{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,9]],"date-time":"2026-11-09T16:51:51Z","timestamp":1794243111703,"version":"4.9.0"},"reference-count":75,"publisher":"American Society of Hematology","issue":"16","content-domain":{"domain":["ashpublications.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,8,25]]},"abstract":"<jats:sec>\n                    <jats:title>Abstract<\/jats:title>\n                    <jats:p>Maternal iron deficiency (ID) affects nearly 85% of all pregnancies worldwide by the third trimester and is strongly linked with maternal morbidity, poor birth outcomes, and cognitive and behavioral developmental deficits in children. Despite its burden on maternofetal health, no guidelines exist for routine screening of ID in pregnant individuals in the United States. The World Health Organization uses a diagnostic (ie, nonscreening) ferritin threshold of 15 \u03bcg\/L for ID in the first trimester of pregnancy, with no guidance for the second and third trimesters. Routine screening for ID in pregnancy could identify a large proportion of mothers who remain undiagnosed and untreated under the current clinical status quo. Accordingly, we conducted, to our knowledge, the first cost-effectiveness analysis of ferritin-based ID screening in pregnant women in the United States, comparing thresholds of (1) 30 \u03bcg\/L vs (2) 15 \u03bcg\/L vs (3) no screening from a modified US societal perspective accounting for wages lost to infusion time, infusion administration costs, and the cost of annual hematology follow-up. We found that screening at 30 \u03bcg\/L was the preferred strategy across extensive base-case, threshold, and sensitivity analyses and across all examined willingness-to-pay thresholds, with an incremental cost-effectiveness ratio of $34\u2009000\/quality-adjusted life year (QALY; 95% credible interval, $32\u2009000-$36\u2009200\/QALY) compared with no screening. No parameter variation changed this outcome, and screening at 30 \u03bcg\/L was favored in 100% of 10\u2009000 Monte Carlo iterations. Population-level regular second- and third-trimester screening for ID using physiologically informed ferritin ranges should be considered for all pregnant women in the United States.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1182\/bloodadvances.2026020143","type":"journal-article","created":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T11:45:56Z","timestamp":1779968756000},"page":"5644-5652","update-policy":"https:\/\/doi.org\/10.1182\/blood.2019cm0000","source":"Crossref","is-referenced-by-count":4,"title":["Cost-effectiveness of iron deficiency screening in pregnancy across ferritin-based thresholds"],"prefix":"10.1182","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9336-4123","authenticated-orcid":false,"given":"Daniel","family":"Wang","sequence":"first","affiliation":[{"name":"1Yale School of Medicine, New Haven, 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