Volta

Breastfeeding Duration and Cognitive Performance Among Youths

Importance: Evidence on the association between breastfeeding duration and cognitive development remains inconsistent, partly due to confounding by socioeconomic status (SES). Whether this association exists across populations with distinct socioeconomic patterning of breastfeeding is unclear. Objectives: To investigate the association between breastfeeding duration and cognitive outcomes among youths in China. Design, Setting, and Participants: This cross-sectional analysis used data from the China Family Panel Studies for youths aged 10 to 15 years who underwent cognitive assessments in 2010, 2014, or 2018 and were born between 1995 and 2009. Data were analyzed from February 2025 to January 2026. Exposures: Breastfeeding duration (≤6 months vs >6 months and continuous). Main Outcomes and Measures: Cognitive performance was assessed using mathematics and word recognition …

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