Table 3.

Results of group wise meta-analysis of cardiac MRI methods.

Study	HR	SE	95% CI	z	P	Weight (%)
Late gadolinium enhancement scar imaging
Murtagh G.	1.14	0.291	0.570 to 1.710			45.75
Kato S.	7.913	2.019	3.956 to 11.870			7.55
Pöyhönen P.	1.027	0.262	0.514 to 1.540			46.7
Total (fixed effects)	1.141	0.194	0.761 to 1.520	5.887	<0.001	100
Total (random effects)	1.598	0.601	0.421 to 2.776	2.662	0.008	100
Test for heterogeneity
Q	11.4438
DF	2
Significance level	P = 0.0033
I2 (inconsistency)	82.52%
95% CI for I2	46.43 to 94.30
T1-mapping and other relaxometry techniques
Kanagala P.	1.689	0.431	0.845 to 2.533			15.61
Schelbert E.B.	1.75	0.446	0.875 to 2.625			14.65
Duca F.	1.099	0.28	0.549 to 1.649			32.12
Mascherbauer J.	0.99	0.253	0.495 to 1.485			37.62
Total (fixed effects)	1.221	0.161	0.906 to 1.536	7.606	<0.001	100
Total (random effects)	1.245	0.18	0.892 to 1.599	6.906	<0.001	100
Test for heterogeneity
Q	3.6099
DF	3
Significance level	P = 0.3068
I2 (inconsistency)	16.90%
95% CI for I2	0.00 to 89.27
Others CMR methods including ischaemia assessment
Kanagala P.	1.92	0.49	0.960 to 2.880			57.45
Aschauer S.	4.9	1.25	2.450 to 7.350			42.55
Total (fixed effects)	2.317	0.456	1.423 to 3.210	5.08	<0.001	100
Total (random effects)	3.188	1.473	0.300 to 6.076	2.164	0.03	100
Test for heterogeneity
Q	4.927
DF	1
Significance level	P = 0.0264
I2 (inconsistency)	79.70%
95% CI for I2	12.50 to 95.29

Abbreviations: CI, confidence interval; DF, degree of freedom; FU, follow-up (in months); HR, hazard ratio; MRI, magnetic resonance imaging; Q, chi-squared statistic; SE, standard error.