成熟卵泡數目3個以上才需要施行2次人工授孕

人工授孕AIH
成熟卵泡數目3個以上懷孕率較高(15-20%)
成熟卵泡數目2個以下懷孕率較低(5-10%)
成熟卵泡數目3個以上才有需要施行2次AIH

AIH普遍統計懷孕率約12%
其中多胞胎機率約13%

http://humrep.oxfordjournals.org/content/25/7/1684.full

Table III

LBR in single and double IUI groups.

	Group 1	Group 2	OR (95% CI)	P
LBRs (Per protocol)	10.7% (12/112)	12.3% (14/114)	1.16 (0.51–2.64)	0.835
LBRs (Intention to treat)	10.5% (12/114)	12.3% (14/114)	1.19 (0.52–2.69)	0.835
LBR in unexplained group	11.1% (5/45)	18.4% (9/49)	1.80 (0.55–5.84)	0.393
LBR in male infertility group	10.4% (7/67)	7.7% (5/65)	0.71 (0.21–2.37)	0.764
LBR in CC cycles	11.8% (2/17)	5.3% (1/19)	0.41 (0.03–5.05)	0.593
LBR in FSH cycles	8.6% (7/81)	13.6% (12/88)	1.66 (0.62–4.47)	0.339
LBR in CC + FSF cycles	21.4% (3/14)	14.3% (1/7)	0.61 (0.05–7.24)	0.999
Miscarriage rates	25% (4/16)	30% (6/20)	1.28 (0.29–5.67)	0.52
Multiple pregnancy rates	25% (3/12)	7.1% (1/14)	0.23 (0.02–2.58)	0.208

• Group 1: Single IUI group (N:112), Group 2: Double IUI group (N:114).

Figure 2

LBRs according to dominant follicle number in single and double IUI groups.

LBRs are not statistically different in either group when there is two, three or greater than three dominant follicles.