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. 2021 May 11;161(3-4):120–131. doi: 10.1159/000514088

Table 3.

Relationship between clinical factors and abnormal chromosomes

Clinical factor Abnormal embryonic karyotype, n (%)
Triploidy Aneuploidy Segmental aneuploidy Complex abnormality Total
Maternal age, years
 ≤29 3 (5.77) 39 (75.00) 8 (15.38) 2 (3.85) 52 (100.00)
 30–36 6 (7.32) 69 (84.14) 1 (1.22) 6 (7.32) 82 (100.00)
 ≥37 2 (6.45) 27 (87.10) 0 (0.00) 2 (6.45) 31 (100.00)
Spontaneous abortions, n
 1 2 (3.64) 42 (76.36) 5 (9.09) 6 (10.91) 55 (100.00)
 2 4 (5.97) 57 (85.07) 2 (2.99) 4 (5.97) 67 (100.00)
 ≥3 5 (l1.63) 36 (83.72) 2 (4.65) 0 (0.00) 43 (100.00)
Conception
 ET group 1 (2.7) 33 (89.19) 0 (0.00) 3 (8.11) 37 (100.00)
 NC group 10 (7.81) 102 (79.69) 9 (7.03) 7 (5.47) 128 (100.00)

ET, embryo transfer; NC, natural cycle.