From: Intravenous magnesium prevents atrial fibrillation after coronary artery bypass grafting: a meta-analysis of 7 double-blind, placebo-controlled, randomized clinical trials
Subgroup analysis
Studies (n)
Participants (n)
RR (95% CI)
I 2(%)
P heterogeneity
P value
Prospective
5
826
0.63 (0.48-0.83)
0.00
0.7
0.001
Consecutive
4
624
0.56 (0.37-0.83)
0.005
Follow-up
6
924
0.66 (0.51-0.85)
0.8
0.002