Validation and implementation of array comparative genomic hybridisation as a first line test in place of postnatal karyotyping for genome imbalance

Table 3 Results from diagnostic service.

	All oligo arrays (service)	Oligo arrays following normal karyotype	Oligo arrays as first line test
Total patients	2414	1245	1169
Abnormal patients	585 (24%)	325 (26%)	260 (22%)
- inherited	169	97	72
- de novo	63	52	11
- unknown inheritance	353	176	177

ISSN: 1755-8166