Table 6.

Multivariate logistic regression analysis of risk factors for subjects with inflammatory bowel disease (IBD), Crohn’s disease (CD) or Ulcerative Colitis (UC) versus those of healthy controls

	Odds ratio (95% CI)	P
CD (n = 173)
C allele carrier in LCT	1.44 (0.93-2.24)	0.1
MAP (PCR positive vs PCR negative)	0.33 (0.21-0.53)	<0.0001
NOD-2 mutant	2.05 (1.18-3.58)	0.011
UC (n = 105)
C allele carrier in LCT	2.16 (1.25-3.71)	0.005
MAP (PCR positive vs PCR negative)	0.29 (0.16-0.50)	<0.0001
NOD-2 mutant	0.67 (0.30-1.51)	0.338
IBD (n = 278)
C allele carrier in LCT	1.65 (1.11-2.45)	0.013
MAP (PCR positive vs PCR negative)	0.31 (0.21-0.47)	<0.0001
NOD-2 mutant	1.74 (1.00-3.01)	0.046

In this analysis C allele carrier and MAP presence were treated as categorical values. Significance was considered when P < 0.05.