Table 1. Tpm Detection and Distribution Within “CDI⁺” Group.

	True CDI, n	Not CDI, n	Uncertain diagnosis, n	Total
Tpm positive	36	3	6	45 (24%)
Tpm negative	31	40	72	143 (76%)
Total	67 (35.6%)	43 (23%)	78 (41.5%)	188

In brackets % of total samples in corresponding categories from total samples in “CDI⁺” group. Underlined numbers are the most important indications. “true CDI” - “CDI⁺” subgroup: it denotes specimens collected from patients clinically evaluated as having real infection. “not CDI” - “CDI⁺” subgroup: it denotes samples collected from patients tested positive by PCR but CDI diagnosis was not confirmed. “Uncertain diagnosis”: specimens tested positive by PCR but the diagnosis is inconclusive.