TABLE 1.

Performance statistics for tests in which results were based on isolate-by-isolate classification into the various known-source categoriesa

TestbTargetSample typeHuman sourceNonhuman sourceReference(s)
Proportion of true-positive classificationsnProportion of true-positive classificationsn
ARAE. coliBlind isolates0.24170.835397
0.27440.8613372
ARAEnterococciBlind isolates0.66440.555572
Carbon source utilizationE. coliBlind isolates0.12170.9812697
BOX-PCRE. coliBlind isolates0.31160.9513397
BOX-PCR, HFERPE. coliIsolates from reference feces0.542100.941,32153
REP-PCRE. coliBlind isolates0.60100.948397
PFGEE. coli, NotIBlind isolates0.6760.913497
RibotypingE. coli, HindIIIIsolates from reference feces0.85840.7931789
RibotypingE. coli, HindIIIBlind isolates0.06170.815372
0.50440.9213097
F+ RNA coliphageTypes I through IVIsolates from blind samples0.54280.00175
F+ RNA coliphageTypes I through IVIsolates from reference feces0.76-1.0017-250.26-0.8721-1,08818, 28, 43, 75, 87
F+ RNA coliphageTypes I through IVIsolates from wastewater0.834030.8829728
0.876,4650.912,49587
  • a For simplicity, only data from two-way splits (human or nonhuman) were compiled.

  • b ARA, antibiotic resistance analysis; REP-PCR, repetitive DNA element PCR with repetitive extragenic palindromic primers; BOX-PCR, repetitive DNA element PCR with BOX primers; PFGE, pulsed-field gel electrophoresis; HFERP, horizontal fluorophore-enhanced repetitive extragenic palindromic.