. Author manuscript; available in PMC: 2022 Mar 1.

Published in final edited form as: J Hosp Infect. 2020 Nov 7;109:96–100. doi: 10.1016/j.jhin.2020.10.028

Table 1.

Total number of CDI positive unit contacts by time and MLST concordant status for all PD cases (n=147)

Exposure	PD cases with prior CDI contact ^{^}	Total previous contacts with CDI	Contacts with same ST type (Presumed transmission)	95% CI	Overall PD cases with same ST contact^¶
Indirect overlap ^*
<4 weeks	121	389	30, 7.7%	(5.2–10.8%)	27
4–8 weeks	115	324	32, 9.8%	(6.9–13.7%)	20
8–12 weeks	103	340	30, 8.8%	(6.0–12.4%)	20
Direct Overlap	117	454	33, 7.2%	(5.1–10.1%)	26
Total		1507	125, 8.3%	(7.0–9.8%)

Interval between discharge of previous unit contact that is CDI positive and date of admission of CO-HCFA case.

^{^}

Represents 147 PD cases - not mutually exclusive by exposure categories

^¶

Represents 69 PD cases with concordant contact- not mutually exclusive by exposure categories