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Table 1 Demographic characteristics Demographic characteristics of the family members in the well-performing (Cluster 1), impaired (Cluster 2), and intermediate (Cluster 3) clusters.

From: Family-based clusters of cognitive test performance in familial schizophrenia

 

Cluster 1 (n = 94, 17 families)

Cluster 2 (n = 50, 12 families)

Cluster 3 (n = 115, 25 families)

 

Mean

SD

Mean

SD

Mean

SD

Sex (F/M)

48/46

 

24/26

 

50/65

 

Age

48.8

9.4

52.3

12.6

48.5

11.3

Education years

11.3a,b

3.0

9.3

2.4

9.9

2.3

  1. aContrast versus cluster 1 and 2, p < 0.001, t-test, two-tailed. bContrast versus cluster 1 and 3, p < 0.001, t-test, two-tailed.