Table 5. Clinical details of positive microdeletions on cfDNA screening in multifetal gestations.

Positive microdeletion on cfDNA screen	Indication for screening	Gestational age (weeks)	Diagnostic testing	Accuracy of cfDNA results
del22q11	Maternal Age and Ultrasound Finding	28	Confirmed postnatal diagnosis	True positive
del22q11	Ultrasound Finding	34	Declined diagnostic testing	Suspected positive due to clinical findings
del5p15	Maternal Age	10	Confirmed by prenatal diagnosis	True positive
del8q24	Maternal Age	11	Negative prenatal diagnosis	False positive
del8q24	Maternal Age	14	Declined diagnostic testing	Suspected positive due to clinical findings
del15q11	Other high risk	13	Confirmed prenatal diagnosis	True positive