Table 3.

Association levels expressed by OR (CI 95%) and Yates chi-square test between different combinations of immunodominant antigens.

Ag Weight (kDa)	Odds Ratio(95%CI)	χ 2	p-Values
31–33	8.71 (2.49–32.07)	13.92	0.0001911
31–49	7.79 (2.25–28.31)	12.54	0.0003988
31–66	6.00 (1.70–22.44)	8.81	0.0029914
33–49	7.07 (2.10–24.83)	11.70	0.0006253
33–66	7.95 (2.33–28.38)	13.08	0.0002980
49–66	8.71 (2.49–32.07)	13.92	0.0001911
31–33–49	9.00 (2.59–32.81)	14.58	0.0001341
31–33–66	9.00 (2.59–32.81)	14.58	0.0001341
31–49–66	8.71 (2.49–32.07)	13.93	0.0001911
33–49–66	9.00 (2.59–32.81)	14.58	0.0001341
31–33–49–66	9.00 (2.59–32.81)	14.58	0.0001341

Ag: antigen; CI: confidence interval and χ²: Yates corrected chi-square.