highly significantP = 0.0002
Furthermore, they did a subgroup analysis on further cleaved and uncleaved embryos-’revealed that highly significant pregnancy rates were observed when ≥2 cleaved embryos were transferred (42.2%) than when 1 cleaved embryo (16.9%, P = 0.0002) or embryos without cleavage were transferred (3.2%, P ≤ 0.0001)’.