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Table 4 Prevalence of FVIII inhibitors Among Severely and Moderately Hemophilia Patients with Different Interon 22 inversion Mutation Status

From: Factor VIII inhibitor development in Egyptian hemophilia patients: does intron 22 inversion mutation play a role?

Inhibitor

F VIII inhibitor positive

N (%)

F VIII inhibitor negative

N (%)

Total

Degree

Mutation

Severe HA

  

72

Inv22 positive N (%)

9 (38)

15 (62)

24

Inv22 negative N (%)

7 (15)

41 (85)

48

Odd Ratio

3.5

95% CI

1.11–11

P value

0.032*

Moderate HA

  

48

Inv22 positive N (%)

1 (33)

2 (67)

3

Inv22 negative N (%)

4 (9)

41 (91)

45

Odd Ratio

5.1

  

95% CI

0.37–9.7

  

P value

0.2 #

  
  1. Inv22 intron22 inversion, F VIII factor VIII, HA hemophilia A, N number, % percent, * significant, # not significant