Depressive Disease can run in the
families. The parents, siblings and children of a depressed person are at a higher risk of
developing clinically diagnosable Depressive Disease than those persons who do not have a
depressed patient in their families.
Risk of Developing Depressive
- General Population= 3%
- If one person has Depressive Disease then other siblings= 13%
- Parents= 15%
- Children when one parent has Depressive Disease= 20%
- Children when both parents have Depressive Disease.= 50%
- Monozygotic twins= 70%
Certain chromosomes have been implicated
in the transmission of the Depressive Disease. The chromosomes carry the gene, which makes
the person predisposed for Depressive Disease.
| Genetic | Bio-chemical
| Psychological | Social factors |