Table 2 Wechsler Preschool and Primary Scale of Intelligence, 4th edition total and index scores and NEPSY-II subtest scores in 527 children 4 years of age by being socially withdrawn or not in infancy
WPPSI-IV, 42–47 months | Infants with social withdrawal behaviour n = 61 | Infants without social withdrawal behaviour n = 466 | mean diff (95%CI)a | mean diff (95%CI)b |
|---|---|---|---|---|
crude | Adjusteda | |||
Full scale | 84.3 (8.3) | 84.8 (8.6) | -0.5 (-2.8, 1.8) | 0.5 (-2.2, 2.3) |
Verbal comprehension index | 82.5 (6.5) | 84.2 (8.0) | -1.7 (-3.8, 0.4) | -1.4 (-3.5, 0.7) |
Visuo-spatial index | 86.6 (8.4) | 85.5 (8.4) | 1.2 (-1.1, 3.4) | 1.6 (-0.7, 3.9) |
Working-memory index | 102.0 (14.6) | 103.8 (13.1) | -1.8 (-5.4, 1.7) | -0.9 (-4.4, 2.7) |
NEPSY-II, 42–47 months | ||||
Affect recognition | 8.2 (2.0) | 8.1 (2.0) | 0.1 (-0.5, 0.6) | 0.3 (-0.3, 0.8) |
Geometric puzzles | 9.1 (2.9) | 9.1 (2.8) | 0.01 (-0.7, 0.8) | 0.3 (-0.5, 1.0) |
Statue | 9.8 (3.3) | 10.3 (3.3) | -0.4 (-1.1, 0.4) | -0.3 (-1.2, 0.6) |