Table 2.
Use of antibiotics, telephone encounters, and UTI characteristics before and after initiation of gentamicin instillations
| Before gentamicin | After gentamicin | p | |
|---|---|---|---|
| Symptomatic UTI median (range) | 4 (1–5) Interquartile 2–5 |
1 (0–2) Interquartile 1–1 |
0.004 |
|
| |||
| Courses of oral antibiotics | 3.5 (1–5) Interquartile 3–4 |
1 (0–5) Interquartile 1–2 |
0.01 |
|
| |||
| Courses of IM or IV antibiotics | 3 (27.3%) | 1 (10.0%) | 0.16 |
|
| |||
| Days of antibiotic therapy | 15 (1–34) Interquartile 7–24 |
5 (0–30) Interquartile 1–10 |
0.06 |
|
| |||
| ED/Hospital visits for UTI | 3 (27.3%) | 1 (10.0%) | 0.32 |
|
| |||
| Telephone encounters for UTI | 3 (0–6) Interquartile 1–5 |
0 (0–3) Interquartile 0–1 |
0.03 |
|
| |||
| Multidrug-resistant organisms | 21/36 (58.3%) | 8/17 (47.1%) | 0.04 OR 2.83 95% CI (1.03–7.79) |
|
| |||
| Gentamicin resistant organisms | 2/33 (6.1%) | 0/11 (0.0%) | NA |
|
| |||
| Organisms on all cultures* (number): | |||
| Pseudomonas aeruginosa | 3 | 1 | NA |
| Klebsiella pneumonia | 9 | 5 | |
| E. coli | 10 | 1 | |
| Enterococcus | 3 | 3 | |
| Enterobacter | 3 | 0 | |
| Other organisms | 2 | 1 | |
| Multiple organisms | 2 | 2 | |
*
Not all UTIs had culture data available.
IM: intramuscular; IV: intravenous; UTI: urinary tract infection.