Table 2.

Sensitivity Analysis and Publication bias

	SMD Fluctuation	95% CI Fluctuation	Publication bias (P value)
Before and after XEN surgery
IOP	1.65 ~ 1.71	1.49 ~ 1.88	0.298
Medication	2.06 ~ 2.14	1.80 ~ 2.41	0.597
Before and after phaco-XEN surgery
IOP	1.60 ~ 1.72	1.37 ~ 1.99	0.007
Medication	2.13 ~ 2.28	1.78 ~ 2.65	0.048
XEN vs. phaco-XEN surgery
IOP before surgery	0.25 ~ 0.33	0.11 ~ 0.50	0.162
IOP after surgery	-0.21 ~ 0.02	-0.13 ~ 0.13	0.405
Medication before surgery	0.28 ~ 0.35	0.11 ~ 0.54	0.970
Medication after surgery	0.82 ~ 0.14	-0.07 ~ 0.28	0.014