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. 2009 Jan 7;26(1):19–24. doi: 10.1007/s10815-008-9284-4

Table 2.

Comparison of different cycle parameters between the three groups A, B and C: Group A received letrozole, Group B received clomiphene citrate + rFSH and Group C received continuous rFSH

Cycle parameters Letrozole protocol CC-rFSH protocol Continuous rFSH P value
(Group A) (Group B) (Group C)
(n = 372) (n = 669) (n = 346)
Ovulation Rate 79.3% 56.95% 89.89% ab < 0.0001
(295) (381) (311) bc < 0.0001
ca < 0.001
Cancellation rate 20.7% 43.05% 10.11% ab < 0.0001
(77) (288) (35) bc < 0.0001
ca < 0.001
Pregnancy rate 23.39% 14.35% 17.92% ab < 0.0001
(87) (96) (62) bc NS
ca NS
Miscarriage rate 13.80% 16.67% 14.52% ab NS
(12) (16) (9) bc NS
ca NS

ab: Comparison between Group A and Group B

bc: Comparison between Group B and Group C

ca: Comparison between Group C and Group A

NS: Not Significant