Schizophrenia (Gottesman)
The data on the risk posed to relatives of people with schizophrenia comes from the work of Irving I. Gottesman.
The table below shows Gottesman's famous findings, these are the average risks complied from the family and twin studies conducted in European populations between 1920 and 1987.
You need to commit each one to memory.
The table below shows Gottesman's famous findings, these are the average risks complied from the family and twin studies conducted in European populations between 1920 and 1987.
You need to commit each one to memory.
| Relationship to person with schizophrenia | Risk of developing schizophrenia (lifetime risk) |
|---|---|
| General population | 1% |
| First cousin | 2% |
| Uncle/aunt | 2% |
| Nephew/niece | 4% |
| Grandchildren | 5% |
| Parents | 6% |
| Half sibling | 6% |
| Full Sibling | 9% |
| Children | 13% |
| Fraternal twins | 17% |
| Offspring of duel matings (both parents had schizophrenia) | 46% |
| Identical twins | 48% |
