Table 1

Number of artificial fertilization per conception age and first conception

Scale	Number of artificial fertilization per conception	First conception age*
Small (n=65)	1.39±0.32	18.33±4.74
Medium (n=263)	1.50±0.37	21.14±19.50
Large (n=239)	1.43±0.23	-
Average	1.45	20.87

^*초종부 월령 = (초산분만월령-임신기간) * 1수태당 인공수정회수

Journal of Embryo Transfer 2017;32:171-6 https://doi.org/10.12750/JET.2017.32.3.171