| Male | Female | Sum | Group | |||
| % | Number | % | Number | % | Number | |
| 31.4 | 33 | 37.8 | 17 | 33.3 | 50 | Control |
| 38.1 | 37 | 24.5 | 13 | 33.3 | 50 | Schizophrenia |
| 36.1 | 35 | 28.3 | 15 | 33.3 | 50 | Bipolar I disorder |
| 100 | 105 | 100 | 45 | 100 | 150 | Sum |
| Pearson chi-square = 0/762, P-Value = 0/683 | Analysis | |||||