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. Author manuscript; available in PMC: 2020 Oct 22.
Published in final edited form as: J Int Neuropsychol Soc. 2016 Aug 30;22(8):804–815. doi: 10.1017/S1355617716000680

Table 4.

Demographic and medical descriptions for each cluster

Demographic characteristics Cluster 1, n=39 (Low Average to Average) Cluster 2, n=27 (Extremely Low to Borderline) Cluster 3, n=29 (Broadly Average with Verbal Strength)
Child age in years, M (SD) 11.10 (2.36) 11.70 (2.23) 10.76 (2.53)
Child gender
 Male, % (n) 56% (22) 48% (13) 45% (13)
 Female, % (n) 44% (17) 52% (14) 55% (16)
Child ethnicity
 White, % (n) 54% (21) 30% (8) 79% (23)
 Hispanic, % (n) 26% (10) 44% (12) 10% (3)
 Other, % (n) 20% (8) 26% (7) 10% (3)
*Lesion level
 Sacral, % (n) 43% (16) 37% (10) 21% (6)
 Lumbar, % (n) 51% (19) 37% (10) 66% (19)
 Thoracic, % (n) 5% (2) 26% (7) 14% (4)
Number of shunt revisions
 0, % (n) 39% (15) 30% (8) 52% (15)
 1, % (n) 21% (8) 27% (7) 24% (7)
 2 or more, % (n) 31% (12) 41% (11) 24% (7)
*History of Seizures
 Yes, % (n) 8% (3) 30% (8) 7% (2)
 No, % (n) 92% (36) 70% (19) 93% (27)
*Hollingshead SES, M (SD) 42.82 (14.19) 30.10 (16.28) 47.34 (13.77)
FSIQ, M (SD) 86.21 (8.78) 67.41 (10.17) 108.24 (11.94)

Note.

*

=p<.05.The Hollingshead (1975) Four Factor Index of socioeconomic status (SES) is based on a composite of maternal education, paternal education, maternal occupational status, and paternal occupational status. Percentages do not add up to 100% due to rounding or missing data.