Table 1.

Comparison of the KIR gene frequency observed in the Italian multicentric study with Caucasian and non-Caucasian populations.

KIR gene	Italian Study (n.217) (%)	Australian Caucasian Witt et al. (n.145) (%)	Irish Crum et al. (n.90) (%)	Germany Uhrber et al. (n.120) (%)	German Becher et al. (n.90) (%)	Greek Niokou et al. (n.233) (%)	North Indian Rajalingam et al. (n.72) (%)	Vietnamese Toneva et al. (n.59) (%)	Australian Aborigine Toneva et al. (n.67) (%)	Thailandia Norman et al. (n.119) (%)	Palestinian Norman et al. (n.105) (%)	Afro Caribbean Cook et al. (n.54) (%)	Asian Cook et al. (n.35) (%)	Chinese Han Jiang et al. (n.104) (%)	Japanese Yawata et al. (n.41) (%)
2DL1	95	96	§84 P0.009	93	87	89	91	98	§72 P0.0001	97	§83 P0.004	90	86	99	100
2DL2	53	§31 P0.0001	50	56	50	50	79 P0.0001	37	78 P0.003	42	62	54	54	17 P0.0001	§17 P0.0001
2DL3	88	95	90	87	§65 P0.0001	88	91	98	§65 P0.0001	97	85	91	86	99 P0.0001	100
2DL5A	33	nt	nt	#44	#79	nt	nt	nt	nt	nt	nt	#33	#26	31	#39
2DL5B	28	nt	Nt	nt	nt	nt	nt	nt	nt	nt	nt	nt	nt	6 P0.0001	nt
2DS1	36	51	56	37	39	43	54	38	82 P0.0001	42	44	17	49	34	34
2DS2	53	51	51	62	49	54	62	41	84 P0.0001	44	64	52	57	17 P0.0001	§17 P0.0001
2DS3	33	28	27	28	22	37	43	31	81 P0.0001	25	37	24	29	12 P0.0001	§17 P0.0001
2DS4 *001-*002	33	#nt	#nt	#nt	#nt	#nt	#nt	#nt	#nt	#nt	#nt	#nt	#nt	80 P0.0001	#nt
2DS4* 003	89	92	96	98	96	88	80	87	81	87	88	78	83	42 P0.0001	96 P0.0001
2DS5	28	nt	35	26	27	21	47 P0.002	nt	nt	23	27	30	51 P0.008	23	28
3DL1	96	96	92	96	§87 P0.0003	90	91	89	§57 P0.0001	93	88	98	91	94	97
3DS1	35	nt	Nt	nt	36	46	39	41	78 P0.0001	44	39	17	40	32	33

§ With the exception of the Chinese Han population, the primers used were not the same as in the Italian study and hence cannot afford a real comparison. However, any higher percentages of detection are significant. # It should be noted that values given for 2DL5 and 2DS4*003 may contain 2DL5B and 2DS4*001/002 positivities where the latter alleles are reported as not-tested (nt).