Table 1.
Results of stepwise regression 1.
| Variable | Unstandardized β | Standard Error | Standardized β | t | p-Value | 95% Confidence Interval |
|---|---|---|---|---|---|---|
| Somatic concern | -0.253525** | 0.078032 | -0.171 | -3.249 | 0.001 | -0.407828 - -0.099222 |
| Anxiety | 0.413167† | 0.082008 | 0.411 | 5.038 | 0.000 | 0.251002 - 0.575332 |
| Emotional withdrawal | -0.351087** | 0.106518 | -0.324 | -3.296 | 0.001 | -0.561719 - -0.140454 |
| Conceptual disorganization | 0.358483† | 0.069136 | 0.353 | 5.185 | 0.000 | 0.221771 - 0.495195 |
| Grandiosity | -0.189250* | 0.088471 | -0.099 | -2.139 | 0.034 | -0.364195 - -0.014304 |
| Hostility | 0.166995 | 0.104009 | 0.140 | 1.606 | 0.111 | -0.038676 - 0.372666 |
| Suspiciousness | -0.152787 | 0.091570 | -0.164 | -1.669 | 0.097 | -0.333861 - 0.028287 |
| Hallucinations | 0.162475** | 0.057716 | 0.204 | 2.815 | 0.006 | 0.048346 - 0.276605 |
| Motor retardation | 0.258352** | 0.090433 | 0.190 | 2.857 | 0.005 | 0.079527 - 0.437178 |
| Uncooperativeness | 0.262802* | 0.109879 | 0.239 | 2.392 | 0.018 | 0.045524 - 0.480081 |
| Unusual thought content | 0.147787* | 0.073080 | 0.162 | 2.022 | 0.045 | 0.003277 - 0.292296 |
| Blunted affect | 0.139060 | 0.079696 | 0.095 | 1.745 | 0.083 | -0.018534 - 0.296652 |
| Constant | 1.138607 | 0.256029 | 4.447 | 0.000 | 0.632328 - 1.644886 | |
*p < 0.05, **p < 0.01, †p < 0.001
Results of backward stepwise regression using the full set of variables of the BPRS. Eight items of the BPRS as independent variables were positively associated with the CGI-SCH score as a dependent variable, and four items were inversely associated with the CGI-SCH score. F-value < 2.000 as a criterion for removal (p < 0.001). R-squared was 0.7524 (p value of analysis of variance was less than 0.001), unstandardized β, standardized β, and the p value are shown.
Data for schizophrenic patients (n = 150)