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. 2010 Mar 19;10:31. doi: 10.1186/1471-213X-10-31

Table 4.

Statistical difference tests for promoter DNA methylation.

Embryos Oct4 (%) Nanog (%) Sox2 (%)
Homotype 12.7✶ 16.7 15.6✶
Heterotype 24.3* 18.7 24.3*
IVF 11.5✶ 9*✶ 7.8*✶
IVC 7.6*✶ 7.6*✶ 11.1✶

*: Statistically significant difference compared to the homotype group (p < 0.05) analysed with Chi-square test. ✶ : Statistically significant difference compared to the heterotype group (p < 0.05) analysed with Chi-square test.