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. 2002 Mar;9(2):308–312. doi: 10.1128/CDLI.9.2.308-312.2002

TABLE 1.

ELISA positivity in polar groupsa

Isotype S+C+ (n = 175)
HS (n = 150)
No. positive % Sensitivity No. positive % Specificity
IgG 109 62 0 100
IgA 91 52 4 97
IgM 19 11 7 95
IgG + IgA 144 82 4 97
IgG + IgA + IgM 145 83 10 93
a

Positivity is defined as greater than the mean plus 2 SD of HS OD.