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Objective
This study aimed to identify predictors of parenting difficulties at 18 months from the results of the 4‐, 6–7‐, and 9–10‐month infant health checkups among caregivers who had not experienced difficulties at 4 months.
Design and Samples
This retrospective study used data from infant health checkups conducted in a city in Tokyo from November 2019 to October 2021. The participants were...