Polymorphism in transmembrane region of MICA gene and cholelithiasis

Table 2 Allele frequencies of the polymorphism in transmembrane region of MICA gene in patients with cholelithiasis and controls

Allele	Patienta		Controla		Singleb		Particleb		Sandyb		Age at Dx ≤ 50		Age at Dx ≤ 30		Age at Dx ≤ 40d		Malec		Femalec
	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%
A4	53	15.6	74	15.1	11	19.6	26	16.3	16	12.9	21	13.8	3	15.0	5	8.1	34	20.5	19	10.9
A5	105	30.9	162	33.1	18	32.1	56	35.0	31	25.0	49	32.2	6	30.0	19	30.6	51	30.7	54	31.0
A5.1	85	25.0	135	27.6	11	19.6	35	21.9	39	31.5	39	25.7	5	25.0	18	29.0	38	22.9	47	27.0
A6	24	7.1	32	6.5	4	7.1	10	6.3	10	8.1	13	8.6	2	10.0	6	9.7	10	6.0	14	8.0
A9	73	21.5	87	17.8	12	21.4	33	20.6	28	22.6	30	19.7	4	20.0	14	22.6	33	19.9	40	23.0
Total	340	100	490	100	56	100	160	100	124	100	152	100	20	100	62	100	166	100	174	100

^aP = 0.71,

^bP = 0.541,

^cP = 0.415, ^dP = 0.501 (age ≤ 40 vs. control), Dx = Diagnosis.