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Table 2 The pooled estimates of baseline characteristics and secondary outcomes

From: Arterial duct stent versus surgical shunt for patients with duct-dependent pulmonary circulation: a meta-analysis

Parameters Studies Participants RR/MD 95% CI p value Model Heterogeneity
I2 (%) p value
Baseline characteristics         
Age 6 757 0.64 − 1.98, 3.26 0.63 Random 96  < 0.001
Weight 6 757 0.07 − 0.03, 0.17 0.18 Random 79  < 0.001
Conduit size 4 345 − 0.44 − 1.72, 0.83 0.50 Random 99  < 0.001
Cardiac anomaly         
 PAIVS 4 667 1.67 0.73, 3.85 0.23 Random 95  < 0.001
 PAVSD 2 611 0.79 0.18, 3.46 0.75 Random 95  < 0.001
 TOF/DORV 4 371 0.58 0.35, 0.96 0.03 Random 0 0.62
 TGA 3 344 1.24 0.73, 2.13 0.42 Random 0 0.64
 TA 4 701 0.50 0.28, 0.90 0.02 Random 0 0.48
Ventricle physiology         
 Single ventricle 4 701 0.82 0.68, 0.98 0.03 Fixed 0 0.50
 Double ventricle 4 701 1.23 1.07, 1.41 0.004 Fixed 47 0.13
Perioperative outcomes         
 Procedural complications 4 476 0.49 0.30, 0.81 0.005 Fixed 0 0.46
 Unplanned reintervention 5 727 1.20 0.56, 2.56 0.64 Random 77 0.005
 Early mortality 5 505 0.70 0.28, 1.76 0.44 Fixed 3 0.39
 ICU stay 2 611 − 4.00 − 5.96, − 2.04  < 0.001 Random 98  < 0.001
Follow-up outcomes         
 Time to repair 5 722 − 23.43 − 57.73, 10.87 0.18 Random 95  < 0.001
 Diameter of LPA 2 289 − 0.39 − 0.68, − 0.11 0.006 Random 65 0.09
 Diameter of RPA 2 289 0.49 − 0.30, 1.27 0.22 Random 96  < 0.001
 Nakata index 4 673 7.32 − 13.89, 28.52 0.50 Random 96  < 0.001
 McGoon ratio 2 62 0.10 − 0.13, 0.33 0.39 Fixed 0 1.00
 SaO2 5 400 0.23 − 2.37, 2.83 0.86 Random 79  < 0.001
  1. RR risk ratio, MD mean difference, CI confidential interval, PAIVS pulmonary atresia with intact ventricular septum, PAVSD pulmonary atresia with ventricular septum defect, TOF tetralogy of Fallot, DORV double outlets of right ventricle, TGA transposition of great arteries, TA tricuspid atresia, ICU intensive care unit, LPA left pulmonary artery, RPA right pulmonary artery, SaO2 oxygen saturation