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Methodological quality graph: review authors' judgements about each methodological quality item presented as percentages across all included studies.
Figures and Tables -
Figure 1

Methodological quality graph: review authors' judgements about each methodological quality item presented as percentages across all included studies.

Methodological quality summary: review authors' judgements about each methodological quality item for each included study.
Figures and Tables -
Figure 2

Methodological quality summary: review authors' judgements about each methodological quality item for each included study.

Comparison 1 Gonadotrophins versus placebo/no treatment for the treatment of idiopathic male subfertility, Outcome 1 Pregnancy Rate per Couple Randomized.
Figures and Tables -
Analysis 1.1

Comparison 1 Gonadotrophins versus placebo/no treatment for the treatment of idiopathic male subfertility, Outcome 1 Pregnancy Rate per Couple Randomized.

Comparison 1. Gonadotrophins versus placebo/no treatment for the treatment of idiopathic male subfertility

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Pregnancy Rate per Couple Randomized Show forest plot

4

278

Peto Odds Ratio (Peto, Fixed, 95% CI)

3.03 [1.30, 7.09]

1.1 Spontaneous Pregnancy Rate Per Couple Randomized

3

234

Peto Odds Ratio (Peto, Fixed, 95% CI)

4.18 [1.38, 12.73]

1.2 Pregnancy Rate Per Couple Randomized After ICSI

1

44

Peto Odds Ratio (Peto, Fixed, 95% CI)

1.93 [0.52, 7.20]

Figures and Tables -
Comparison 1. Gonadotrophins versus placebo/no treatment for the treatment of idiopathic male subfertility