Notes:①indicates P < 0.05 for the fresh embryo transfer group
compared with the NC-FET group; ② indicates P < 0.05 for the
fresh embryo transfer group compared with the HRT-FET group; ③ indicates
P < 0.05 for the NC-FET group compared with the HRT-FET group;
* indicates the fresh embryo group compared with the frozen-thawed
embryo transfer group
Table 2 Comparison of neonatal outcomes of three groups