Table 3 Stepwise regression analyses: The significant main effects and interactions for groups and perinatal complications on executive function, as measured by the Wisconsin Card Sorting Test (WCST) and the D-KEFS Color-Word Interference Test (CWIT)
From: Perinatal complications and executive dysfunction in early-onset schizophrenia
EF measure | Independent variables | Statistics (N = 65–71) |  |
|---|---|---|---|
WCST Trials to complete first category | Group | B 0.20 β 0.23 t 3.90 *** | Adj. R2 .24 |
OC: Emergency cesarean section | B 0.16 β 0.19 t 1.80 | ||
Group x OC | B 0.33 β 0.39 t 3.76 *** # | ||
Group | B 0.25 β 0.29 t 2.77 ** | Adj. R2 .25 | |
OC: Vacuum | B 0.26 β 0.30 t 2.91 ** | ||
Group x OC | B 0.40 β 0.42 t 3.97 *** # | ||
Group | B 0.15 β 0.16 t 1.51 | Adj. R2 .23 | |
OC: Gestational length | B − 0.10 β −0.12 t − 0.97 | ||
Group x OC | B − 0.34 β − 0.47 t − 4.42 *** # | ||
Group | B 0.17 β 0.28 t 2.43 * | Adj. R2 .15 | |
OC: Baby’s length | B 0.06 β 0.10 t 0.67 | ||
Group x OC | B 0.33 β 0.34 t 2.34 * # | ||
WCST Total errors | Group | B 0.27 β 0.29 t 2.64 * | Adj. R2 .19 |
OC: Apgar 5-min | B − 0.17 β −0.18 t − 1.44 | ||
Group x OC | B 0.33 β 0.43 t 3.55 *** # | ||
WCST Perseverative responses | Group | B 0.28 β 0.29 t 2.65 * | Adj. R2 .18 |
OC: Apgar 5-min | B − 0.19 β −0.19 t − 1.58 | ||
Group x OC | B 0.32 β 0.42 t 3.41 *** £ | ||
WCST Perseverative errors | Group | B 0.23 β 0.24 t 2.18 * | Adj. R2 .14 |
OC: Apgar 5-min | B − 0.13 β −0.13 t − 1.05 | ||
Group x OC | B 0.30 β 0.39 t 3.09 ** # | ||
CWIT Inhibition Corrected errors | Group | B 0.15 β 0.15 t 1.32 | Adj. R2 .10 |
OC: Forceps | B 0.12 β 0.12 t 1.02 | ||
Group x OC | B 0.39 β 0.35 t 3.06 ** # | ||
CWIT Switching Total errors | Group | B 0.09 β 0.09 t 0.79 | Adj. R2 .11 |
OC: Forceps | B 0.08 β 0.08 t 0.67 | ||
Group x OC | B 0.37 β 0.33 t 2.84 ** # | ||
CWIT Switching Corrected errors | Group | B 0.19 β 0.18 t 1.62 | Adj. R2 .11 |
OC: Forceps | B 0.13 β 0.13 t 1.15 | ||
Group x OC | B 0.39 β 0.35 t 3.07 ** # |