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Table 2 GIF test for excess relatedness among 811 CFS cases

From: Evidence for a heritable predisposition to Chronic Fatigue Syndrome

Phenotype

n

Case

Average

Relatedness

Mean

Control

Average

Relatedness

Empirical

p-value

GIF

Empirical

p-value

Distant

GIF

CFS

811

3.15

2.31

< 0.001

0.010