Year | 2013 | 2014 | 2015 | 2016 | 2017 | Overall | P-value |
---|---|---|---|---|---|---|---|
HCV Ab | 0.58 | 0.58 | 0.56 | 0.60 | 0.70 | 0.60 | 0.067 |
HTLV I/II Ab | 0.08 | 0.16 | 0.20 | 0.22 | 0.23 | 0.18 | < 0.001 |
Syphilis Ab | 0.48 | 0.49 | 0.35 | 0.41 | 0.45 | 0.43 | 0.868 |
HBsAg | 0.34 | 0.28 | 0.31 | 0.26 | 0.29 | 0.30 | 0.256 |
Malaria Ag | 0.14 | 0.24 | 0.42 | 0.10 | 0.10 | 0.20 | 0.523 |