Table 1 Seroprevalence of anti-HEV IgG in pigs in the provinces considered in the study

Adult pigs

19.2% (5/26)

37.0% (95/257)

28.6% (8/28)

4.8% (2/42)

21.4% (3/14)

14.3% (2/14)

30.2% (115/381)

<0.001 *

Young pigs

18.2% (20/110)

19.2% (73/380)

12.0% (12/100)

1.3% (1/80)

20.0% (12/60)

0.0% (0/30)

15.5% (118/760)

<0.001 *

All Pigs

18.4% (25/136)

26.4% (168/637)

15.6% (20/128)

2.5% (3/122)

20.3% (15/74)

4.5% (2/44)

20.4% (233/1141)

<0.001 *

p

0.548 ^b

<0.001 *

0.042 ^†

0.272 ^†

0,580 ^†

0.096 ^†

<0.001 *