Table 4.

The mean percentage of gene methylation among groups

Mean value of methylation (%)	Group 1 (n = 3)	Group 2 (n = 3)	Group 3 (n = 3)	Group 4 (n = 3)	Group 5 (n = 3)	Group 6 (n = 3)
H19	38.21 ± 7.10	36.58 ± 6.66	37.79 ± 8.84	38.96 ± 7.37	32.67 ± 11.91	39.21 ± 7.10
IGF2	1.87 ± 1.25	3.73 ± 2.22	3.73 ± 2.96	2.33 ± 1.29	3.07 ± 3.63	1.93 ± 0.59
SNRPN	45.96 ± 5.47	47.67 ± 2.77	47.19 ± 3.01	46.93 ± 3.52	46.63 ± 3.83	47.44 ± 3.50

Group 1: multifoetal reduction after IVF fresh transferred D3 embryos (n = 3); Group 2: multifoetal reduction after IVF frozen transferred D3 embryos (n = 3); Group 3: multifoetal reduction after IVF frozen transferred D5 embryos (n = 3); Group 4: multifoetal reduction after ICSI fresh transferred D3 embryos (n = 3); Group 5: multifoetal reduction after ICSI frozen transferred D3 embryos (n = 3); Group 6: multifoetal reduction after controlled ovarian stimulation (COS) (n = 3)