Subgroup | No. of groups | RR (95% CI) | P Value | P for heterogeneity | I2 (%) | P for between Subgroup heterogeneity |
---|---|---|---|---|---|---|
Pregnancy rate | Â | Â | Â | Â | 55% | Â |
GnRH-a group | Â | Â | Â | Â | Â | 0.90 |
 Long proposal | 5 | 1.03(0.83–1.28) | 0.76 | 0.67 | 0 |  |
 Short proposal | 14 | 1.02(0.92–1.12) | 0.74 | 1.00 | 0 |  |
Control group | Â | Â | Â | Â | Â | 0.56 |
 Blank | 12 | 0.99(0.87–1.13) | 0.87 | 0.98 | 0 |  |
 Other medications | 7 | 1.05(0.93–1.18) | 0.49 | 0.97 | 0 |  |
Whether ART | Â | Â | Â | Â | Â | 0.62 |
 ART | 7 | 1.01(0.91–1.13) | 0.83 | 0.88 | 0 |  |
 spontaneously | 3 | 1.13(0.73–1.75) | 0.73 | 0.96 | 0 |  |
Study quality | Â | Â | Â | Â | Â | 0.88 |
 High quality | 14 | 1.02(0.92–1.11) | 0.74 | 0.99 | 0 |  |
 Low quality | 5 | 1.04(0.78–1.39) | 0.79 | 0.93 | 0 |  |
live birth rate | Â | Â | Â | Â | 79% | Â |
GnRH-a group | Â | Â | Â | Â | Â | 0.48 |
 Long proposal | 1 | 1.23(0.73–2.06) | 0.44 | NA | NA |  |
 Short proposal | 6 | 1.01(0.88–1.16) | 0.87 | 0.76 | 0 |  |
Control group | Â | Â | Â | Â | Â | 0.30 |
 Blank | 3 | 0.97(0.81–1.15) | 0.71 | 0.54 | 7.6 |  |
 Other medications | 3 | 1.12(0.90–1.39) | 0.30 | 0.88 | 0 |  |
Whether ART | Â | Â | Â | Â | Â | 0.38 |
 ART | 3 | 0.96(0.79–1.16) | 0.65 | 0.55 | 0 |  |
 spontaneously | 1 | 1.23(0.73–2.06) | 0.44 | NA | NA |  |
Study quality | Â | Â | Â | Â | Â | 0.48 |
 High quality | 6 | 1.01(0.88–1.16) | 0.87 | 0.78 | 0 |  |
 Low quality | 1 | 1.23(0.73–2.06) | 0.44 | NA | NA |  |