Table 2.
Demographics of study participants in the Philadelphia Neurodevelopmental Cohort.
| Typically Developing | Psychosis Spectrum | Other Psychopathology | Statistics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| (n=386) | (n=398) | (n=609) | df | x2/t/F | p | Contrasts | ||||
| Gender (F:M) | 189:197 | 211:187 | 332:277 | 2.97 | .227 | -- | ||||
| Ethnicity (W:AA:O) | 213:128:43 | 121:228:48 | 293:248:64 | 59.39 | <.001 | -- | ||||
| Mean | SD | Mean | SD | Mean | SD | |||||
| Age | 14.1 | 3.7 | 15.9 | 3.1 | 14.7 | 3.6 | 2,1390 | 26.01 | <.001 | PS > OP > TD |
| Education | 7.1 | 3.6 | 8.2 | 27 | 7.7 | 3.5 | 2,1390 | 11.30 | <.001 | PS > OP > TD |
| Parental Education | 14.5 | 2.5 | 13.5 | 2.2 | 14.1 | 2.2 | 2,1382 | 20.07 | <.001 | TD > OP > PS |
| Neuropsychological Functioning | ||||||||||
| CNB Composite z-score | 0.07a | 0.02b | −0.02a | 0.02b | 0.05a | 0.02b | 2,1379 | 4.63a | .010 | TD > OP > PS |
| WRAT Standard Score | 105.6 | 15.8 | 98.5 | 16.9 | 102.5 | 15.9 | 2,1387 | 19 20 | <.001 | TD > OP > PS |
Abbreviations: AA=African American; F=Female; M=Male; O=Other; OP= OtherPsychapathology; PS=Psychosis Spectrum; TD=Typically Developing; W=White; WRAT=Wide Range Achievement Test
a
Adjusted for age, sex and parental education
b
Standard Error