TABLE 1.

MIT laboratory: within-subject association between H. pylori and H. bilis immune response

Antigen and H. bilis detection resultNo. of samples (% positive) with result for H. pylori detection with OMPa% AgreementKappaP
PositiveNegativeTotal
OMP (no preabsorption)
    Positive49554 (58.7)66.30.2430.003
    Negative261238
    Total75 (81.5)1792
Sonicate
    Positive38341 (44.5)56.50.1860.007
    Negative371451
    Total751792
Preabsorbed sonicateb
    Positive14014 (15.2)33.70.07860.03
    Negative611778
    Total751792
  • a Percent positive values are indicated in parentheses.

  • b That is, the H. bilis sonicate after preabsorption with the H. pylori sonicate.