YMDD mutations in patients with chronic hepatitis B untreated with antiviral medicines

Table 1 YMDD mutations in different HBV genotypes.

Patterns of genotypes	n	Case number of YMDD mutations	Incidence rate (%)
CD	25	8	32
CB	16	6	37.5
C	15	6	40
D	9	2	22.2
B	9	-	-
DB	12	-	-
Non-classified types	18	6	33.3
Total count	104	28	26.9

Comparison of mutations in different groups (χ² = 0.9334, P>0.05).

Table 2 Comparison of YMDD mutations in different HBV DNA levels.

HBV DNA (copy/mL)	n	YMDD mutations
		Positive	Positive rate (%)
≤105	56	16	28.6
>105	48	12	25

Comparison between the two groups (χ² = 0.1676, P>0.05).