Association between MTHFR C677T variant and risk for congenital heart defects in Egyptian children: a case–control study including meta-analysis based on 147 cases and 143 controls

Egyptian Journal of Medical Human Genetics

Table 2 The cardiac diagnosis of our clinically examined cases

CHD type* (n = 91)	Number	Approx. percent (%)
AVSD	8	8.8
ASD	10	11
VSD	9	10
Complete A-V canal	6	6.5
Complete A-V canal, ASD or VSD	9	10
TGA, ASD	7	7.6
DORV, ASD or VSD	8	8.8
ASD, valvular aortic stenosis	3	3.3
TOF	21	23
VSD, PS	10	11
Total	91	100

^*AVSD atrioventricular septal defect, ASD atrial septal defects, VSD ventricular septal defects, A-V canal; atrioventricular canal, TGA transposition of the great arteries, DORV double outlet right ventricle, TOF Fallot's tetralogy, PS pulmonary stenosis