scholarly journals Trends in outpatient antibiotic prescribing practice among US older adults, 2011-2015: an observational study

2018 ◽  
Author(s):  
Scott W. Olesen ◽  
Michael L. Barnett ◽  
Derek R. MacFadden ◽  
Marc Lipsitch ◽  
Yonatan H. Grad

Structured abstractObjectiveTo identify temporal trends in outpatient antibiotic use and antibiotic prescribing practice among older adults.DesignObservational study using United States Medicare administrative claims during 2011-2015. Trends in antibiotic use were estimated using multivariable regression adjusting for beneficiaries’ demographic and clinical covariates.SettingMedicare.Participants4.6 million Medicare beneficiaries from a nationwide, 20% sample of fee-forservice Medicare beneficiaries ≥65 years old.Main outcome measurementsOverall rates of antibiotic prescription claims, rates of appropriate and inappropriate prescribing, rates for each of the most frequently prescribed antibiotics, and rates of antibiotic claims associated with specific diagnoses.ResultsAntibiotic claims fell from 1362.2 to 1361.6 claims per 1,000 beneficiaries per year during 2011-2015, an overall 0.2% decrease (95% CI 0.07-0.32). Inappropriate antibiotic claims fell from 552 to 533 claims per 1,000 beneficiaries, a 4.1% decrease (CI 3.9-4.3). Individual antibiotics had heterogeneous changes in use. For example, azithromycin claims per beneficiary decreased by 18.4% (CI 18.2-18.7) while levofloxacin claims increased by 28.1% (CI 27.5-28.6). Azithromycin use associated with each of the potentially appropriate and inappropriate respiratory diagnoses we considered decreased, while levofloxacin use associated with each of those diagnoses increased.ConclusionAmong US Medicare beneficiaries, overall antibiotic use and inappropriate use declined modestly, but individual drugs experienced divergent changes in use. Trends in drug use across indications were stronger than trends in use for individual indications, suggesting that guidelines and concerns about antibiotic resistance were not major drivers of change in antibiotic use.

BMJ ◽  
2018 ◽  
pp. k3155 ◽  
Author(s):  
Scott W Olesen ◽  
Michael L Barnett ◽  
Derek R MacFadden ◽  
Marc Lipsitch ◽  
Yonatan H Grad

AbstractObjectiveTo identify temporal trends in outpatient antibiotic use and antibiotic prescribing practice among older adults in a high income country.DesignObservational study using United States Medicare administrative claims in 2011-15.SettingMedicare, a US national healthcare program for which 98% of older adults are eligible.Participants4.5 million fee-for-service Medicare beneficiaries aged 65 years old and older.Main outcome measurementsOverall rates of antibiotic prescription claims, rates of potentially appropriate and inappropriate prescribing, rates for each of the most frequently prescribed antibiotics, and rates of antibiotic claims associated with specific diagnoses. Trends in antibiotic use were estimated by multivariable regression adjusting for beneficiaries’ demographic and clinical covariates.ResultsThe number of antibiotic claims fell from 1364.7 to 1309.3 claims per 1000 beneficiaries per year in 2011-14 (adjusted reduction of 2.1% (95% confidence interval 2.0% to 2.2%)), but then rose to 1364.3 claims per 1000 beneficiaries per year in 2015 (adjusted reduction of 0.20% over 2011-15 (0.09% to 0.30%)). Potentially inappropriate antibiotic claims fell from 552.7 to 522.1 per 1000 beneficiaries over 2011-14, an adjusted reduction of 3.9% (3.7% to 4.1%). Individual antibiotics had heterogeneous changes in use. For example, azithromycin claims per beneficiary decreased by 18.5% (18.2% to 18.8%) while levofloxacin claims increased by 27.7% (27.2% to 28.3%). Azithromycin use associated with each of the potentially appropriate and inappropriate respiratory diagnoses decreased, while levofloxacin use associated with each of those diagnoses increased.ConclusionAmong US Medicare beneficiaries, overall antibiotic use and potentially inappropriate use in 2011-15 remained steady or fell modestly, but individual drugs had divergent changes in use. Trends in drug use across indications were stronger than trends in use for individual indications, suggesting that guidelines and concerns about antibiotic resistance were not major drivers of change in antibiotic use.


Author(s):  
Bethany A. Wattles ◽  
Kahir S. Jawad ◽  
Yana Feygin ◽  
Maiying Kong ◽  
Navjyot K. Vidwan ◽  
...  

Abstract Objective: To describe risk factors associated with inappropriate antibiotic prescribing to children. Design: Cross-sectional, retrospective analysis of antibiotic prescribing to children, using Kentucky Medicaid medical and pharmacy claims data, 2017. Participants: Population-based sample of pediatric Medicaid patients and providers. Methods: Antibiotic prescriptions were identified from pharmacy claims and used to describe patient and provider characteristics. Associated medical claims were identified and linked to assign diagnoses. An existing classification scheme was applied to determine appropriateness of antibiotic prescriptions. Results: Overall, 10,787 providers wrote 779,813 antibiotic prescriptions for 328,515 children insured by Kentucky Medicaid in 2017. Moreover, 154,546 (19.8%) of these antibiotic prescriptions were appropriate, 358,026 (45.9%) were potentially appropriate, 163,654 (21.0%) were inappropriate, and 103,587 (13.3%) were not associated with a diagnosis. Half of all providers wrote 12 prescriptions or less to Medicaid children. The following child characteristics were associated with inappropriate antibiotic prescribing: residence in a rural area (odds ratio [OR], 1.09; 95% confidence interval [CI], 1.07–1.1), having a visit with an inappropriate prescriber (OR, 4.15; 95% CI, 4.1–4.2), age 0–2 years (OR, 1.39; 95% CI, 1.37–1.41), and presence of a chronic condition (OR, 1.31; 95% CI, 1.28–1.33). Conclusions: Inappropriate antibiotic prescribing to Kentucky Medicaid children is common. Provider and patient characteristics associated with inappropriate prescribing differ from those associated with higher volume. Claims data are useful to describe inappropriate use and could be a valuable metric for provider feedback reports. Policies are needed to support analysis and dissemination of antibiotic prescribing reports and should include all provider types and geographic areas.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S87-S87
Author(s):  
Ebbing Lautenbach ◽  
Keith W Hamilton ◽  
Robert Grundmeier ◽  
Melinda M Neuhauser ◽  
Lauri Hicks ◽  
...  

Abstract Background Although most antibiotic use occurs in outpatients, antibiotic stewardship programs (ASPs) have primarily focused on inpatients. A major challenge for outpatient ASPs is lack of accurate and accessible electronic data to target interventions. We developed and validated an electronic algorithm to identify inappropriate antibiotic use for adult outpatients with acute pharyngitis. Methods In the University of Pennsylvania Health System, we used ICD-10 diagnostic codes to identify patient encounters for acute pharyngitis at outpatient practices between 3/15/17 – 3/14/18. Exclusion criteria included immunocompromising conditions, comorbidities, and concurrent infections that might require antibiotic use. We randomly selected 300 eligible subjects. Inappropriate antibiotic use based on chart review served as the basis for assessment of the electronic algorithm which was constructed using only data in the electronic health record (EHR). Criteria for appropriate prescribing, choice of antibiotic, and duration included positive streptococcal testing, use of penicillin/amoxicillin (absent b-lactam allergy), and 10 days maximum duration of therapy. Results Of 300 subjects, median age was 42, 75% were female, 64% were seen by internal medicine (vs. family medicine), and 69% were seen by a physician (vs. advanced practice provider). On chart review, 127 (42%) subjects received an antibiotic, of which 29 had a positive streptococcal test and 4 had another appropriate indication. Thus, 74% (94/127) of patients received antibiotics inappropriately. Of the 29 patients who received appropriate prescribing, 27 (93%) received an appropriate antibiotic. Finally, of the 29 patients who were appropriately treated, 29 (100%) received the correct duration. Test characteristics of the EHR algorithm (compared to chart review) are noted in the Table. Conclusion Inappropriate antibiotic prescribing for acute pharyngitis is common. An electronic algorithm for identifying inappropriate prescribing, antibiotic choice, and duration is highly accurate. This algorithm could be used to efficiently assess prescribing among practices and individual clinicians. The impact of interventions based on this algorithm should be tested in future work. Test Characteristics of Electronic Algorithm for Inappropriate Prescribing, Agent, and Duration Disclosures All Authors: No reported disclosures


2020 ◽  
Vol 1;24 (1;1) ◽  
pp. 31-40

BACKGROUND: Long-term opioid therapy was prescribed with increasing frequency over the past decade. However, factors surrounding long-term use of opioids in older adults remains poorly understood, probably because older people are not at the center stage of the national opioid crisis. OBJECTIVES: To estimate the annual utilization and trends in long-term opioid use among older adults in the United States. STUDY DESIGN: Retrospective cohort study. SETTING: Data from Medicare-enrolled older adults. METHODS: This study utilized a nationally representative sample of Medicare administrative claims data from the years 2012 to 2016 containing records of health care services for more than 2.3 million Medicare beneficiaries each year. Medicare beneficiaries who were 65 years of age or older and who were enrolled in Medicare Parts A, B, and D, but not Part C, for at least 10 months in a year were included in the study. We measured annual utilization and trends in new long-term opioid use episodes over 4 years (2013–2016). We examined claims records for the demographic characteristics of the eligible individuals and for the presence of chronic non-cancer pain (CNCP), cancer, and other comorbidities. RESULTS: From 2013 to 2016, administrative claims of approximately 2.3 million elderly Medicare beneficiaries were analyzed in each year with a majority of them being women (~56%) and white (~82%) with a mean age of approximately 75 years. The proportion of all eligible beneficiaries with at least one new opioid prescription increased from 6.64% in 2013, peaked at 10.32% in 2015, and then decreased to 8.14% in 2016. The proportion of individuals with long-term opioid use among those with a new opioid prescription was 12.40% in 2013 and 10.20% in 2016. Among new long-term opioid users, the proportion of beneficiaries with a cancer diagnosis during the study years increased from 13.30% in 2013 to 15.67% in 2016, and the proportion with CNCP decreased from 30.25% in 2013 to 27.36% in 2016. Across all years, long-term opioid use was consistently high in the Southern states followed by the Midwest region. LIMITATIONS: This study used Medicare fee-for-service administrative claims data to capture prescription fill patterns, which do not allow for the capture of individuals enrolled in Medicare Advantage plans, cash prescriptions, or for the evaluation of appropriateness of prescribing, or the actual use of medication. This study only examined long-term use episodes among patients who were defined as opioid-naive. Finally, estimates captured for 2016 could only utilize data from 9 months of the year to capture 90-day long-term-use episodes. CONCLUSIONS: Using a national sample of elderly Medicare beneficiaries, we observed that from 2013 to 2016 the use of new prescription opioids increased from 2013 to 2014 and peaked in 2015. The use of new long-term prescription opioids peaked in 2014 and started to decrease from 2015 and 2016. Future research needs to evaluate the impact of the changes in new and long-term prescription opioid use on population health outcomes. KEY WORDS: Long-term, opioids, older adults, trends, Medicare, chronic non-cancer pain, cancer, cohort study


2020 ◽  
Vol 8 (1) ◽  
pp. 35
Author(s):  
Hetal N. Jeeyani ◽  
Rutvik H. Parikh ◽  
Sheena Sivanandan ◽  
Harsh J. Muliya ◽  
Shivam N. Badiyani ◽  
...  

Background: Inappropriate use and overuse of antibiotics are important factors leading to increased bacterial resistance apart from increased risk of adverse reactions. The aim of this study was to derive antibiotic use percentage, study its pattern and compare antibiotic prescribing indicators with standard indicators.Methods: This prospective observational study was conducted from 1st August 2018 to 31st July 2019 on paediatric inpatients from 1 month to 14 years. All the relevant data was taken from the case records of patients at the time of discharge. The data included: age, sex, hospital stay, clinical diagnosis and details of antimicrobial treatment.Results: From 989 patients, 85.9% were diagnosed with infectious illness, of which 60.1% had viral and 36.7% had bacterial infection. The use of antimicrobial drugs was 42.7% and antibiotics was 40.4%. The mean number of antibiotics received was 1.13±0.31. 90% patients received single antibiotic. 88.8% drugs were prescribed by generic name and 99% drugs were prescribed from essential drug formulary. 17 different antibiotics were used out of which ceftriaxone (62.5%) was the most commonly used. Groupwise, antibiotic use was cephalosporins (68.4%), penicillin (20.2%), aminoglycosides (4.31%), fluoroquinolones (0.9%) and macrolides (0.22%). The use of higher antibiotics like vancomycin (3.86%) and carbapenems (0.68%) was quite less.Conclusions: The antibiotic use in our hospital was higher than the WHO standard but less as compared to majority of other studies. Use of cephalosporins was more and penicillin was less as compared to other studies. This suggests that there is a need of implementing antibiotic stewardship programs to enhance rational antibiotic prescribing.


Geriatrics ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 61 ◽  
Author(s):  
Lai San Kong ◽  
Farida Islahudin ◽  
Leelavathi Muthupalaniappen ◽  
Wei Wen Chong

Antibiotics are commonly prescribed among older adults, and inappropriate use of antibiotics has been noted. However, there is limited information about their knowledge and expectations for antibiotics. This study aimed to assess older adults’ knowledge of antibiotic use and resistance, their expectations for antibiotics and the relationship between knowledge, expectation and inappropriate practices related to antibiotic use. A cross-sectional survey involving respondents aged 60 years and above was conducted, using a validated questionnaire. A lack of knowledge about the role of antibiotics was observed, whereby more than half of the respondents incorrectly believed that antibiotics can treat viral infections (53.5%) and colds and coughs (53.7%). Also, 67.9% of respondents incorrectly believed that antibiotic resistance occurs when the body becomes resistant to antibiotics. Almost half of the respondents would expect antibiotics for symptoms of self-limiting viral infections. Respondents who answered correctly for the role of antibiotics in viral infections were more likely not to expect antibiotics for cold, flu and cough (p < 0.001). Respondents who answered correctly regarding the need to adhere to antibiotics were more likely to have completed their antibiotic course (p < 0.001). Future educational initiatives should provide key information on the role of antibiotics and the importance of complying with antibiotics in this population.


2020 ◽  
Vol 35 ◽  
pp. 29-38
Author(s):  
Abhay K. Shah ◽  
Aashay Abhay Shah

Antimicrobial resistance is a global problem and is particularly pressing in developing countries where the infectious disease burden is very high. In developing countries, where relatively easy availability and higher consumption of medicines have led to disproportionately higher incidence of inappropriate use of antibiotics and greater levels of resistance compared to developed countries. The bacterial disease burden in India is among the highest in the world; consequently, antibiotics will play a critical role in limiting morbidity and mortality in the country. Improving antibiotic prescribing and use is critical to effectively treat infections, protect patients from harms caused by unnecessary antibiotic use, and combat antibiotic resistance. Responsible antibiotic therapy is one of the most important components of antibiotic stewardship. The current article is an attempt to provide a set of key principles to guide efforts to improve responsible and rational antibiotic use.


2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S184-S184
Author(s):  
Ariana Saatchi ◽  
Jennifer Reid ◽  
Marcus Povitz ◽  
Salimah Shariff ◽  
Michael Silverman ◽  
...  

Abstract Background Antimicrobials remain among the most prescribed medications in Canada, with over 90% prescribed in outpatient settings. Older adults (aged ≥65 years) prescribed antimicrobials are particularly vulnerable to adverse drug events and antimicrobial resistance. This study compared annual rates of indication-associated, outpatient prescribing to seniors across two Canadian provinces. Methods All outpatient, oral antimicrobials dispensed to older adults (≥65 years) were identified from administrative health databases, from 2000 to 2018. Antimicrobials were limited to outpatient use only and linked to an indication using a 3-tiered diagnostic hierarchy. When possible, a record of dispensation was matched to a tier 1 indication (always require antibiotics) first. In the absence of a tier 1 indication, priority was given to tier 2 (sometimes require antibiotics), then 3 (never require antibiotics). Prescription rates were calculated per 1000 population, and trends were examined overall, by drug class, and patient demographics. Results Our study included over 18 million individuals (aged ≥65 years) with a total of 23,773,552 antibiotic prescriptions issued to seniors, for common infections. In both provinces, prescribing for tier 1 diagnoses increased over the study period (BC: 44%; ON: 28%). Urinary tract infections accounted for most prescriptions within this tier (ON: 89 prescriptions/1000, BC: 129 prescriptions/1000 population by 2018). Pneumonia-associated prescribing increased by roughly 10% in both provinces. In any given study year, for both provinces, tier 3 diagnosis was the most common reason for antibiotic use, accounting for 50% of all indication-associated antibiotic prescribing. As diagnoses within this tier do not warrant prescribing all antibiotics issued are therefore inappropriate prescriptions. Figure 1. Rates of indication-associated antibiotic use in Canadian seniors, from 2000 to 2018. Conclusion Elevated prescribing to seniors continues across Canadian outpatient settings. Antibiotic prescribing remains an issue of high concern with 50% of all antimicrobials prescribed to seniors, for common infections, used inappropriately. Disclosures All Authors: No reported disclosures


Author(s):  
Varea H Costello ◽  
David Tribble ◽  
Christa Eickhoff ◽  
D Hamilton Tilley ◽  
Gregory Utz ◽  
...  

Abstract Background Antibiotic stewardship in the pre-travel care of older adults is important to effectively treat infections while minimizing harm from side effects and unnecessary antibiotic use. The objective of this study was to compare the characteristics, risk behaviors, infectious diseases and antibiotic use between older (≥ 60 years) and younger (18-59 years) travelers. Methods TravMil is a prospective, observational cohort of United States Department of Defense beneficiaries traveling outside the continental US for ≤ 6.5 months. For this analysis, we included adults enrolled pre-travel between January 2010–August 2018 and excluded active duty personnel on deployment. Pre- and post-travel surveys captured trip characteristics, exposures, illnesses, and antibiotic use. Results 1742 travelers were analyzed: 747 (42.9%) were ≥ 60 years and 995 (57.1%) were 18-59 years. Older travelers were less likely to engage in high-risk dietary behaviors and experience travelers’ diarrhea than younger travelers (18.2% vs 22.9%; p&lt;0.05). Influenza-like illnesses (12.5%) and febrile illness (3.4%) occurred less frequently in the older cohort. Antibiotic use for self treatment was common in both age groups (25.7% vs. 26.7%) and often inappropriate e.g. for treatment of occasional loose stool or mild travelers’ diarrhea (older adults 67.0% [67/100] vs. younger adults 57.6% [83/144]; p &lt;0.05), and influenza-like illnesses (63.4% [64/101] vs. 58.6% [68/116]; p&lt;0.05). Conclusions Older travelers were less likely to engage in high-risk behaviors and experience travelers’ diarrhea, and both age groups experienced mild, self-limited infections. Inappropriate use of antibiotics was common, suggesting that antimicrobial stewardship should be emphasized at pre-travel counseling with international travelers.


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