Table 2.

Killer cell immunoglobulin-like receptors (KIR) phenotype frequency (pf) and genotype frequencies (gf) in patients and control subjects*

	Group
KIR	healthy controls (N = 412)			chronic hepatitis B (N = 150)				spontaneously recovered controls (N = 251)
	+	pf (%)	gf (%)	+	pf (%)	gf	PC	+	pf (%)	gf (%)	PS	P
Inhibitory
2DL1	407	98.79	89.00	150	100	100	1	248	98.80	89.05	1	1
2DL2	79	19.17	10.10	21	11.00	7.263	0.172	39	15.54	0.081	0.251	0.773
2DL3	407	98.79	89.00	150	100	100	1	237	94.42	76.38	0.045	0.062
2DL4	412	100	100	150	100	100	1	251	100	100	1	1
2DL5	216	52.43	31.03	102	68.00	43.43	0.001	200	79.68	54.92	0	0.001
3DL1	407	98.79	89.00	150	100	100	1	247	98.41	87.39	0.736	0.654
3DL2	412	100	100	150	100	100	1	251	100	100	1	1
3DL3	412	100	100	150	100	100	1	251	100	100	1	1
Activating
2DS1	205	49.76	29.16	84	56.00	33.67	0.215	180	71.71	46.81	0	0.001
2DS2	114	27.67	14.95	64	42.67	24.28	0.001	63	25.10	13.46	0.526	0.001
2DS3	79	19.17	10.09	44	29.33	15.93	0.011	47	18.73	9.85	0.919	0.014
2DS4	399	96.84	82.22	148	98.67	88.47	0.375	251	100	100	0.022	0.059
2DS5	133	32.20	17.66	64	42.67	24.28	0.028	114	45.42	26.12	0.001	0.605
3DS1	176	42.72	24.32	70	46.67	26.97	0.442	164	65.34	41.13	0	0.001
Pseudogene
KIRZ	412	100	100	150	100	100	NS	251	100	1	1	1

*Abbreviations: + – positive case numbers; P_C – P value for the comparison between chronic hepatitis group and healthy control group; P_S – P value for the comparison between spontaneously recovered group and healthy control group; P – P-value for the comparison between spontaneously recovered group and chronic hepatitis group.