Utilization of traditional herbal medicine formulas for unexplained female infertility in Korea: a retrospective study

Table 4 Pregnancy outcomes

Outcome	N (%)
Clinical pregnancy^a	49 (10.82%)
Pregnancy maintenance (12 weeks)^b	38 (8.39%)
Total	453 (100%)

^aPresence of at least one gestational sac with the fetal heart rate confirmed by ultrasonography at 5–6 weeks of pregnancy
^bPresence of fetal cardiac activity beyond 12 weeks of gestation

ISSN: 2662-7671