“…The following period between 2000 and 2009 included 17 studies with 970 patients and had a calculated pooled proportion of 32% percent (95% CI 0.243–0.407; I 2 = 82%; p = 0.000) [ 12 , 14 , 22 , 23 , 28 , 29 , 37 , 45 , 48 , 49 , 62 , 67 , 73 , 74 , 85 , 90 , 106 ]. The last period between 2010 and present included 47 studies with 3747 patients [ 1 , 6 , 16 , 18 – 21 , 24 – 27 , 31 , 35 , 36 , 42 , 46 , 47 , 50 , 52 , 53 , 55 , 57 – 59 , 68 , 69 , 71 , 72 , 77 , 78 , 81 – 84 , 87 , 88 , 91 – 95 , 97 , 98 , 100 , 103 – 105 ]. For this period, the pooled percentage for cardiac anomalies was 34% percent (95% CI 0.290–0.392; I 2 = 89%; p = 0.000).…”