| Groups | Alive | Lost to Follow up | Deceased | Total in number |
| A" | 8 | 10 | 4 | 22 |
| B" | 2 | 2 | 1 | 5 |
| C" | 10 | 8 | 14 | 32 |
| Total | 20 | 20 | 19 | 59 |