Table 1.

Microarray analysis of human embryos

	Age (years)
Observation	36-39	40-45	Total
No. of cases	8	9	17
Total number of embryos biopsied and examined	45	45	90
No. (%)* of embryos with normal chromosomes	11 (24.4)a	3 (6.7)b	14 (15.6)
No. (%)* of embryos with abnormal chromosomes	34 (75.6)a	42 (93.3)b	76 (84.4)
No. (%)** of developing embryos (blastocysts)	25 (55.6)	20 (44.4)	45 (50)
No. (%)** of arrested embryos	20 (44.4)	25 (55.6)	45 (50)

*Percentages of embryos with normal (euploid) or abnormal (aneuploidy) chromosomes.

**Percentages of embryos developed to blastocyst stage or arrested at earlier stages.

^abP <0.05 within the same row.