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. Author manuscript; available in PMC: 2016 Jul 18.
Published in final edited form as: JAMA Intern Med. 2015 Nov;175(11):1792–1801. doi: 10.1001/jamainternmed.2015.4114

Figure 1. Flow of Patients Through Testing and Follow-up.

Figure 1

Tox+/PCR+ indicates Clostridium difficile toxin immunoassay positive and polymerase chain reaction positive; Tox−/PCR+, C difficile toxin immunoassay negative and polymerase chain reaction positive; and Tox−/PCR−, C difficile toxin immunoassay negative and polymerase chain reaction negative.

a Clostridium difficile test group based on US Food and Drug Administration–approved toxin immunoassay and polymerase chain reaction results.

b Includes one patient with false-positive immunoassay.

c Includes 20 patients with false-positive immunoassay.