Table 5.

Clinical pregnancy and live birth rates per case in patients in Group IVF categorized into four groups by possible etiological factors.

	Patients with POI Classified by Etiological Factors
	Group IVF-1 (Idiopathic)	Group IVF-2 (Iatrogenic-1)	Group IVF-3 (Iatrogenic-2)	Group IVF-4 (Chromosomal abnormality)
Clinical pregnancy rate	17.8% (53/297)	16.0% (8/50)	0.0% (0/17)	9.1% (2/22)
Live birth rate	13.1% (39/297)	14.0% (7/50)	0.0% (0/17)	4.5% (1/22)

Group IVF, patients in whom ovarian stimulation and IVF-ET were attempted; Group IVF-1 (idiopathic), patients without possible iatrogenic causes or chromosomal abnormalities; Group IVF-2 (iatrogenic-1), patients with past surgery for benign ovarian tumors; Group IVF-3 (iatrogenic-2), patients with past treatment for malignancy; Group IVF-4 (chromosomal abnormality), patients with chromosomal abnormalities.