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Table 4 Numbers and methods of treponemal tests additionally performed with nontreponemal tests for follow-up in 2018

From: Outcomes of infants born to pregnant women with syphilis: a nationwide study in Korea

  At birth
N = 60
1st follow-up
N = 11
2nd follow-up
N = 5
3rd follow-up
N = 1
Number of tests 1 38 (63 %) 5 (45 %) 3 (60 %) 0 (0 %)
2 15 (25 %) 4 (36 %) 1 (20 %) 1 (100 %)
3 7 (12 %) 1 (9 %) 1 (20 %) 0 (0 %)
4 0 (0 %) 1 (9 %) 0 (0 %) 0 (0 %)
Test method TPPA 20 (33 %) 8 (73 %) 3 (60 %) 0 (0 %)
EIA 20 (33 %) 5 (45 %) 4 (80 %) 1 (100 %)
FTA-ABS 48 (80 %) 6 (55 %) 1 (20 %) 1 (100 %)
PCR 1 (2 %) 0 (0 %) 3 (60 %) 0 (0 %)
  1. TPPA treponema pallidum particle agglutination, EIA enzyme immunoassay, FTA-ABS fluorescent treponemal antibody absorbed test, PCR polymerase chain reaction