Gender | Subgroup | Number of studies | MD | 95% CI | p value | Study heterogeneity | |||
---|---|---|---|---|---|---|---|---|---|
χ2 | df | p | I2 | ||||||
male | Stent | 2 | -4.25 | −6.20 to −2.30 | <0.001 | 12.28 | 1 | <0.001 | 91.9% |
Non-stent | 3 | −0.61 | −1.43 to 0.22 | 0.148 | 19.22 | 2 | <0.001 | 89.6% | |
Stent removal | 1 | −0.61 | −0.49 to 0.17 | 0.341 | – | – | – | – | |
female | Stent | 2 | −7.17 | −7.88 to −6.47 | <0.001 | 0.33 | 1 | 0.563 | 0.0% |
Non-stent | 3 | 0.53 | −0.52 to 1.57 | 0.322 | 11.24 | 2 | 0.004 | 82.2% | |
Stent removal | 1 | −1.70 | −5.91 to 2.51 | 0.429 | – | – | – | – |