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Differences in birth-weight outcomes: A longitudinal study based on siblings

Author

Listed:
  • Bacci, Silvia
  • Bartolucci, Francesco
  • Chiavarini, Manuela
  • Minelli, Liliana
  • Pieroni, Luca

Abstract

Objectives We investigate about the differences in birthweight between firstand second-borns, evaluating the impact of changes in pregnancy (e.g., gestational age), demographic (e.g., age), and social (e.g., education level, marital status) maternal characteristics. Data and Methods All analyses are performed on data collected in Umbria (Italy) taking into account a set of 792 women who delivered twice from 2005 to 2008. Firstly, we use a univariate paired t-test for the comparison between weights of first- and second-borns. Secondly, we use linear and nonlinear regression approaches in order to: (i) evaluate the effect of demographic and social maternal characteristics and (ii) predict the odds-ratio of low and high birthweight infants, respectively. Results We find that the birthweight of second-borns is significantly higher than that of first-borns. Statistically significant effects are related with a longer gestational age, an increased number of visits during the pregnancy, and the gender of infants. On the other hand, we do not observe any significant effect related with mother’s age and with other characteristics of interest.

Suggested Citation

  • Bacci, Silvia & Bartolucci, Francesco & Chiavarini, Manuela & Minelli, Liliana & Pieroni, Luca, 2014. "Differences in birth-weight outcomes: A longitudinal study based on siblings," MPRA Paper 55789, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:55789
    as

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    File URL: https://mpra.ub.uni-muenchen.de/55789/1/MPRA_paper_55789.pdf
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    References listed on IDEAS

    as
    1. Abrevaya, Jason & Dahl, Christian M, 2008. "The Effects of Birth Inputs on Birthweight," Journal of Business & Economic Statistics, American Statistical Association, vol. 26, pages 379-397.
    2. Manuela Chiavarini & Francesco Bartolucci & Alessio Gili & Luca Pieroni & Liliana Minelli, 2012. "Effects of individual and social factors on preterm birth and low birth weight: empirical evidence from regional data in Italy," International Journal of Public Health, Springer;Swiss School of Public Health (SSPH+), vol. 57(2), pages 261-268, April.
    3. repec:aph:ajpbhl:1992:82:5:691-694_6 is not listed on IDEAS
    4. Gary Chamberlain, 1980. "Analysis of Covariance with Qualitative Data," Review of Economic Studies, Oxford University Press, vol. 47(1), pages 225-238.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    Birthweight; Maternal characteristics; Standard Certificate of Live Birth;

    JEL classification:

    • I00 - Health, Education, and Welfare - - General - - - General

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