datafile
Question asked in the latest wave:
fertilityhistory_w15.twinzygfh
Question label:
Zygotic twins in hh
Question text:
Are [CHILD1] and [CHILD2] identical twins?
Question universe:
if [ANNUALFERTILITYHISTORY.NBORNLWB > 0 | LPRNTADP2 = 1 | GRIDVARIABLES.NNATCH > 0] // Has had biological child(ren) or R has biological children in household
And if [LNPRNT2 > 0] // Has biological children
And if [two biological children with the same DOB or birthdays one day apart] // Potential twins
And if [TwinConf = 1 & ((sex of child 1) = (sex of child 2))] // Twins in household and the twins are of the same sex
Further details:
For further details about this question, please see the questionnaires
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| inapplicable | -8 | 222 | 37.82% |
| refusal | -2 | 1 | 0.17% |
| don't know | -1 | 3 | 0.51% |
| Yes | 1 | 145 | 24.7% |
| No | 2 | 216 | 36.8% |
| Total | 587 | 100.0% |
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