Table 1: Concordance of IgM titer results obtained by CTT (1+ strength as end point) with pre-DTT and post DTT treatment results obtained by CAT (1+/2+/3+ strength as end point).

 

Identical to CTT (1+) [%(n)]

Less than CTT (1+) [%(n)]

More than CTT (1+) [%(n)]

IgM

pCAT (1+)

 

 

 

Anti-A

24.2 (477)

48.7 (959)

27.1 (533)

Anti-B

30.2 (591)

39.8 (779)

30.0 (586)

pCAT (2+)

 

 

 

Anti-A

15.4 (308)

77.8 (1555)

6.8 (135)

Anti-B

14.8 (294)

77.5 (1540)

7.7 (154)

pCAT (3+)

 

 

 

Anti-A

3.5 (66)

96.5 (1810)

0 (0)

Anti-B

0.8 (16)

97.4 (1847)

1.7 (33)

CAT (1+)

 

 

 

Anti-A

17.6 (352)

9 (181)

73.4 (1472)

Anti-B

11.8 (237)

6.5 (131)

81.6 (1637)

CAT (2+)

 

 

 

Anti-A

43.4 (870)

36.6 (734)

20 (401)

Anti-B

43.6 (875)

25.1 (503)

31.3 (627)

CAT (3+)

 

 

 

Anti-A

7 (138)

92 (1824)

0 (0)

Anti-B

10.4 (208)

86.9 (1736)

2.7 (54)

CAT: Pre DTT treatment; pCAT: Post DTT treatment