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Table 2 Relationship between CGG repeat mutation carrier and abortion history

From: The prevalence of CGG repeat expansion mutation in FMR1 gene in the northern Chinese women of reproductive age

CGG repeat mutation carrier

Abortion history

P value

Negative (n = 4534)

Positive (n = 7357)

Intermediate

32(0.7%)

44(0.6%)

X2 = 0.512, P = 0.474

Pre-mutation

6(0.13%)

23(0.31%)

X2 = 3.748, P = 0.053

Full mutation

2(0.04%)

1(0.01%)

P = 0.561*

  1. *Fisher’s exact test