Table 2.

Urinary Tract Infection Rates by Intervention and Lactobacillus crispatus Colonization Pattern

Intervention	No. (%) of participants developing recurrent UTI	Relative risk(95% CI)
Lactin-V (n = 48)	7 (15)	.5 (.2–1.2)
Placebo (n = 48)	13 (27)	…
Intervention, L. crispatus colonization pattern
Lactin-V, High level (n = 41)	2 (5)	.07 (.02–.3)
Lactin-V, Low level (n = 7)	5 (71)	…
Placebo, High level (n = 32)	9 (28)	1.1 (.4–3.1)
Placebo, Low level (n = 16)	4 (25)	…

NOTE. CI, confidence interval; Lactin-V, L. crispatus intravaginal suppository probiotic (Osel); UTI, urinary tract infection