| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Chronic major depressive disorder, single episode | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Moderate major depression, single episode | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Single episode of major depression in full remission (disorder) | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Severe major depression, single episode, with psychotic features, mood-incongruent | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Major depressive disorder, single episode with postpartum onset | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Major depressive disorder, single episode with atypical features | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Major depressive disorder, single episode with melancholic features | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Major depressive disorder, single episode with catatonic features | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Major depression single episode, in partial remission | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Severe major depression, single episode, without psychotic features | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Severe major depression, single episode, with psychotic features, mood-congruent | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Mild major depression, single episode | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Severe major depression, single episode | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Moderately severe major depression single episode (disorder) | Is a | True | Major depression, single episode | Inferred relationship | Some |  | 
| Minimal major depression single episode (disorder) | Is a | True | Major depression, single episode | Inferred relationship | Some |  |