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 |
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| bwtlbfh5 | natchild no. 5: Birthweight in pounds |
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| bwtlbfh6 | natchild no. 6: Birthweight in pounds |
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| bwtlbfh7 | natchild no. 7: Birthweight in pounds |
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| bwtlbfh8 | natchild no. 8: Birthweight in pounds |
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| bwtlbfh9 | natchild no. 9: Birthweight in pounds |
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| bwtoz | Birthweight in ounces |
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| bwtoz1 | Child 1 Birth weight: Ounces |
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| bwtoz2 | Child 2 Birth weight: Ounces |
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| bwtoz3 | Child 3 Birth weight: Ounces |
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| bwtoz4 | Child 4 Birth weight: Ounces |
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| bwtozfh | Birthweight in ounces |
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| bwtozfh1 | natchild no. 1: Birthweight in ounces |
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| bwtozfh2 | natchild no. 2: Birthweight in ounces |
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| bwtozfh3 | natchild no. 3: Birthweight in ounces |
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| bwtozfh4 | natchild no. 4: Birthweight in ounces |
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| bwtozfh5 | natchild no. 5: Birthweight in ounces |
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| bwtozfh6 | natchild no. 6: Birthweight in ounces |
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| bwtozfh7 | natchild no. 7: Birthweight in ounces |
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| bwtozfh8 | natchild no. 8: Birthweight in ounces |
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| bwtozfh9 | natchild no. 9: Birthweight in ounces |
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| bwtpn1 | Child 1 PNO |
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| bwtpn2 | Child 2 PNO |
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| bwtpn3 | Child 3 PNO |
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| bwtpn4 | Child 4 PNO |
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| bwtwk | Weeks early or late (BHPS) |
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| bwtwk1 | Child 1 Weeks early or late |
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| bwtwk2 | Child 2 Weeks early or late |
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| bwtwk3 | Child 3 Weeks early or late |
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| bwtwk4 | Child 4 Weeks early or late |
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| bwtwkfh | Weeks early or late |
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| bwtwkfh1 | natchild no. 1: Weeks early or late |
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| bwtwkfh2 | natchild no. 2: Weeks early or late |
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