. 2007 Dec 19;15(3):397–401. doi: 10.1128/CVI.00416-07

TABLE 2.

Log-transformed PCV2 neutralizing antibody titers

Group	Log-transformed group mean (SE) PCV2 NA titer on trial day^a:
Group	0	14	28
VAC-NEG	1.36 (0.08)^A	1.78 (0.13)^A	2.85 (0.24)^A
VAC-POS	2.51 (0.10)^B	2.44 (0.10)^B	2.41 (0.10)^B
NVAC-CNEG	1.95 (0.06)^C	1.74 (0.07)^A,C	1.58 (0.14)^C
NVAC-CPOS	2.71 (0.10)^B	1.99 (0.18)^A,D	2.45 (0.12)^A,B

Significantly different (P < 0.05) group means within each column are connected by different superscript letters (A, B, C, and D).