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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