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Macrosomia

10% of U.S. births.

Refers to a newborn with excessive birth weight.

Diagnosis made at the time of delivery and is confirmed in retrospect only.

Generally defined as a birth weight of 4000-4500 g, equivalent to 8 b 13 oz -9 lb 15 oz, or greater than 90% of gestational age accounting for sex and ethnicity.

Related to genetics, duration of pregnancy, the presence of gestational diabetes.

A risk factor for operative delivery and birth trauma, such as shoulder dystocia.

More common in male babies.

More common in Hispanic patients.

May be related to parental height and weight.

Most newborns do not have defined risk factors.

Associated with neonatal morbidity, neonatal injuries, maternal injuries and C-section rate.

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