Trends in Anemia and Iron Deficiency Among Nonpregnant U.S. Women of Reproductive Age, 1999–2023

In a population-based cohort of U.S. nonpregnant reproductive-aged women, the prevalence of anemia and IDA increased substantially between 1999-2000 and 2021-2023. The prevalence of iron deficiency remained high and showed no significant change over this period. Given that iron deficiency and anemia are important causes of disability, these findings may inform future screening policies for these conditions in nonpregnant reproductive-aged women.