PMID- 34287233 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210723 IS - 2409-515X (Electronic) IS - 2409-515X (Linking) VI - 7 IP - 3 DP - 2021 Jul 8 TI - Newborn Screening for Severe Combined Immunodeficiency: Do Preterm Infants Require Special Consideration? LID - 10.3390/ijns7030040 [doi] LID - 40 AB - The Wisconsin Newborn Screening (NBS) Program began screening for severe combined immunodeficiency (SCID) in 2008, using real-time PCR to quantitate T-cell receptor excision circles (TRECs) in DNA isolated from dried blood NBS specimens. Prompted by the observation that there were disproportionately more screening-positive cases in premature infants, we performed a study to assess whether there is a difference in TRECs between full-term and preterm newborns. Based on de-identified SCID data from 1 January to 30 June 2008, we evaluated the TRECs from 2510 preterm newborns (gestational age, 23-36 weeks) whose specimens were collected