| Types of congenital cyanogenic heart disease | Workforce | Percentages (%) |
| Tetralogy of Fallot | 162 | 38.57 |
| Transposition of Big Vessels | 58 | 13.81 |
| Double Issue Right Ventricle | 57 | 13.57 |
| Tricuspid Atresia | 38 | 9.06 |
| Common Arterial Trunk | 27 | 6.43 |
| Single Ventricle | 18 | 4.29 |
| Open Septum Pulmonary Atresia | 16 | 3.81 |
| Complex Cyanogenic Congenital Heart Disease | 14 | 3.33 |
| Total Abnormal Pulmonary Venous Return | 13 | 3.09 |
| Single Headset | 9 | 2.14 |
| Ebstein’s disease | 4 | 0.95 |
| Intact Septum Pulmonary Atresia | 3 | 0.71 |
| Left Ventricle Double Issue + SP + D-MGV | 1 | 0.24 |
| Total | 420 | 100.00 |