Research Article

Polymorphisms of NFκB1 and IκBα and Their Synergistic Effect on Nasopharyngeal Carcinoma Susceptibility

Table 3

Interaction analysis between the variations of NFκB1 and IκBα on NPC risk.

Cases ( = 1590) 
IκBα: rs696 G>A
Controls ( = 1979) 
IκBα: rs696 G>A
Crude OR 
(95% CI)a
Adjusted OR 
(95% CI)a
GG + AG
(%)
AA
(%)
GG + AG
(%)
AA
(%)
AA versus GG + AGAA versus GG + AG

NFκB1:
 rs28362491 del/ins
  del/del204 (75.8)65 (24.2)331 (79.0)88 (21.0)1.20 (0.83–1.73)1.24 (0.85–1.80)
  del/ins575 (74.8)194 (25.2)762 (80.2)188 (19.8)1.37 (1.09–1.72)1.38  (1.09–1.74)
  ins/ins392 (71.0)160 (29.0)482 (79.0)124 (21.0)1.54 (1.18–2.01)1.53  (1.17–2.02)
 Combined genotypes2.25 ×
  del/ins + ins/ins967 (73.2)354 (26.8)1244 (79.7)316 (20.3)1.44 (1.21–1.71)1.45  (1.22–1.74)

ORs were adjusted for age, sex and smoking status, and alcohol use, family history of cancer in a logistic regression model.
value of test for the multiplicative interaction between rs696 G>A genotypes and rs28362491 del/ins genotypes on cancer risk in logistic regression models.