Table 1.
Results of Comparison of Continuous Variables (Mann–Whitney Wilcoxon Test)
| Results of Mann–Whitney Wilcoxon Test | ||||
|---|---|---|---|---|
| Variable | Drug Studies, Mean (SD) | Psychotherapy Studies, Mean (SD) | W | P |
| Agea | 38.95 (3.78) | 37.42 (4.79) | 13 316 | .031 |
| Duration of illnessa | 14.01 (3.82) | 12.37 (4.79) | 2989.5 | .021 |
| Baseline severityb | 93.97 (7.56) | 71.72 (12.6) | 1222.5 | <.0001 |
| Total sample | 313.53 (185.07) | 76.35 (53.42) | 400.5 | <.0001 |
| Number of study centers | 36.69 (21.65) | 3.33 (2.03) | 155 | <.0001 |
| Study durationc | 6.05 (2.61) | 19.17 (12.35) | 3861.5 | <.0001 |
| Ratio of male participants | 69.96 (11.4) | 61.21 (16.5) | 1046 | .0001 |
Note: aYears.
bPANSS equivalents.
cWeeks.