Table 5 Carrier frequency of various susceptibility-related factor combinations among patients with lung cancer and healthy controls.

From: KIR-HLA gene diversities and susceptibility to lung cancer

KIR combination

Healthy controls

Lung cancer

Lung cancer versus HC

n = 448

n = 232

p value

Pc

OR (95% CI)

%F (N + /n)

F% (N + /n)

KIR genotypes

iKIR > aKIR

52.2 (234/448)

64.7 (150/232)

0.002

0.008*

1.67 (1.2–2.32)

aKIR > iKIR

19.4 (87/448)

13.4 (31/232)

   

iKIR > 4

67.0 (300/448)

75.0 (174/232)

0.035

0.14*

1.48 (1.036–2.11)

aKIR > 4

50.0 (224/448)

40.1 (93/232)

0.015

0.06*

0.66 (0.48–0.92)

KIR combined genotypes

CxTx/2DS2

11.1 (50/448)

20.2 (47/232)

0.0074

0.066**

1.84 (1.18–2.88)

CxTx/2DL2

12.3 (55/448)

23.7 (55/232)

0.0012

0.011**

2.04 (1.34–3.13)

iKIR > aKIR carriers subgroup

2DS2 presence

45.2 (105/232)

59.3 (89/150)

0.0087

0.078**

1.76 (1.16–2.67)

2DL2 presence

49.1 (114/232)

66.6 (100/150)

0.0008

0.0072**

2.05 (1.35–3.17)

  1. N+ number of individuals positive for the gene, n number of individuals tested for the gene, HC healthy control, OR odds ratio, CI confidence interval. p < 0.05: statistically significant; based on two-tailed Fisher’s exact test; Pc: corrected p values, Pc*: correction factor = 4, Pc**: correction factor = 9.