Table 3.
Multinomial logistic regression analysis of Single and Multiple/Recurrent Psychosis.
| Psychosis category | Variable | OR | 95% CI | Wald χ2 (df = 1) | P value |
|---|---|---|---|---|---|
| Single | Age | 1.053 | (1.016, 1.092) | 8.083 | .004 |
| Age of onset | 0.960 | (0.926, 0.995) | 5.047 | .025 | |
| Sex | 0.799 | (0.633, 1.010) | 3.515 | .061 | |
| Race | |||||
| Caucasian | 0.457 | (0.233, 0.898) | 5.168 | .023 | |
| African-American | 0.834 | (0.398, 1.750) | 0.230 | .632 | |
| Othera | |||||
| Hispanic origin | 0.520 | (0.263, 1.029) | 3.524 | .061 | |
| Primary language | 1.925 | (0.901, 4.110) | 2.862 | .091 | |
| Education | 0.965 | (0.932, 0.999) | 4.181 | .041 | |
| MMSE | 0.969 | (0.951, 0.987) | 10.924 | .001 | |
| Hachinski | 0.972 | (0.895, 1.056) | 0.437 | .508 | |
| GDS | 1.051 | (1.007, 1.096) | 5.179 | .023 | |
| APOE ϵ4 allele number | |||||
| 0 | 0.778 | (0.542, 1.115) | 1.867 | .172 | |
| 1 | 0.815 | (0.575, 1.154) | 1.329 | .249 | |
| 2a | |||||
| Multiple/Recurrent | Age | 1.078 | (1.034, 1.123) | 12.485 | <.001 |
| Age of onset | 0.914 | (0.876, 0.953) | 17.716 | <.001 | |
| Sex | 0.847 | (0.631, 1.136) | 1.233 | .267 | |
| Race | |||||
| Caucasian | 0.311 | (0.151, 0.642) | 9.977 | .002 | |
| African-American | 1.008 | (0.455, 2.232) | 0.000 | .985 | |
| Othera | |||||
| Hispanic origin | 0.457 | (0.207, 1.007) | 3.774 | .052 | |
| Primary language | 1.157 | (0.495, 2.703) | 0.113 | .736 | |
| Education | 0.974 | (0.935, 1.014) | 1.654 | .198 | |
| MMSE | 0.911 | (0.892, 0.931) | 71.322 | <.001 | |
| Hachinski | 1.039 | (0.948, 1.140) | 0.673 | .412 | |
| GDS | 1.077 | (1.025, 1.132) | 8.489 | .004 | |
| APOE ϵ4 allele number | |||||
| 0 | 0.817 | (0.518, 1.290) | 0.751 | .386 | |
| 1 | 0.999 | (0.647, 1.541) | 0.000 | .996 | |
| 2a | |||||
Abbreviations: MMSE, Mini-mental state exam; GDS, Geriatric depression scale; APOE, Apolipoprotein E.
aReference group.