Table 2.

Sensitivity, specificity and predictive values of the Campylobacter-like organism and Quick tests in Group 1

Test (at 24 h)	True positive	True negative	Total
CLO test
Positive	26	0	26
Negative	0	79	79
Quick test
Positive	25	0	25
Negative	1	79	80

Campylobacter-like organism (CLO) test: sensitivity 100% [95% confidence interval (CI): 87.13-100], specificity 100% (95% CI: 95.36-100), positive predictive value (PPV) 100% (95% CI: 87.13-100), negative predictive value (NPV) 100% (95% CI: 95.36-100); Quick test: sensitivity 96.1% (95% CI: 81.11-99.32), specificity 100% (95% CI: 95.36-100), PPV 100% (95% CI: 86.68-100), NPV 98.7% (95% CI: 93.25-99.78).