TABLE 2.

Results of duplicate testing of fecal samples from cross-sectional farm survey for cattle shedding E. coli O157a

Test 1 resultNo. of samples with test 2 result of:Total
+
+19827
4511515
Total23519542
  • a Paired exact test, P = 0.39; kappa statistic, 0.75; Pneg, 0.99; Ppos, 0.76.