HBV screening tests distribution by gender and age groups

1999-2004

2005-2009

P-value

Number of screening tests

52,245

73,331

Number of tests on women

30,975 (59.3%)

49,950 (68.1%)

<0.0001

Mean age of women (years)

40.4 ± 14.55

38.3 ± 15.21

0.0001

Mean age of men (years)

46.1 ± 13.34

47.8 ± 14.76

0.0001

Ages 18 - 40

24,084 (46.1%)

39,386 (53.7%)

0.008

Ages 41 - 64

24,824 (47.5%)

28,330 (38.6%)

Ages 65+

3337 (6.4%)

5615 (7.7%)