The Korean Journal of Blood Transfusion : eISSN 2383-6881 / pISSN 1226-9336

Table. 3.

Table. 3.

Estimation of efficiency of donor questionnaire to prevent the donation of people who visited dengue outbreak areas

2016 2017 2018
Total population (Pt) 51,696,216 51,778,544 51,826,059
Number of travelers
Total 22,383,190 26,496,447 28,695,983
Dengue outbreak areas (To) 5,628,702 6,993,733 8,133,710
Number of applicants of blood donation (Da) 3,120,983 3,171,501 3,154,147
Number of disqualified donors
Total 475,802 456,682 472,536
Reason of overseas trip (Do) 28,766 39,525 36,368
Estimated number of donation-applicants who have
returned after overseas trip
Total (Ar)* 1,351,309 1,622,941 1,746,445
Less than a month (Am) 103,662 124,500 133,974
Estimated efficiency of donor questionnaire (%) 27.7 31.7 27.1

*Calculated by Da×(To/Pt). Calculated by Ar×(28/365). Calculated by 100×Do/Am.

Korean J Blood Transfus 2020;31:230-8 https://doi.org/10.17945/kjbt.2020.31.3.230
© 2020 Korean J Blood Transfus