1105. Statewide, Retrospective, Cohort Study of Medicare Part B Quinolone Prescribing for Cystitis in 2016–2017

Background

Quinolones (FQ) are no longer recommended as first-line therapy for cystitis. In 2016, the FDA released a safety communication advising FQ restriction in the treatment of uncomplicated urinary tract infection unless no other options are available. However, little is known about the frequency of FQ (FFQ) prescribing in older adults (OA) receiving antibiotics for cystitis in New York State (NYS). This study compared the FFQ prescribing in OA receiving antibiotics with a diagnosis of cystitis in NYS between 2016 and 2017.

Methods

Retrospective, cohort study of (NYS) Part B Medicare fee-for-service beneficiaries in 2016 and 2017 with diagnosis codes for cystitis. All antibiotics prescribed ≤ 3 days after visit were analyzed. FQ were defined as ciprofloxacin, gemifloxacin, levofloxacin, moxifloxacin, norfloxacin, ofloxacin. County-wide data were aggregated into regional data per NYS Department of Health Population Health Improvement Program categories, but New York City counties were not grouped. FFQ was analyzed at the state and regional level and was defined as the total # of FQ prescriptions / total # of antibiotic prescriptions with the diagnostic code for cystitis. χ ² test and Risk Ratios (RR = 2017 FFQ/2016 FFQ) were used to compare 2016 and 2017 FFQs for the state and for each region using SAS v 9.3 (α = 0.05).

Results

50,658 antibiotic prescriptions were written for Medicare beneficiaries diagnosed with cystitis in NYS. The statewide FFQ decreased by 14% from 35.9% in 2016 to 31.0% in 2017 (RR: 0.86 [95% CI: 0.84 – 0.88], P < 0.001). FFQ decreased significantly in 11 of 15 regions (P < 0.05, Figures 1 and 2). The median (IQR) FFQ RR for the regions was 0.83 (0.81, 0.87) (Figure 3). The regions (RR [95% CI]) with the largest decrease were Bronx (0.78 [0.67,0.91]), Finger Lakes (0.80 [0.71,0.89]) and Central New York (0.81 [0.72,0.91]). Limited or no changes were observed in Brooklyn (1.01 [0.94, 1.09]), Queens (0.97 [0.88, 1.06]) and Staten Island (0.95 [0.79, 1.13]).

Conclusion

On a statewide level, there were significant decreases in FFQ for cystitis in older adults in 2017 compared with 2016. Nevertheless, up to a third of cystitis prescription were for FQ. Future studies should evaluate the appropriateness of FQ for cystitis in OA.

Disclosures

All authors: No reported disclosures.

1237. New York State Outpatient Regional Antibiogram for Urinary Pathogens: Have We Reached a Post Antibiotic Era for the Treatment of UTIs?

Background

Outpatient prescribing for acute uncomplicated cystitis is a significant driver of antimicrobial use. Empiric therapy should be based on local susceptibility data. However, there is limited guidance on regional susceptibility trends in outpatient settings. This study describes the epidemiology and prevalence of antimicrobial resistance in uropathogens in New York State outpatient settings to help inform empiric treatment decisions.

Methods

Retrospective analysis of positive urine cultures sent to Quest Diagnostics in 2016 from outpatient settings. Cultures that grew ≥10⁵ CFU/mL were included from 17 NYS counties. Bacterial identification and antimicrobial sensitivities were determined on the Vitek-2 using CLSI M-100 S-25 breakpoints. Data were summarized as proportions and stratified by age (<17, 18–64, ≥65) and sex.

Results

Over 78,000 isolates were included (Table 1). The most prevalent isolates were Escherichia coli (65.2%), Enterococcus spp. (11.9%), and Klebsiella pneumoniae (9.9%). E. coli was highly susceptible to nitrofurantoin (NTF, 97.2%) and cefazolin (CFZ, 89.9%) and less susceptible to trimethoprim–sulfamethoxazole (TMP-SMX, 72.9%) and ciprofloxacin (CIP, 78.0%). Enterococcus spp. was highly susceptible to NTF (99.0%) and ampicillin (99.8%). K. pneumoniae was highly susceptible to TMP-SMX (90.0%) and CIP (95.2%) and markedly less susceptible to NTF (42.0%). E. coli was more prevalent in females (69.7% vs. 39.6%, P < 0.001). Enterococcus was more prevalent in males (39.6% vs. 10.1%, P < 0.001). The prevalence of K. pneumoniae was similar in men and women (9.6% vs. 10.1%, P = 0.08). Resistance was more prevalent in males (NTF: 6.3% vs. 4.2%; TMP-SMX: 26.3% vs. 22.7%; CIP: 35% vs. 17.3%) and for adults ≥65 (NTF: 6.2% vs. 3.6%; TMP-SMX: 25.1% vs. 22.1%; CIP: 30.0% vs. 14.0%) P < 0.001 for all comparisons.

Conclusion

NTF appears to be the best empiric choice for outpatient treatment of acute uncomplicated cystitis in New York State. TMP-SMX and ciprofloxacin should be avoided empirically. These data also highlight the necessity to obtain uropathogen sensitivity data to confirm empiric therapy or make appropriate adjustments in the outpatient setting.

Table 1. Summary of Antimicrobial Susceptibilities

Disclosures

T. P. Lodise Jr., Motif BioSciences: Board Member, Consulting fee.

1303. Provider Knowledge and Attitudes Toward Antibiotic Prescribing and Antibiotic Stewardship in Outpatient Rural Clinics

Background

Rural outpatient clinics serve the healthcare needs of many individuals, especially for acute sick visits and infectious processes. A better understanding of providers’ knowledge and attitudes toward antibiotic stewardship in the outpatient rural setting is needed to facilitate more effective education regarding appropriate antibiotic prescribing.

Methods

A cross-sectional, multi-center, 28-item survey assessing providers’ knowledge and attitudes toward antibiotic prescribing and antibiotic stewardship in the rural setting was distributed to providers from Guthrie and United Health Services primary care clinics in rural New York and Pennsylvania.

Results

Sixty-five providers participated (31% response rate) with 43%, 29%, and 28% of responses from physicians, resident physicians, and advanced practice providers, respectively. More than half of respondents practiced for ≤5 years since terminal training. The most significant barrier to improving antibiotic prescribing was patient demands (55%) followed by uncertain diagnosis of bacterial infection (22%) and short appointment visit times (11%). Providers that spent ≤20 minutes per visit were more likely to feel pressured to prescribe antibiotics for upper respiratory tract infections (URI) to ensure patient satisfaction than those who spent >20 minutes (41% vs. 7%, P = 0.024). Additionally, providers who saw >50 patients per week were more likely to feel pressured to prescribe antibiotics for URIs than those who saw ≤50 patients (50% vs. 18%, P = 0.009). Only 42% of providers selected the correct answer that 90–98% of URIs are viral. The majority of providers strongly agreed that antibiotics are overused (71%) and inappropriate antibiotic use can lead to resistance (82%). Thirty-eight percent of providers never heard the term antibiotic stewardship or heard the term but were unsure about the definition. However, more than 75% of providers strongly agreed or agreed that they were interested in receiving more education regarding antibiotic stewardship.

Conclusion

Variability exists among providers’ knowledge and attitudes toward antibiotic stewardship and antibiotic prescribing in rural outpatient settings. Increased educational efforts are warranted to increase consistency of these concepts and practices.

Disclosures

All authors: No reported disclosures.

Determining the formulary status of quinolone antibiotics: one institution's approach

Streamlining antibiotic therapy--ie, simplifying regimens, route of administration, or both--is necessary in the modern treatment of hospitalized patients with infectious diseases. Due to their pharmacokinetic profiles and comparative efficacy and safety, the quinolone class of antibiotics is an ideal class for which to direct streamlining efforts. Including only one agent of this class on the formulary, however, is inadequate. Having several quinolones available, and thus expanding the local hospital market for them, enables more physicians to be contacted and educated by manufacturers' sales representatives as part of the hospital's antibiotic management program. By assisting in the education efforts, pharmaceutical representative help to conserve hospital resources, both in terms of cost and personnel. In addition, having more than one supplier of quinolones encourages competition, which favors price reductions.