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Frequency of exclusion criteria met by ineligible COA cohort*
| Exclusion Criteria | No. (%) |
|---|---|
| Absent Hindbrain Herniation | 7/21 (33.3) |
| Maternal age <18 years | 6/22 (27.3) |
| Multifetal pregnancy | 6/23 (26.1) |
| MMC at level other than T1–S1 | 4/23 (17.4) |
| BMI ≥ 35 | 1/12 (8.3) |
MMC = Myelomeningocele; BMI = Body Mass Index
Data for Hindbrain Herniation, Maternal Age, and BMI of the entire ineligible COA cohort were not available for consideration.
