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Zaheer HA, Moehling Geffel K, Chamseddine S, Liu H, Williams JV, Martin JM, Rick AM. Factors Associated With Nonprescription of Oseltamivir for Infant Influenza Over 9 Seasons. J Pediatric Infect Dis Soc 2024; 13:466-474. [PMID: 39082694 PMCID: PMC11424994 DOI: 10.1093/jpids/piae075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 07/22/2024] [Indexed: 09/27/2024]
Abstract
BACKGROUND The Centers for Disease Control and Prevention (CDC) recommends oseltamivir phosphate for children <2 years old with confirmed or suspected influenza as they are at high risk for complications. We analyzed infant characteristics associated with nonprescription of oseltamivir over 9 years. METHODS We conducted a retrospective electronic health record (EHR) review of infants <12 months old born between January 1, 2012 and December 31, 2019 within the University of Pittsburgh Medical Center health system in Southwestern Pennsylvania who had >2 well-child visits during their first year. Infants with a confirmed positive test for influenza were included in the analysis. Factors associated with infant oseltamivir nonprescription were assessed using multivariable logistic regression. RESULTS Of 457 infants with confirmed influenza, 86% were prescribed oseltamivir. The proportion of infants prescribed oseltamivir increased from an average of 64.6% during the 2012-2016 influenza seasons to 90.4% during the 2016-2020 influenza seasons. Infants were more likely to not be prescribed oseltamivir if they experienced >2 days of influenza symptoms (odds ratio (OR): 9.4, 95% CI: 4.8, 18.7, P < .001), were diagnosed during the 2012-2016 influenza seasons (OR: 4.2, 95% CI: 1.8, 9.5, P < .001), tested positive for influenza via a multiplex/reverse transcriptase polymerase chain reaction test (OR: 6.7, 95% CI: 2.7, 16.3, P < .001; OR: 2.7, 95% CI: 1.1, 7.1; P = .04), or did not have a fever at point-of-care (OR: 2.3, 95% CI: 1.2, 4.6, P = .01). CONCLUSION Adherence to CDC influenza antiviral treatment guidelines for infants is high and improved over time. However, the provision of targeted education to providers may further improve oseltamivir prescribing practices for high-risk children <12 months of age.
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Affiliation(s)
- Haniah A Zaheer
- Department of Ophthalmology, UPMC Eye Institute, Pittsburgh, Pennsylvania, USA
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Krissy Moehling Geffel
- Department of Family Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Sarah Chamseddine
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Hui Liu
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - John V Williams
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Judith M Martin
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Anne-Marie Rick
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Wallick C, To TM, Korom S, Masters H, Wu N, Moawad D, Hanania NA. Impact of antiviral therapy on short- and long-term outcomes of patients with chronic obstructive pulmonary disease after influenza infection. Influenza Other Respir Viruses 2023; 17:e13231. [PMID: 38098649 PMCID: PMC10719080 DOI: 10.1111/irv.13231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 12/17/2023] Open
Abstract
Background Respiratory complications often accompany influenza in patients with chronic obstructive pulmonary disease (COPD). In this retrospective study, we quantified the impact of antiviral therapy on exacerbations, healthcare resource utilization (HRU), and costs in patients with COPD across 5 influenza seasons. Methods Using claims data from US MarketScan® databases, we identified patients with COPD who had an influenza diagnosis during the 2012-2016 influenza seasons. Patients who received a neuraminidase inhibitor within 48 h of diagnosis (N = 4134) were identified and propensity score-matched 1:1 to a comparator cohort of untreated patients. We determined COPD- and pneumonia-related HRU and costs during month 1, each subsequent quarter, and months 2-13. Results Antiviral-treated patients had a significantly lower frequency of COPD-related outcomes than untreated patients during all periods (exacerbations: 10.4% vs 18.2% [month 1] and 17.7% vs 24.2% [months 2-13]; inpatient visit: 2.5% vs 7.9% [month 1] and 3.8% vs 6.7% [months 2-13]; P < 0.0001, all comparisons). Treated patients also had significantly lower outpatient and emergency department (ED) visits beyond month 1. Pneumonia-related inpatient, ED, and outpatient visits were significantly lower in antiviral-treated patients than in untreated patients over all periods (P < 0.0001, all comparisons). In all HRU categories, COPD- and pneumonia-related costs were significantly lower in treated patients over all periods (month-1 ED visit costs were higher). Conclusions Antiviral treatment in patients with COPD and influenza is associated with significantly lower HRU and costs in the postinfection month and for an entire year following infection compared with untreated patients.
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Affiliation(s)
| | - Tu My To
- Genentech, Inc.South San FranciscoCaliforniaUSA
| | | | | | - Ning Wu
- Genentech, Inc.South San FranciscoCaliforniaUSA
| | | | - Nicola A. Hanania
- Section of Pulmonary, Critical Care and Sleep MedicineBaylor College of MedicineHoustonTexasUSA
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3
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Antoon JW, Sarker J, Abdelaziz A, Lien PW, Williams DJ, Lee TA, Grijalva CG. Trends in Outpatient Influenza Antiviral Use Among Children and Adolescents in the United States. Pediatrics 2023; 152:e2023061960. [PMID: 37953658 PMCID: PMC10681853 DOI: 10.1542/peds.2023-061960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/23/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Influenza antivirals improve outcomes in children with duration of symptoms <2 days and those at high risk for influenza complications. Real-world prescribing of influenza antivirals in the pediatric population is unknown. METHODS We performed a cross-sectional study of outpatient and emergency department prescription claims in individuals <18 years of age included in the IBM Marketscan Commercial Claims and Encounters Database between July 1, 2010 and June 30, 2019. Influenza antiviral use was defined as any dispensing of oseltamivir, baloxavir, or zanamivir. The primary outcome was the rate of antiviral dispensing per 1000 enrolled children. Secondary outcomes included antiviral dispensing per 1000 influenza diagnoses and inflation-adjusted costs of antiviral agents. Outcomes were calculated and stratified by age, acute versus prophylactic treatment, influenza season, and geographic region. RESULTS The analysis included 1 416 764 unique antiviral dispensings between 2010 and 2019. Oseltamivir was the most frequently prescribed antiviral (99.8%). Dispensing rates ranged from 4.4 to 48.6 per 1000 enrolled children. Treatment rates were highest among older children (12-17 years of age), during the 2017 to 2018 influenza season, and in the East South Central region. Guideline-concordant antiviral use among young children (<2 years of age) at a high risk of influenza complications was low (<40%). The inflation-adjusted cost for prescriptions was $208 458 979, and the median cost ranged from $111 to $151. CONCLUSIONS There is wide variability and underuse associated with influenza antiviral use in children. These findings reveal opportunities for improvement in the prevention and treatment of influenza in children.
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Affiliation(s)
| | - Jyotirmoy Sarker
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois Chicago, Chicago, Illinois
| | - Abdullah Abdelaziz
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois Chicago, Chicago, Illinois
| | - Pei-Wen Lien
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois Chicago, Chicago, Illinois
| | | | - Todd A. Lee
- Department of Pharmacy Systems, Outcomes and Policy, College of Pharmacy, University of Illinois Chicago, Chicago, Illinois
| | - Carlos G. Grijalva
- Health Policy and Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee
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4
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Stamm BD, Tamerius J, Reddy S, Barlow S, Hamer C, Kempken A, Goss M, He C, Bell C, Arnold M, Checovich M, Temte E, Norton D, Chen G, Baltus J, Gurley ES, Temte JL. The Influence of Rapid Influenza Diagnostic Testing on Clinician Decision-Making for Patients With Acute Respiratory Infection in Urgent Care. Clin Infect Dis 2023; 76:1942-1948. [PMID: 36723863 PMCID: PMC10249985 DOI: 10.1093/cid/ciad038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/06/2023] [Accepted: 01/20/2023] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The potential benefits of using rapid influenza diagnostic tests (RIDTs) in urgent care facilities for clinical care and prescribing practices are understudied. We compared antiviral and antibiotic prescribing, imaging, and laboratory ordering in clinical encounters with and without RIDT results. METHODS We compared patients with acute respiratory infection (ARI) symptoms who received an RIDT and patients who did not at 2 urgent care facilities. Primary analysis using 1-to-1 exact matching resulted in 1145 matched pairs to which McNemar 2 × 2 tests were used to assess the association between the likelihood of prescribing, imaging/laboratory ordering, and RIDT use. Secondary analysis compared the same outcomes using logistic regression among the RIDT-tested population between participants who tested negative (RIDT(-)) and positive (RIDT(+)). RESULTS Primary analysis revealed that compared to the non-RIDT-tested population, RIDT(+) patients were more likely to be prescribed antivirals (OR, 10.23; 95% CI, 5.78-19.72) and less likely to be prescribed antibiotics (OR, 0.15; 95% CI, .08-.27). Comparing RIDT-tested to non-RIDT-tested participants, RIDT use increased antiviral prescribing odds (OR, 3.07; 95% CI, 2.25-4.26) and reduced antibiotic prescribing odds (OR, 0.52; 95% CI, .43-.63). Secondary analysis identified increased odds of prescribing antivirals (OR, 28.21; 95% CI, 18.15-43.86) and decreased odds of prescribing antibiotics (OR, 0.20; 95% CI, .13-.30) for RIDT(+) participants compared with RIDT(-). CONCLUSIONS Use of RIDTs in patients presenting with ARI symptoms influences clinician diagnostic and treatment decision-making, which could lead to improved patient outcomes, population-level reductions in influenza burden, and a decreased threat of antibiotic resistance.
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Affiliation(s)
- Brian D Stamm
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | | | | | - Shari Barlow
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Caroline Hamer
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Ashley Kempken
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Maureen Goss
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Cecilia He
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Cristalyne Bell
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Mitchell Arnold
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Mary Checovich
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Emily Temte
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Derek Norton
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Guanhua Chen
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Jeffrey Baltus
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
| | - Emily S Gurley
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jonathan L Temte
- School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WisconsinUSA
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5
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Antoon JW, Hall M, Feinstein JA, Kyler KE, Shah SS, Girdwood ST, Goldman JL, Grijalva CG, Williams DJ. Guideline-Concordant Antiviral Treatment in Children at High Risk for Influenza Complications. Clin Infect Dis 2023; 76:e1040-e1046. [PMID: 35867691 PMCID: PMC10169402 DOI: 10.1093/cid/ciac606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/05/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND National guidelines recommend antiviral treatment for children with influenza at high risk for complications regardless of symptom duration. Little is known about concordance of clinical practice with this recommendation. METHODS We performed a cross-sectional study of outpatient children (aged 1-18 years) at high risk for complications who were diagnosed with influenza during the 2016-2019 influenza seasons. High-risk status was determined using an existing definition that includes age, comorbidities, and residence in a long-term care facility. The primary outcome was influenza antiviral dispensing within 2 days of influenza diagnosis. We determined patient- and provider-level factors associated with guideline-concordant treatment using multivariable logistic regression. RESULTS Of the 274 213 children with influenza at high risk for influenza complications, 159 350 (58.1%) received antiviral treatment. Antiviral treatment was associated with the presence of asthma (aOR, 1.13; 95% confidence interval [CI], 1.11-1.16), immunosuppression (aOR, 1.10; 95% CI, 1.05-1.16), complex chronic conditions (aOR, 1.04; 95% CI, 1.01-1.07), and index encounter in the urgent care setting (aOR, 1.3; 95% CI, 1.26-1.34). Factors associated with decreased odds of antiviral treatment include age 2-5 years compared with 6-17 years (aOR, 0.95; 95% CI, .93-.97), residing in a chronic care facility (aOR, .61; 95% CI, .46-.81), and index encounter in an emergency department (aOR, 0.66; 95% CI, .63-.71). CONCLUSIONS Among children with influenza at high risk for complications, 42% did not receive guideline-concordant antiviral treatment. Further study is needed to elucidate barriers to appropriate use of antivirals in this vulnerable population.
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Affiliation(s)
- James W Antoon
- Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee, USA.,Division of Hospital Medicine, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matt Hall
- Children's Hospital Association, Lenexa, Kansas, USA
| | - James A Feinstein
- Department of Pediatrics, Adult and Child Consortium for Health Outcomes Research & Delivery Science, Children's Hospital Colorado, University of Colorado, Aurora, Colorado, USA
| | - Kathryn E Kyler
- Department of Pediatrics, Division of Hospital Medicine, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA
| | - Samir S Shah
- Divisions of Hospital Medicine and Infectious Diseases, Cincinnati Children's Hospital Medical Center & Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sonya Tang Girdwood
- Divisions of Hospital Medicine and Clinical Pharmacology, Cincinnati Children's Hospital Medical Center & Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jennifer L Goldman
- Department of Pediatrics, Division of Clinical Pharmacology, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA.,Department of Pediatrics, Division of Infectious Diseases, Children's Mercy Hospitals and Clinics, Kansas City, Missouri, USA
| | - Carlos G Grijalva
- Division of Pharmacoepidemiology, Departments of Health Policy and Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Derek J Williams
- Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee, USA.,Division of Hospital Medicine, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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6
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Wallick C, To TM, Korom S, Masters H, Hanania NA, Moawad D. Impact of influenza infection on the short- and long-term health of patients with chronic obstructive pulmonary disease. J Med Econ 2022; 25:930-939. [PMID: 35837794 DOI: 10.1080/13696998.2022.2098630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Influenza is a common cause of acute respiratory infection that leads to exacerbation of underlying chronic obstructive pulmonary disease (COPD). To elucidate the short- and long-term effects of influenza in patients with COPD, we examined health care resource utilization (HRU) and costs up to 13 months following influenza infection. METHODS We conducted a retrospective cohort study using U.S. insurance claims data from MarketScan. Patients with an influenza diagnosis during the 2012-2014 influenza seasons and continuous enrollment in a health plan from 12 months before to 13 months after the index influenza diagnosis were identified and propensity score-matched 1:5 to controls without evidence of influenza. COPD- and pneumonia-related outcomes were assessed over 13 months following influenza diagnosis. RESULTS COPD-associated outcomes after diagnosis were significantly worse in patients with influenza (n = 7,087) vs. controls (n = 35,435) during the first month (exacerbation: 16.1 vs. 3.4%; outpatient visits: 57.1 vs. 35.2%; emergency department (ED) visits: 10.5 vs. 1.8%; and inpatient visits: 5.6 vs. 0.7%) and months 2-13 (exacerbation: 25.1 vs. 21.1%; outpatient visits: 86.1 vs. 85.8%; ED visits: 20.0 vs. 15.7%; and inpatient visits: 6.5 vs. 5.3%). COPD- and pneumonia-associated costs for months 1 and 2-13 were higher in patients with influenza. LIMITATIONS The study was subject to a residual imbalance between cohorts despite propensity score matching. The use of diagnostic codes to select patients and identify complications could introduce inaccuracies in estimating events. CONCLUSIONS HRU and costs were higher in COPD patients with influenza during the first month and over the entire year following infection. This suggests influenza has an impact on respiratory health in patients with COPD that lasts beyond the acute infection.
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Affiliation(s)
| | - Tu My To
- Genentech, Inc., South San Francisco, CA, USA
| | | | | | - Nicola A Hanania
- Section of Pulmonary and Critical Care Medicine, Baylor College of Medicine, Houston, TX, USA
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Model-Informed Repurposing of Medicines for SARS-CoV-2: Extrapolation of Antiviral Activity and Dose Rationale for Paediatric Patients. Pharmaceutics 2021; 13:pharmaceutics13081299. [PMID: 34452260 PMCID: PMC8399437 DOI: 10.3390/pharmaceutics13081299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/17/2022] Open
Abstract
Repurposing of remdesivir and other drugs with potential antiviral activity has been the basis of numerous clinical trials aimed at SARS-CoV-2 infection in adults. However, expeditiously designed trials without careful consideration of dose rationale have often resulted in treatment failure and toxicity in the target patient population, which includes not only adults but also children. Here we show how paediatric regimens can be identified using pharmacokinetic-pharmacodynamic (PKPD) principles to establish the target exposure and evaluate the implications of dose selection for early and late intervention. Using in vitro data describing the antiviral activity and published pharmacokinetic data for the agents of interest, we apply a model-based approach to assess the exposure range required for adequate viral clearance and eradication. Pharmacokinetic parameter estimates were subsequently used with clinical trial simulations to characterise the probability target attainment (PTA) associated with enhanced antiviral activity in the lungs. Our analysis shows that neither remdesivir, nor anti-malarial drugs can achieve the desirable target exposure range based on a mg/kg dosing regimen, due to a limited safety margin and high concentrations needed to ensure the required PTA. To date, there has been limited focus on suitable interventions for children affected by COVID-19. Most clinical trials have defined doses selection criteria empirically, without thorough evaluation of the PTA. The current results illustrate how model-based approaches can be used for the integration of clinical and nonclinical data, providing a robust framework for assessing the probability of pharmacological success and consequently the dose rationale for antiviral drugs for the treatment of SARS-CoV-2 infection in children.
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8
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Lian J, Adilijiang M, Chang C, Jiang H, Zhang Y. Neonatal outcomes after neuraminidase inhibitor use during pregnancy: A meta-analysis of cohort studies. Br J Clin Pharmacol 2021; 88:911-918. [PMID: 34378216 DOI: 10.1111/bcp.15033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/28/2021] [Accepted: 07/31/2021] [Indexed: 11/28/2022] Open
Abstract
AIM Influenza infection poses a severe threat to pregnant mothers, and antiviral treatment is recommended. However, the safety of neuraminidase-inhibitor antiviral medications during pregnancy has not been well described. METHODS A systematic review and meta-analysis were performed to evaluate the adverse neonatal outcomes associated with exposure to neuraminidase inhibitors during pregnancy. The PubMed, Embase and Cochrane Library databases were searched to identify potential studies for inclusion. RESULTS Nine cohort studies that estimated adverse neonatal outcomes associated with exposure to neuraminidase-inhibitor medication during pregnancy were included. Exposure to a neuraminidase inhibitor during pregnancy was not associated with an increased risk of congenital malformation (odds ratio [OR] 0.9, 95% confidence interval [CI] 0.72-1.12, P = .341), low Apgar score (OR 0.96, 95% CI 0.77-1.2, P = .733) or preterm birth (OR 0.99, 95% CI 0.89-1.09, P = .771) compared with no exposure. However, exposure to a neuraminidase inhibitor was associated with a reduced risk of low birth weight (OR 0.79, 95% CI 0.68-0.92, P = .002) and giving birth to a small-for-gestational-age infant (OR 0.78, 95% CI 0.69-0.88, P < .001). Further analyses limited to oseltamivir exposure were consistent with the overall results. CONCLUSION Exposure to neuraminidase-inhibitor medication during pregnancy does not appear to be associated with adverse neonatal outcomes. We recommend further studies to investigate this association, which will help clinicians determine whether to prescribe a neuraminidase inhibitor during pregnancy.
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Affiliation(s)
- Jiangshan Lian
- Department of Infectious Diseases, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China.,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Munire Adilijiang
- Department of Infectious Diseases, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Caihua Chang
- Department of Infectious Diseases, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Haiyin Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yongping Zhang
- Department of Infectious Diseases, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
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9
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Taieb V, Ikeoka H, Wojciechowski P, Jablonska K, Aballea S, Hill M, Hirotsu N. Efficacy and safety of baloxavir marboxil versus neuraminidase inhibitors in the treatment of influenza virus infection in high-risk and uncomplicated patients - a Bayesian network meta-analysis. Curr Med Res Opin 2021; 37:225-244. [PMID: 33079575 DOI: 10.1080/03007995.2020.1839400] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Previous network meta-analysis (NMA) demonstrated advantageous or similar efficacy of baloxavir marboxil (baloxavir) over neuraminidase inhibitors in otherwise healthy (OwH) influenza patients. This analysis assessed the efficacy and safety of baloxavir in the subgroup of high-risk (HR) patients and in the population of uncomplicated influenza consisting of OwH and HR patients with influenza. METHODS A systematic literature review (SLR) was performed in Medline, Embase, CENTRAL and ICHUSHI up to August 8th, 2018. A Bayesian NMA was conducted to compare baloxavir with oseltamivir, zanamivir, laninamivir and peramivir in HR patients and all uncomplicated patients. RESULTS Based on the SLR, a total of 32 studies were identified as pertinent for the analysis, including 7 studies on HR patients, 13 trials on OwH patients and 14 studies on OwH + HR population. NMA of 10 trials assessing HR patients demonstrated comparable time to alleviation of symptoms for all treatments. Mean decline in virus titer from baseline at 24 h after treatment was significantly greater for baloxavir compared with oseltamivir and peramivir. The risks of total complications and drug-related adverse events were comparable between baloxavir and zanamivir, oseltamivir and laninamivir. These findings were highly consistent with results of the NMA using pooled evidence on the uncomplicated population of OwH and HR patients. UNLABELLED Conclusions: Baloxavir was significantly more effective than placebo regarding all outcomes except for the risk of pneumonia. Besides, baloxavir was associated with similar clinical efficacy and safety, and superior antiviral activity compared to other antivirals in HR patients, as well as in the entire population of uncomplicated patients with influenza.
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Affiliation(s)
| | | | | | | | | | - Mark Hill
- Global Market Access, Shionogi Limited, London, UK
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10
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Dugas AF, Hsieh YH, LoVecchio F, Moran GJ, Steele MT, Talan DA, Rothman RE. Derivation and Validation of a Clinical Decision Guideline for Influenza Testing in 4 US Emergency Departments. Clin Infect Dis 2021; 70:49-58. [PMID: 30843056 DOI: 10.1093/cid/ciz171] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/27/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND An accurate diagnosis of influenza is essential for appropriate antiviral treatment, in accordance with Centers for Disease Control and Prevention (CDC) guidelines. However, no clear guidance exists on which patients should be tested. We sought to develop a clinical decision guideline (CDG) to inform influenza testing decisions for those adult emergency department (ED) patients deemed appropriate for antiviral treatment by CDC guidelines. METHODS A prospective cohort study was performed at 4 US EDs. From November 2013 to April 2014, we enrolled adult ED patients with fever or respiratory symptoms who met criteria for antiviral treatment, per 2013 CDC guidelines. All patients were tested for influenza using polymerase chain reaction. Data were randomly split into derivation (80%) and validation (20%) data sets. A discrete set of independent variables was selected by logistic regression, using the derivation set to create a scoring system, with a target sensitivity of at least 90%. The derived CDG was then validated. RESULTS Of 1941 enrolled participants, 183 (9.4%) had influenza. The derived CDG included new or increased cough (2 points), headache (1 point), subjective fever (1 point), and triage temperature >100.4°C (1 point), with a score of ≥3 indicating influenza testing was warranted. The CDG had a sensitivity and specificity of 94.1% and 36.6%, respectively, in the derivation set and of 91.5% and 34.6%, respectively, in the validation set. CONCLUSIONS A CDG with high sensitivity was derived and validated. Incorporation into practice could standardize testing for high-risk patients in adult EDs during influenza seasons, potentially improving diagnoses and treatment. CLINICAL TRIAL REGISTRATION NCT01947049.
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Affiliation(s)
- Andrea F Dugas
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Frank LoVecchio
- Department of Emergency Medicine, University of Arizona College of Medicine, Phoenix
| | - Gregory J Moran
- Department of Emergency Medicine, Department of Medicine, Division of Infectious Diseases, The David Geffen School of Medicine at University of California Los Angeles (UCLA), Olive View-UCLA Medical Center
| | - Mark T Steele
- Department of Emergency Medicine, University of Missouri-Kansas City School of Medicine/Truman Medical Center
| | - David A Talan
- Department of Emergency Medicine, Department of Medicine, Division of Infectious Diseases, The David Geffen School of Medicine at University of California Los Angeles (UCLA), Olive View-UCLA Medical Center
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland
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11
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Hsieh YH, Dugas AF, LoVecchio F, McBryde B, Ricketts EP, Saliba-Shaw K, Rothman RE. Intravenous peramivir vs oral oseltamivir in high-risk emergency department patients with influenza: Results from a pilot randomized controlled study. Influenza Other Respir Viruses 2020; 15:121-131. [PMID: 33006445 PMCID: PMC7767951 DOI: 10.1111/irv.12794] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 12/20/2022] Open
Abstract
Background Peramivir offers a single‐dose intravenous (IV) treatment option for influenza (vs 5‐day oral dosing for oseltamivir). We sought to compare outcomes of emergency department (ED) patients at high risk for influenza complications treated with IV peramivir vs oral oseltamivir. Methods During the 2015‐16 and 2016‐17 influenza seasons, adult patients in two US EDs were randomized to either oral oseltamivir or IV peramivir treatment group. Eligibility included positive molecular influenza test; met CDC criteria for antiviral treatment; able to provide informed consent and agree to follow‐up assessment. Outcomes were measured by clinical end‐point indicators, including FLU‐PRO Score, Ordinal Scale, Patient Global Impression on Severity Score, and Karnofsky Performance Scale for 14 days. Non‐inferior t test was performed to assess comparative outcomes between the two groups. Results Five hundred and seventy‐five (68%) of 847 influenza‐positive patients were approached. Two hundred and eighty‐four met enrollment criteria and 179 were enrolled; of these 95 (53%) were randomized to peramivir, and 84 to oseltamivir. Average FLU‐PRO score at baseline was similar (peramivir: 2.67 vs oseltamivir: 2.52); the score decreased over time for both groups (day 5: peramivir: 1.71 vs oseltamivir: 1.62; day 10: peramivir: 1.48 vs oseltamivir: 1.37; day 14: peramivir: 1.40 vs oseltamivir: 1.33; all P < .05 for significantly non‐inferior). Influenza‐related complications were similar between two groups (All: peramivir: 31% vs oseltamivir: 21%, P > .05; pneumonia: peramivir: 11% vs oseltamivir: 14%, P > .05). Conclusions Clinical outcomes of influenza‐infected patients treated with single‐dose IV peramivir were comparable to those treated with oral oseltamivir, suggesting potential utility of peramivir for influenza‐infected patients in the ED.
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Affiliation(s)
- Yu-Hsiang Hsieh
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrea F Dugas
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Frank LoVecchio
- Department of Emergency Medicine, University of Arizona College of Medicine, Phoenix, Arizona, USA
| | - Breana McBryde
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Erin P Ricketts
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kathryn Saliba-Shaw
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Richard E Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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12
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Abstract
PURPOSE OF REVIEW Seasonal and pandemic influenza are major causes of morbidity and mortality globally. Neuraminidase inhibitors (NAIs) are the only class of antiviral agent recommended for the treatment of currently circulating strains of influenza. There has previously been controversy over the level of evidence for patient benefit with NAIs. We review here the current evidence base for the clinical impact of treatment of influenza with NAIs. RECENT FINDINGS Meta-analysis of pharma-sponsored studies (including previously unpublished data) shows that NAIs reduce the duration of illness in influenza-infected patients, and suggest a possible reduction in the rate of complications and hospitalization. Meta-analysis of observational studies examining oseltamivir use during the H1N1 2009 pandemic, suggest a reduction in hospitalization rate in community-dwelling patients and a reduction in mortality in hospitalized adults treated with NAIs. Current NAI use in the community and hospitals varies widely but in general they are underutilized. SUMMARY Although there has been controversy over the level of evidence for patient benefit, a growing body of evidence suggests that treatment of influenza with NAIs is associated with improved outcomes for both patients in the community and more severely unwell patients in hospital. Clinical outcomes are optimal with earlier use and strategies to improve early widespread NAI utilization are needed.
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13
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Fowlkes AL, Steffens A, Reed C, Temte JL, Campbell AP. Influenza Antiviral Prescribing Practices and the Influence of Rapid Testing Among Primary Care Providers in the US, 2009-2016. Open Forum Infect Dis 2019; 6:ofz192. [PMID: 31205973 DOI: 10.1093/ofid/ofz192] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 04/17/2019] [Indexed: 11/14/2022] Open
Abstract
Background Early influenza antiviral treatment within 2 days of illness onset can reduce illness severity and duration. Reliance on low sensitivity rapid influenza diagnostic tests (RIDTs) to guide antiviral prescribing has been reported. We describe antiviral prescribing practices among primary care providers from a large surveillance network in the United States. Methods From 2009-2016, a network of 36 to 68 outpatient clinics per year collected respiratory specimens and clinical data for patients with influenza-like illness (ILI). Specimens were tested for influenza using polymerase chain reaction (PCR). We used multivariable logistic regression to assess factors influencing antiviral prescribing. Results Among 13 540 patients with ILI, 2766 (20%) were prescribed antivirals. In age groups recommended to receive empiric antiviral treatment for suspected influenza, 11% of children <2 years and 23% of adults ≥65 years received a prescription. Among 3681 patients with a positive PCR test for influenza, 40% tested negative by RIDT. In multivariable analysis, prescription receipt was strongly associated with a positive RIDT (adjusted odds ratio [aOR] 12, 95% CI 11-14) and symptom onset ≤2 days before visit (aOR 4.3, 95% CI 3.8-4.9). Antiviral prescribing was also more frequent among pediatric and private family practice clinics compared with community health centers (aOR 1.9, 95% CI 1.6-2.2, and 1.3, 95% CI 1.1-1.5, respectively). Conclusion Primary care providers were more likely to prescribe antivirals to patients with a positive RIDT, but antivirals were prescribed infrequently even to patients in high-risk age groups. Understanding patient and provider characteristics associated with antiviral prescribing is important for communicating treatment recommendations.
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Affiliation(s)
- Ashley L Fowlkes
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Andrea Steffens
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Carrie Reed
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jonathan L Temte
- University of Wisconsin-Madison, School of Medicine and Public Health, Madison, Wisconsin
| | - Angela P Campbell
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia
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14
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Abstract
Influenza vaccination is recommended for all children 6 months of age and older who do not have contraindications. This article provides an overview of information concerning burden of influenza among children in the United States; US-licensed influenza vaccines; vaccine immunogenicity, effectiveness, and safety; and recent updates relevant to use of these vaccines in pediatric populations. Influenza antiviral medications are discussed. Details concerning vaccine-related topics may be found in the current US Centers for Disease Control and Prevention/Advisory Committee on Immunization Practices recommendations for use of influenza vaccines (https://www.cdc.gov/vaccines/hcp/acip-recs/vacc-specific/flu.html). Additional information on influenza antivirals is located at https://www.cdc.gov/flu/professionals/antivirals/index.htm.
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15
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Uyeki TM. Oseltamivir Treatment of Influenza in Children. Clin Infect Dis 2018; 66:1501-1503. [PMID: 29315362 PMCID: PMC6669028 DOI: 10.1093/cid/cix1150] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 01/03/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Timothy M Uyeki
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
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16
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Stewart RJ, Flannery B, Chung JR, Gaglani M, Reis M, Zimmerman RK, Nowalk MP, Jackson L, Jackson ML, Monto AS, Martin ET, Belongia EA, McLean HQ, Fry AM, Havers FP. Influenza Antiviral Prescribing for Outpatients With an Acute Respiratory Illness and at High Risk for Influenza-Associated Complications During 5 Influenza Seasons-United States, 2011-2016. Clin Infect Dis 2018; 66:1035-1041. [PMID: 29069334 PMCID: PMC6018951 DOI: 10.1093/cid/cix922] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 10/20/2017] [Indexed: 11/14/2022] Open
Abstract
Background Influenza causes millions of illnesses annually; certain groups are at higher risk for complications. Early antiviral treatment can reduce the risk of complications and is recommended for outpatients at increased risk. We describe antiviral prescribing among high-risk outpatients for 5 influenza seasons and explore factors that may influence prescribing. Methods We analyzed antiviral prescription and clinical data for high-risk outpatients aged ≥6 months with an acute respiratory illness (ARI) and enrolled in the US Influenza Vaccine Effectiveness Network during the 2011-2012 through 2015-2016 influenza seasons. We obtained clinical information from interviews and electronic medical records and tested all enrollees for influenza with real-time reverse-transcription polymerase chain reaction (rRT-PCR). We calculated the number of patients with ARI that must be treated to treat 1 patient with influenza. Results Among high-risk outpatients with ARI who presented to care within 2 days of symptom onset (early), 15% (718/4861) were prescribed an antiviral medication, including 472 of 1292 (37%) of those with rRT-PCR-confirmed influenza. Forty percent of high-risk outpatients with influenza presented to care early. Earlier presentation was associated with antiviral treatment (odds ratio [OR], 4.1; 95% confidence interval [CI], 3.5-4.8), as was fever (OR, 3.2; 95% CI, 2.7-3.8), although 25% of high-risk outpatients with influenza were afebrile. Empiric treatment of 4 high-risk outpatients with ARI was needed to treat 1 patient with influenza. Conclusions Influenza antiviral medications were infrequently prescribed for high-risk outpatients with ARI who would benefit most. Efforts to increase appropriate antiviral prescribing are needed to reduce influenza-associated complications.
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Affiliation(s)
- Rebekah J Stewart
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Brendan Flannery
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jessie R Chung
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Manjusha Gaglani
- Baylor Scott & White Health, Texas A&M University Health Science Center College of Medicine, Temple
| | - Michael Reis
- Baylor Scott & White Health, Texas A&M University Health Science Center College of Medicine, Temple
| | | | | | - Lisa Jackson
- Kaiser Permanente Washington Health Research Institute (formerly Group Health Research Institute), Seattle
| | - Michael L Jackson
- Kaiser Permanente Washington Health Research Institute (formerly Group Health Research Institute), Seattle
| | - Arnold S Monto
- University of Michigan School of Public Health, Ann Arbor
| | - Emily T Martin
- University of Michigan School of Public Health, Ann Arbor
| | | | | | - Alicia M Fry
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Fiona P Havers
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
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17
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Arbefeville S, Thonen-Kerr E, Ferrieri P. Prospective and Retrospective Evaluation of the Performance of the FDA-Approved Cepheid Xpert Flu/RSV XC Assay. Lab Med 2017; 48:e53-e56. [DOI: 10.1093/labmed/lmx038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Pavia AT. Reducing diagnostic uncertainty to improve treatment of respiratory infections. THE LANCET RESPIRATORY MEDICINE 2017; 5:364-365. [PMID: 28392236 DOI: 10.1016/s2213-2600(17)30126-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 03/17/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Andrew T Pavia
- Division of Pediatric Infectious Diseases, Department of Pediatrics, University of Utah, Salt Lake City, UT 84108, USA.
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19
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20
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Oboho IK, Bramley A, Finelli L, Fry A, Ampofo K, Arnold SR, Self WH, Williams DJ, Courtney DM, Zhu Y, Anderson EJ, Grijalva CG, McCullers JA, Wunderink RG, Pavia AT, Edwards KM, Jain S. Oseltamivir Use Among Children and Adults Hospitalized With Community-Acquired Pneumonia. Open Forum Infect Dis 2016; 4:ofw254. [PMID: 28480248 DOI: 10.1093/ofid/ofw254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/04/2016] [Accepted: 11/18/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Data on oseltamivir treatment among hospitalized community-acquired pneumonia (CAP) patients are limited. METHODS Patients hospitalized with CAP at 6 hospitals during the 2010-2012 influenza seasons were included. We assessed factors associated with oseltamivir treatment using logistic regression. RESULTS Oseltamivir treatment was provided to 89 of 1627 (5%) children (<18 years) and 143 of 1051 (14%) adults. Among those with positive clinician-ordered influenza tests, 39 of 61 (64%) children and 37 of 48 (77%) adults received oseltamivir. Among children, oseltamivir treatment was associated with hospital A (adjusted odds ratio [aOR], 2.76; 95% confidence interval [CI], 1.36-4.88), clinician-ordered testing performed (aOR, 2.44; 95% CI, 1.47-5.19), intensive care unit (ICU) admission (aOR, 2.09; 95% CI, 1.27-3.45), and age ≥2 years (aOR, 1.43; 95% CI, 1.16-1.76). Among adults, oseltamivir treatment was associated with clinician-ordered testing performed (aOR, 8.38; 95% CI, 4.64-15.12), hospitals D and E (aOR, 3.46-5.11; 95% CI, 1.75-11.01), Hispanic ethnicity (aOR, 2.06; 95% CI, 1.18-3.59), and ICU admission (aOR, 2.05; 95% CI, 1.34-3.13). CONCLUSIONS Among patients hospitalized with CAP during influenza season, oseltamivir treatment was moderate overall and associated with clinician-ordered testing, severe illness, and specific hospitals. Increased clinician education is needed to include influenza in the differential diagnosis for hospitalized CAP patients and to test and treat patients empirically if influenza is suspected.
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Affiliation(s)
- Ikwo K Oboho
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.,Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Anna Bramley
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Lyn Finelli
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Alicia Fry
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Krow Ampofo
- University of Utah Health Sciences Center, Salt Lake City
| | - Sandra R Arnold
- Le Bonheur Children's Hospital, Memphis, Tennessee.,University of Tennessee Health Science Center, Memphis
| | - Wesley H Self
- Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | - D Mark Courtney
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Yuwei Zhu
- Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | | | - Jonathan A McCullers
- Le Bonheur Children's Hospital, Memphis, Tennessee.,University of Tennessee Health Science Center, Memphis
| | | | - Andrew T Pavia
- University of Utah Health Sciences Center, Salt Lake City
| | | | - Seema Jain
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
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21
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Zimmerman RK, Balasubramani GK, Nowalk MP, Eng H, Urbanski L, Jackson ML, Jackson LA, McLean HQ, Belongia EA, Monto AS, Malosh RE, Gaglani M, Clipper L, Flannery B, Wisniewski SR. Classification and Regression Tree (CART) analysis to predict influenza in primary care patients. BMC Infect Dis 2016; 16:503. [PMID: 27659721 PMCID: PMC5034457 DOI: 10.1186/s12879-016-1839-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 09/16/2016] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The use of neuraminidase-inhibiting anti-viral medication to treat influenza is relatively infrequent. Rapid, cost-effective methods for diagnosing influenza are needed to enable appropriate prescribing. Multi-viral respiratory panels using reverse transcription polymerase chain reaction (PCR) assays to diagnose influenza are accurate but expensive and more time-consuming than low sensitivity rapid influenza tests. Influenza clinical decision algorithms are both rapid and inexpensive, but most are based on regression analyses that do not account for higher order interactions. This study used classification and regression trees (CART) modeling to estimate probabilities of influenza. METHODS Eligible enrollees ≥ 5 years old (n = 4,173) who presented at ambulatory centers for treatment of acute respiratory illness (≤7 days) with cough or fever in 2011-2012, provided nasal and pharyngeal swabs for PCR testing for influenza, information on demographics, symptoms, personal characteristics and self-reported influenza vaccination status. RESULTS Antiviral medication was prescribed for just 15 % of those with PCR-confirmed influenza. An algorithm that included fever, cough, and fatigue had sensitivity of 84 %, specificity of 48 %, positive predictive value (PPV) of 23 % and negative predictive value (NPV) of 94 % for the development sample. CONCLUSIONS The CART algorithm has good sensitivity and high NPV, but low PPV for identifying influenza among outpatients ≥5 years. Thus, it is good at identifying a group who do not need testing or antivirals and had fair to good predictive performance for influenza. Further testing of the algorithm in other influenza seasons would help to optimize decisions for lab testing or treatment.
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Affiliation(s)
- Richard K. Zimmerman
- University of Pittsburgh, Pittsburgh, PA USA
- Department of Family Medicine, University of Pittsburgh, 3518 5th Avenue, Pittsburgh, PA USA
| | | | | | - Heather Eng
- University of Pittsburgh, Pittsburgh, PA USA
| | | | | | | | | | | | | | | | - Manjusha Gaglani
- Baylor Scott & White Health, Texas A&M Health Science Center College of Medicine, Temple, TX USA
| | - Lydia Clipper
- Baylor Scott & White Health, Texas A&M Health Science Center College of Medicine, Temple, TX USA
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22
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Havers F, Fry AM, Chen J, Christensen D, Moore C, Peacock G, Finelli L, Reed C. Hospitalizations Attributable to Respiratory Infections among Children with Neurologic Disorders. J Pediatr 2016; 170:135-41.e1-5. [PMID: 26687576 DOI: 10.1016/j.jpeds.2015.11.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/29/2015] [Accepted: 11/10/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To characterize respiratory infection hospitalizations in children with neurologic disorders and to compare them with those of the general pediatric population. STUDY DESIGN We analyzed claims data from commercial insurance and Medicaid enrollees < 19 years of age from July 2006 to June 2011 who had ≥ 1 visit with an International Classification of Diseases, Ninth Revision, diagnosis code for a neurologic disorder. We identified hospitalizations with primary diagnosis codes indicating a respiratory infection and compared hospitalization rates with random samples of children from the commercial and Medicaid databases (comparison groups). RESULTS Among 33,651923 children, 255,046 (0.76%) had ≥ 1 neurologic condition. Among children with neurologic conditions, 8249 of 68,717 hospitalizations (12%) were attributed to a respiratory infection (rate: 21/1000 person-years), although rates varied by disorder. Children with neurologic disorders had greater rates than children in comparison groups (relative rate: Commercial Claims 7.4 [95% CI 7.1-7.7]; Medicaid 5.0 [95% CI 4.8-5.2]). Children < 2 years were most likely to be hospitalized, although those 10-18 years were 14.5 (95% CI 13.3-16.7) times more likely to be hospitalized than age-matched comparison groups. Co-occurring deafness, blindness, and scoliosis were associated with increased respiratory hospitalization rates. CONCLUSIONS Children with neurologic disorders are at 5- to 7-fold greater risk for hospitalization from respiratory infections compared with all children, although rates vary widely by disorder type, age, and comorbidities. Children with specific neurologic disorders and those who had co-occurring conditions have the highest rates.
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Affiliation(s)
- Fiona Havers
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA.
| | - Alicia M Fry
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - Jufu Chen
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - Deborah Christensen
- Division of Birth Defects and Developmental Disabilities, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - Cynthia Moore
- Division of Birth Defects and Developmental Disabilities, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - Georgina Peacock
- Division of Human Development and Disabilities, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - Lyn Finelli
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - Carrie Reed
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA
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