Shared unmeasured characteristics among siblings confound the association of Apgar score with stress resilience in adolescence.
Cecilia BerghAyako HiyoshiMats ErikssonKatja FallScott MontgomeryPublished in: Acta paediatrica (Oslo, Norway : 1992) (2019)
The association with low Apgar score seems to be explained by confounding due to shared childhood circumstances among siblings from the same family, while low birthweight is independently associated with low stress resilience.