This dataset contains a subset of the birthweight data used by Abrevaya (2006). It has observations from Arizona and washington, and only some variables are included. The entire (subset) of this data is available in JAE's online data archive.
|momid3||identification number of the mother|
|idx||index number of a mother's birth (starts with 1 and goes|
|to at least 2 for each mother); momid3 and idx together|
|describe the panel structure of the data|
|stateres||code (1 through 51) for state of residence; see the NCHS|
|(National Center for Health Statistics) website for codes|
|dmage||age of mother (in years)|
|dmeduc||education of mother (in years)|
|dbirwt||birthweight (in grams)|
|smoke||indicator variable for smoking status (1=smoker,|
|male||indicator variable for baby gender (1=male, 0=female)|
|year||year of birth (0=1990, ..., 8=1998)|
|married||indicator variable for marital status (1=married,|
|agesq||age of mother squared|
|black||indicator variable for black race (1=black, 0=white)|
|novisit||indicator that no prenatal visit occurred|
|pretri2||indicator that first prenatal visit occurred in 2nd|
|pretri3||indicator that first prenatal visit occurred in 3nd|
A dataframe with 13154 observations and 14 variables
 Abrevaya, J. (2006) Estimating the effect of smoking on birth outcomes using a matched panel data approach. Journal of Applied Econometrics, 21-4, pages 489–519.
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