Analysis of Urogenital Toileting Techniques and Their Association with Bacteriuria Rates Among Nursing Home Residents

Urogenital toileting practices for residents in nursing homes (NHs) and their implications for the occurrence of bacteriuria remain largely unknown. Our purpose was to assess urogenital toileting practices in NHs in our region and their association with bacteriuria and urinary culture contamination rates. NHs reported on the direction of urogenital cleaning with respect to the urinary meatus and related practices during resident care over 7 years (2017 to 2023). Linear mixed models were used to relate two urogenital cleaning techniques, with bacteriuria rates (positive urinary cultures per resident over a year) and urinary culture contamination proportions. Of the 111 participating NHs, 33% used a technique involving outward cleaning with respect to the urinary meatus. Of these, 50 institutions had 7-year urinary microbiological data available (10,602 cultures, 13,059 isolates). Escherichia coli (45%) was the most frequently isolated microorganism while 12.4% of all cultures were contaminated (>3 microorganisms). We did not observe any significant association between the cleaning technique and the bacteriuria rates. The technique involving outward cleaning away from the urinary meatus was associated with lower odds of urinary culture contamination (odds ratio = 0.15, 95% CI: 0.05-0.48, p < 0.01). Urogenital cleaning techniques varied across participating institutions. We observed an association with urinary culture contamination, but not with bacteriuria rates. These findings warrant further investigation.