| Family Dysfunction Group | Yes | No | Total | |||
| Number | Percent | Number | Percent | Number | Percent | |
| Control group | 0 | 0% | 50 | 35.5% | 50 | 33.3% |
| Schizophrenia | 8 | 88.9% | 42 | 29.8% | 50 | 33.3% |
| Bipolar I disorder | 1 | 11.1% | 49 | 34.8% | 50 | 33.3% |
| Total | 9 | 100% | 141 | 100% | 150 | 100% |
| The test statistic probability | Fishers exact test = 11.421, P-value = 0.002 | |||||