Mainstage Variables search
Find the variables you need for your research by searching by variable name, by data file or by index term. Explore How to use the Variable Search. Our Main Survey User Guide and list of key variables for the analysis of individual response data may also help you.
| Variable | Label | Datafile | Waves |
|---|---|---|---|
| brfed | Breastfeed |
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| brfedend | Age breastfeeding stopped |
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| brfedend2 | Age breastfeeding stopped: unit |
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| bwt | Birthweight |
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| bwtel | Child born early or late |
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| bwtg5 | Birthweight: more than 5.5lbs (2.5kg) |
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| bwtk | Birthweight kilograms |
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| bwtlb | Birthweight in pounds |
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| bwtoz | Birthweight in ounces |
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| bwtwk | Weeks early or late (BHPS) |
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| bwtxp | Child born when expected |
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| chdnbus_xw | newborn weight |
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| childno | Child number |
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| hhorig | Sample origin, household |
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| hidp | Household identifier (public release) |
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| lchal | age natural child left resp. hh |
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| lchborn | where child born - biological |
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| lchchk | Check child's name, sex and DOB |
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lchdobm
Special Licence |
month of birth of non-resident biological child |
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| lchdoby | year of birth of non-resident biological child |
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| lchlv | natural child still lives in resp. hh |
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| lchno | pno of child |
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| lchsx | sex of natural child |
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| lchyd4 | year natural child died: 4 digit |
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| memorig | sample origin: original bhps or echp |
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| pidp | cross-wave person identifier (public release) |
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| pno | person number |
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| psu | primary sampling unit |
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| sampst | sample membership status |
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| strata | stratra |
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