Decline in the negative association between low birth weight and cognitive ability

15 Nov 2016Alice Goisis, Berkay Özcan, and Mikko Myrskylä

The results show that the association between low birth weight and decreased cognitive ability has declined between the 1950s and 1970s birth cohorts and the 2000--2002 birth cohort, despite a higher proportion of the low-birth-weight babies having a very low birth weight (<1,500 g) in the more recent birth cohort. Advancements in obstetric and neonatal care may have attenuated the negative consequences associated with being born small.

Cohort Study
1 effect
2 years
18818 subjects

Reported Outcomes


Low birth weight Maternity outcome
Low birth weight
Maternity system

Cognitive deficit Brain outcome
Minor increase risk of Cognitive deficit
Brain system

High evidence