Table 4.

Odds ratios (OR) and 95% confidence intervals (CI) for pancreatic cancer associated with two profiles of antibody response (clusters 1 and 2).

Cluster*	Case / Controls	MV OR (95% CI )**
1 Low antibody levels to commensal oral bacteria	192/229	1.0 (referent)
2 High antibody levels to commensal oral bacteria	212/187	0.55 (0.36–0.83)

^*For more details on cluster analysis approach, refer to Supplemental Methods.

^**Odds ratios (OR) and 95% confidence intervals (CI) were obtained using conditional logistic regression (cases were matched to controls on center, sex, follow-up time, age at blood collection, date and time of blood collection, fasting status and use of exogenous hormones among women) and adjusting for BMI and smoking status.