Table 3. Odds of having IgM serum antibodies against GMI, GM2, GD1a, GD1b, and GT1b gangliosides in Guillain-Barré Syndrome cases and patient-controls for all cases and controls, for patients reporting diarrhea, and for patients excreting Campylobacter, the Arab Republic of Egypt, April 2001 through September 2003.

Antiganglioside Antibodies	All cases and controls			History of diarrhea			Campylobacter positive
	Cases (n = 133)	Controls (n = 374)	Adjusted Odds Ratioa	Cases (n = 39)	Controls (n = 83)	Adjusted Odds Ratiob	Cases (n = 14)	Controls (n = 26)	Adjusted Odds Ratioc
GM1	45.9	25.9	2.79 (1.77 to 4.40)d , e	35.9	26.5	1.62 (0.70 to 3.76)	50.0	15.4	5.17 (1.03 to 26.07)f
GM2	11.3	13.7	0.77 (0.41 to 1.47)	2.6	16.9	0.14 (0.02 to 1.12)	7.1	11.5	0.50 (0.04 to 5.92)
GD1a	35.3	11.5	4.39 (2.59 to 7.45)e	28.2	9.6	5.03 (1.67 to 15.18)g	42.9	7.7	7.89 (1.16 to 53.65)h
GD1b	30.8	13.1	2.95 (1.77 to 4.90)e	18.0	15.6	1.37 (0.48 to 3.93)	57.1	7.7	23.84 (2.46 to 231.25)i
GT1b	14.3	6.7	2.56 (1.29 to 5.07)j	7.7	6.0	1.35 (0.29 to 6.36)	28.6	3.9	6.22 (0.60 to 64.97)

^aConditional logistic regression controlling for age, gender, ownership of farm animals, and ownership of luxury items.

^bUnconditional logistic regression controlling for age, gender, livestock ownership, and possession of luxury items.

^cUnconditional logistic regression controlling for possession of luxury items. Other variable were excluded because of sparse data.

^dOdds Ratio (95% CI).

^e<.0001.

^fP = 0.047.

^gP = .004.

^hP = 0.04.

ⁱP = 0.006.

^jP = .007.