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Relationship inference criteria based on estimating kinship coefficients (ϕ) and probability of zero IBD sharing (π0)
| Relationship | ϕ | Inference criteria | π0 | Inference criteria |
|---|---|---|---|---|
| Monozygotic twin |  |
 |
0 | <0.1 |
| Parent–offspring |  |
( ,
|
0 | <0.1 |
| Full sib |  |
( ,
|
 |
(0.1,0.365) |
| 2nd Degree |  |
( ,
|
 |
(0.365,
|
| 3rd Degree |  |
( ,
|
 |
( ,
|
| Unrelated | 0 |  |
1 |  |
