Table 5.

Four common single-base mutations in patients with different genotypes

Mutations	Total	Genotypes				P
	n=40	B (N=52)		C (N=19)
L180M	10	3	5.77	7	36.84	0.003
M204I	23	17	32.69	6	31.58	0.929
M204V	4	1	1.92	3	15.79	0.096
V173L	3	1	1.92	2	10.53	0.173

Notes: N denotes the total number of the mutations for every gene type. n denotes for the total number of the mutations for four single bases.