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Table 1 G72 risk status

From: Effect of the G72 (DAOA) putative risk haplotype on cognitive functions in healthy subjects

G72risk status low intermediate high F p
a: Subjects' characteristics      
number of subjects 88 231 104   
Sex ratio (men/women) 43/45 115/116 56/48 χ2 = 0.606 .739
Age (years) 25.0 (6.7) 24.9 (6.3) 23.8 (3.7) 1.387 .251
Education (years) 15.5 (2.6) 15.5 (2.8) 15.5 (2.2) .005 .995
b: Cognitive variables      
Spatial span 19.09 (2.88) 18.82 (3.12) 19.62 (2.60) 2.585 .077
Letter-number-span test 16.36 (2.51) 16.28 (2.55) 17.32 (2.26) 6.636 .001 *
Trail Making Test 58.29 (15.01) 62.85 (19.67) 57.31 (15.42) 4.357 .013
Semantic verbal fluency 30.75 (8.88) 30.91 (9.21) 32.81 (9.63) 1.734 .178
Lexical verbal fluency 17.38 (4.25) 16.54 (4.47) 16.89 (5.08) 1.096 .335
d2-test 201.3 (35.7) 188.0 (33.5) 198.8 (33.8) 6.545 .002 *
  1. Subjects are divided into three groups (low, intermediate and high risk) according to their G72 status (based on two SNPs, M23 and M24). (a) Subjects' characteristics: sex, age and education. There were no significant group differences in sex ratio, age or education (p > .1). (b) Cognitive results of a neuropsychological test battery testing working memory, executive functions, verbal fluency and attention. Due to Bonferroni corrections for multiple testing, a significance threshold of p = 0.008 was set as significance criterion. Standard deviations are given in parentheses. Significant results are marked with '*'.