Table 5.

Mean Scores on Subtests and Sum Scores on the Neuropsychological Test (NEPSY) for the Preterm and Control Children*

SubtestPreterm Children (n = 42)
Mean (SD)
Control Children (n = 42)
Mean (SD)
P Value
Attention and executive functions
1. Inhibition and control (n errors)2.4  (3.6)1.8  (3.0).50
2a. Auditory attention68.0  (2.3)68.3  (1.9).83
2b. Auditory response set66.6  (4.6)68.1  (3.4).02
2c. Knock and tap28.5  (2.9)29.1  (1.5).25
3. Complex visual attention
 (n errors)5.0  (4.9)5.1  (3.4).60
 Time163.8  (65.0)154.0  (54.4).30
Attention sum score I (1 + 3)7.3  (7.2)6.9  (4.5).63
Attention sum score II (2a + 2b + 2c)163.6  (6.1)165.5  (5.3).06
Language
4a. Phonological segmentation23.1  (7.1)24.8  (7.5).32
4b. Comprehension of instructions24.3  (2.0)25.1  (2.1).18
5a. Repetition of nonsense words12.7  (1.1)12.5  (1.9).44
5b. Speeded naming16.4  (3.9)17.9  (3.2).02
 Time120.7  (40.1)98.6  (26.1).01
Language sum score (4a + 4b + 5a + 5b)76.8  (10.0)80.1  (12.3).30
Sensory-motor subtests
6. Tactile finger discrimination
a) Dominant hand12.1  (1.7)12.7  (1.6).08
b) Nondominant hand12.1  (1.7)12.7  (1.2).09
c) Both together (sum score)24.2  (2.9)25.4  (2.2).04
7. Graphomotor precision
 (n errors)2.3  (2.4)3.1  (5.9).88
 Time118.2  (35.9)106.6  (34.0).16
Visuospatial subtests
8. Picture recognition16.4  (3.8)16.9  (2.7).50
9. Block construction10.2  (2.0)11.6  (1.4).002
10. VMI test 15.5  (3.0)17.3  (2.7).008
Visuospatial sum score (8 + 9 + 10)42.0  (6.7)45.7  (5.5).02
Learning and memory
11. Immediate recall
a) Memory for pictures9.0  (2.0)10.3  (1.6).008
b) Memory for faces12.6  (2.2)12.3  (2.1).66
c) Memory for names12.9  (5.0)14.3  (4.6).21
d) List learning (1–5)42.2  (9.5)44.1  (9.9).34
e) Learning curve, improvement from 1 to 56.4  (2.3)7.3  (2.3).11
12. Delayed recall
a) Memory for faces13.1  (2.3)13.0  (2.2).72
b) Memory for names5.0  (2.2)5.5  (1.7).20
c) Memory for list11.6  (2.9)13.0  (2.8).01
Immediate recall sum score (11a + 11b + 11c + 11d)76.8  (13.2)80.7  (12.8).33
Delayed recall sum score (12a + 12b + 12c)29.8  (5.2)31.5  (4.6).13
  • * Significance of the differences between them analyzed with the Wilcoxon rank sum test for matched samples. The higher the score, the better the performance, unless errors or performance time given.

  • VMI (Visual Motor Integration test23).