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Determine whether the negative impact of the COVID‐19 pandemic on weight gain trajectories among children attending well‐child visits in New York City persisted after the public health restrictions were reduced.

Multicenter retrospective chart review study of 7150 children aged 3–19 years seen for well‐child care between 1 January 2018 and 4 December 2021 in the NYC Health and Hospitals system. Primary outcome was the difference in annual change of modified body mass index z‐score (mBMIz) between the pre‐pandemic and early‐ and late‐pandemic periods. The mBMIz allows for tracking of a greater range of BMI values than the traditional BMI z‐score. The secondary outcome was odds of overweight, obesity, or severe obesity. Multivariable analyses were conducted with each outcome as the dependent variable, and year, age category, sex, race/ethnicity, insurance status …