Table 4.
Positive and Negative Syndrome Scale scores of patients with schizophrenia
| Subgroups/domains | Group BPI (n=21) | Group (NCI) (n=19) | Change in BPI group (A) | Change in NCI group (B) | Test of significance A versus B (t, P) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Pre-BPI | Post-BPI | Tests of significance (t, P) | Pre-NCI | Post-NCI | Tests of significance (t, P) | ||||
| Positive score, mean±SD | 11.33±3.89 | 9.25±3.72 | 3.161, 0.0044* | 11.30±6.20 | 9.52±4.70 | 3.343, 0.0029* | 2.08±3.23 | 1.78±2.56 | 0.3519, 0.7266 |
| Negative score, mean±SD | 15.79±8.42 | 12.42±6.78 | 4.940, 0.0001* | 14.26±8.59 | 11.78±5.55 | 2.303, 0.0311* | 3.38±3.35 | 2.48±5.16 | 0.7122, 0.480 |
| General psychopathology score, mean±SD | 28.71±11.90 | 23±9.06 | 4.843, 0.0001* | 24.91±11.36 | 21.65±8.79 | 2.662, 0.0141* | 5.71±5.77 | 3.26±5.86 | 1.444, 0.1556 |
| Total, mean±SD | 55.88±21.72 | 45.13±16.72 | 5.575, 0.0001* | 50.48±24.45 | 42.61±17.31 | 3.056, 0.0058* | 10.75±9.45 | 7.87±12.35 | 0.9002, 0.3728 |
*P<0.05 indicates statistically significant change. BPI – Brief psychosocial intervention; NCI – Nonspecific control intervention; SD – Standard deviation