Table 5Cochrane review, estrogen inhibitors alone in anovulation44

InterventionsNEfficacy
Clinical Pregnancy Ongoing Pregnancy/Live Birth
Relative EffectLower 95% CIUpper 95% CIRelative EffectLower 95% CIUpper 95% CI
Clomiphene vs. placebo
ReferencePlacebo63
Clomiphene705.771.5521.5---
3 studies, all pre-2000
Clomiphene vs. tamoxifen
ReferenceTamoxifen91
Clomiphene901.000.482.09---
2 studies, 1 post-2000
Clomiphene + tamoxifen vs. clomiphene
ReferenceClomiphene10
Clomiphene + tamoxifen103.320.1291.6---
1 study, pre-2000
Letrozole vs. anastrozole
ReferenceAnastrozole18
Letrozole221.880.408.88---
1 study, post-2000

From: 3, Results

Cover of Effectiveness of Assisted Reproductive Technology
Effectiveness of Assisted Reproductive Technology.
Evidence Reports/Technology Assessments, No. 167.
Myers ER, McCrory DC, Mills AA, et al.

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