Table 1.
Demographics & clinical scales by group.
| HC | BDNP | BDP | SAD | SZ | Statistic | p | |
|---|---|---|---|---|---|---|---|
|
| |||||||
| N | 415 | 66 | 171 | 201 | 225 | ||
| Mean age | 34.74 | 40.39 | 37.20 | 40.32 | 40.03 | F(4,1073) = 11.89*** | <.001 |
| Age SD | 12.50 | 12.16 | 11.72 | 10.98 | 11.66 | ||
| Sex (% F) | 57 | 71 | 54 | 55 | 38 | x2(4) = 31.89*** | <.001 |
| N from each site | x2(16) = 99.27*** | <.001 | |||||
| Boston | 90 | 8 | 25 | 19 | 36 | ||
| Chicago | 51 | 0 | 49 | 45 | 51 | ||
| Dallas | 81 | 25 | 40 | 36 | 46 | ||
| Georgia | 86 | 0 | 16 | 36 | 44 | ||
| Hartford | 107 | 33 | 41 | 65 | 48 | ||
| Number of trials in each waveform average by group | |||||||
| Mean | 114 | 114 | 113 | 113 | 113 | F(4,1073) = .36 .84 | |
| SD | 8.15 | 8.19 | 8.66 | 8.16 | 9.19 | ||
| Global Assessment of Function (GAF) | F(4,942) = 456.38*** | <.001 | |||||
| F(3,606) = 10.84*** | <.001 | ||||||
| N | 337 | 60 | 161 | 184 | 205 | HC > BDNP***, BDP*** > SAD*, SZ*** | |
| M | 83.42 | 57.88 | 56.73 | 53.26 | 50.51 | ||
| SD | 6.61 | 11.40 | 13.47 | 11.15 | 11.54 | ||
| Birchwood Social Functioning Scale (SFS) | F(4,985) = 158.54 | <.001 | |||||
| F(3,605) = 17.82*** | <.001 | ||||||
| N | 381 | 61 | 159 | 187 | 202 | HC > BDNP***, BDP*** > SAD***, SZ* | |
| M | 154.15 | 130.15 | 131.11 | 116.78 | 117.33 | ||
| SD | 17.34 | 20.41 | 23.65 | 22.93 | 21.32 | ||
| Positive and Negative Syndrome Scale (PANSS) Positive | F(3,592) = 22.62*** | <.001 | |||||
| N | N/A | 63 | 157 | 178 | 198 | SZ, SAD > BDP***, | |
| M | N/A | 12.76 | 13.82 | 17.85 | 17.71 | BDNP*** | |
| SD | N/A | 3.64 | 5.86 | 6.92 | 6.29 | ||
| PANSS Negative | F(3,591) = 9.22*** | <.001 | |||||
| N | N/A | 63 | 157 | 178 | 197 | SZ > BDP***, BDNP*, SAD > BDP** | |
| M | N/A | 14.57 | 13.85 | 16.32 | 17.39 | ||
| SD | N/A | 5.86 | 6.44 | 7.16 | 6.71 | ||
| PANSS General | F(3,592) = 1.28 | .28 | |||||
| N | N/A | 63 | 157 | 178 | 198 | ||
| M | N/A | 31.67 | 31.06 | 33.16 | 32.24 | ||
| SD | N/A | 8.83 | 10.59 | 9.87 | 10.00 | ||
| PANSS Total | F(3,591) = 8.18*** | <.001 | |||||
| N | N/A | 63 | 157 | 178 | 197 | SZ, SAD > BDP***, BDNP* | |
| M | N/A | 59.00 | 58.72 | 67.33 | 67.42 | ||
| SD | N/A | 15.84 | 21.12 | 21.39 | 20.15 | ||
| Montgomery-Åsberg Depression Rating Scale (MADRS) | F(3,600) = 8.90*** | <.001 | |||||
| N | N/A | 63 | 159 | 183 | 199 | SZ < SAD***, BDP***, BDNP** | |
| M | N/A | 14.79 | 14.56 | 14.01 | 9.75 | ||
| SD | N/A | 9.33 | 11.82 | 10.70 | 8.94 | ||
| Young Mania Rating Scale (YMRS) | F(3,599) = 1.64 | .18 | |||||
| N | N/A | 63 | 159 | 181 | 200 | ||
| M | N/A | 9.41 | 8.98 | 10.83 | 9.93 | ||
| SD | N/A | 7.10 | 8.82 | 7.95 | 7.28 | ||
Note: HC, Healthy Subjects; SZ, Probands with schizophrenia; SAD, Probands with schizoaffective disorder; BDP, Probands with bipolar disorder I with a history of psychotic symptoms; BDNP, Probands with bipolar disorder I without a history of psychosis symptoms.
For scales with two sets of ANOVA statistics, the first was done including HC, and the second included only probands.
*
p < .05
**
p < .01
***
p < .001.
Group comparisons performed with Tukey tests.