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Table 3 Results of meta-analysis for secondary outcomes

From: The effectiveness of intra-aortic balloon pump for myocardial infarction in patients with or without cardiogenic shock: a meta-analysis and systematic review

Outcomes No. of studies OR (95 % CI) P
30-day bleeding
 High-risk PCI without CS 2 1.585 (1.124, 2.235) 0.009*
 MI with CS 1 0.992 (0.668, 1.472) 0.967
 MI without CS 2 2.451 (0.826, 7.273) 0.106
 Total 5 1.391 (0.864, 2.238) 0.174
30-day reinfarction rate
 High-risk PCI without CS 2 0.851 (0.517, 1.400) 0.525
 MI with CS 1 2.273 (0.692, 7.464) 0.176
 MI without CS 1 0.530 (0.047, 6.028) 0.609
 Total 4 0.964 (0.614, 1.514) 0.875
30-day revascularization rate
 High-risk PCI without CS 2 0.749 (0.180, 3.118) 0.691
 MI with CS 1 0.883 (0.501, 1.554) 0.665
 MI without CS 1 2.204 (0.194, 25.071) 0.524
 Total 4 0.900 (0.538, 1.505) 0.688
30-day stroke rate    
 High-risk PCI without CS 2 7.959 (0.974, 65.021) 0.053
 MI with CS 1 0.393 (0.076, 2.043) 0.267
 MI without CS 1 3.323 (0.342, 32.271) 0.301
 Total 4 1.576 (0.511, 4.861)  
  1. Abbreviations: CS cardiogenic shock, MI myocardial infarction
  2. * P < 0.05