The relationship between maternal uterine artery doppler ultrasound during the second and third trimesters and infant cognitive development at one year of age: Findings from a South African prospective cohort study.

Higher maternal UtA-PI in the 2 nd trimester was significantly associated with offspring cognition at one year; the same relationship was observed when examining maternal UtA-PI in the 3 rd trimester, however, this association did not reach statistical significance, despite the stability of UtA-PI between the two time points [ 12 ].

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