Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics

Abstract Background Antimicrobial resistance is a public health problem of global importance. In Singapore, much focus has been given to antibiotic usage patterns in hospital settings. Data on antibiotic use in primary care is lacking. We describe antibiotic usage patterns and assess factors contrib...

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Main Authors: Zaw Myo Tun, Mahesh Moorthy, Martin Linster, Yvonne C. F. Su, Richard James Coker, Eng Eong Ooi, Jenny Guek-Hong Low, Gavin J. D. Smith, Clarence C. Tam
Format: Article
Language:English
Published: BMC 2016-11-01
Series:Antimicrobial Resistance and Infection Control
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13756-016-0146-z
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author Zaw Myo Tun
Mahesh Moorthy
Martin Linster
Yvonne C. F. Su
Richard James Coker
Eng Eong Ooi
Jenny Guek-Hong Low
Gavin J. D. Smith
Clarence C. Tam
author_facet Zaw Myo Tun
Mahesh Moorthy
Martin Linster
Yvonne C. F. Su
Richard James Coker
Eng Eong Ooi
Jenny Guek-Hong Low
Gavin J. D. Smith
Clarence C. Tam
author_sort Zaw Myo Tun
collection DOAJ
description Abstract Background Antimicrobial resistance is a public health problem of global importance. In Singapore, much focus has been given to antibiotic usage patterns in hospital settings. Data on antibiotic use in primary care is lacking. We describe antibiotic usage patterns and assess factors contributing to antibiotic usage among adults presenting with acute febrile illness (AFI) in primary care settings in Singapore. Methods We analyzed data from the Early Dengue infection and outcome study. Adults with AFI presenting at 5 Singapore polyclinics were included. We used multivariable logistic regression to assess demographic, clinical and laboratory factors associated with antibiotic usage among adults with AFI. Results Between December 2007 and February 2013, 1884 adult AFI patients were enrolled. Overall, 16% of adult AFI patients reported antibiotic use. We observed a rise in the use of over-the-counter medications in late 2009 and a decrease in antibiotic use during 2010, possibly related to the outbreak of pandemic influenza A H1N1 virus. After adjusting for age, gender, polyclinic and year of enrolment, the following factors were associated with higher odds of antibiotic use: living in landed property (compared to public housing) (OR = 1.73; 95% CI: 1.06–2.80); body mass index (BMI) <18.5 (OR = 1.87; 95% CI: 1.19–2.93); elevated white blood cell (WBC) count (OR = 1.98; 95% CI: 1.42–2.78); and persistence of initial symptoms at 2–3 days follow-up with OR (95% CI) for categories of 1, 2, 3, and ≥4 persisting symptoms being 2.00 (1.38–2.92), 2.67 (1.80–3.97), 4.26 (2.73–6.64), and 2.79 (1.84–4.24) respectively. Conclusions Our study provides insights on antibiotic usage among adult patients presenting to primary care clinics with febrile illness, and suggests that high socio-economic status, and risk factors of a severe illness, that is, low BMI and persistence of initial symptoms, are associated with higher antibiotic use. Further work to understand trends of antibiotic usage in both private and public primary care clinics, and factors that influence patient expectation and physician prescribing of antibiotics is important.
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spelling doaj.art-b1b44b1f05fa450485c324f9e014605b2022-12-22T01:10:43ZengBMCAntimicrobial Resistance and Infection Control2047-29942016-11-01511810.1186/s13756-016-0146-zPatterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinicsZaw Myo Tun0Mahesh Moorthy1Martin Linster2Yvonne C. F. Su3Richard James Coker4Eng Eong Ooi5Jenny Guek-Hong Low6Gavin J. D. Smith7Clarence C. Tam8Saw Swee Hock School of Public Health, National University of SingaporeDuke-National University of Singapore Medical SchoolDuke-National University of Singapore Medical SchoolDuke-National University of Singapore Medical SchoolLondon School of Hygiene and Tropical MedicineDuke-National University of Singapore Medical SchoolDepartment of Infectious Disease, Singapore General HospitalDuke-National University of Singapore Medical SchoolSaw Swee Hock School of Public Health, National University of SingaporeAbstract Background Antimicrobial resistance is a public health problem of global importance. In Singapore, much focus has been given to antibiotic usage patterns in hospital settings. Data on antibiotic use in primary care is lacking. We describe antibiotic usage patterns and assess factors contributing to antibiotic usage among adults presenting with acute febrile illness (AFI) in primary care settings in Singapore. Methods We analyzed data from the Early Dengue infection and outcome study. Adults with AFI presenting at 5 Singapore polyclinics were included. We used multivariable logistic regression to assess demographic, clinical and laboratory factors associated with antibiotic usage among adults with AFI. Results Between December 2007 and February 2013, 1884 adult AFI patients were enrolled. Overall, 16% of adult AFI patients reported antibiotic use. We observed a rise in the use of over-the-counter medications in late 2009 and a decrease in antibiotic use during 2010, possibly related to the outbreak of pandemic influenza A H1N1 virus. After adjusting for age, gender, polyclinic and year of enrolment, the following factors were associated with higher odds of antibiotic use: living in landed property (compared to public housing) (OR = 1.73; 95% CI: 1.06–2.80); body mass index (BMI) <18.5 (OR = 1.87; 95% CI: 1.19–2.93); elevated white blood cell (WBC) count (OR = 1.98; 95% CI: 1.42–2.78); and persistence of initial symptoms at 2–3 days follow-up with OR (95% CI) for categories of 1, 2, 3, and ≥4 persisting symptoms being 2.00 (1.38–2.92), 2.67 (1.80–3.97), 4.26 (2.73–6.64), and 2.79 (1.84–4.24) respectively. Conclusions Our study provides insights on antibiotic usage among adult patients presenting to primary care clinics with febrile illness, and suggests that high socio-economic status, and risk factors of a severe illness, that is, low BMI and persistence of initial symptoms, are associated with higher antibiotic use. Further work to understand trends of antibiotic usage in both private and public primary care clinics, and factors that influence patient expectation and physician prescribing of antibiotics is important.http://link.springer.com/article/10.1186/s13756-016-0146-zAntimicrobial resistanceAntibiotic useAcute febrile illnessPrimary careSingapore
spellingShingle Zaw Myo Tun
Mahesh Moorthy
Martin Linster
Yvonne C. F. Su
Richard James Coker
Eng Eong Ooi
Jenny Guek-Hong Low
Gavin J. D. Smith
Clarence C. Tam
Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
Antimicrobial Resistance and Infection Control
Antimicrobial resistance
Antibiotic use
Acute febrile illness
Primary care
Singapore
title Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
title_full Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
title_fullStr Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
title_full_unstemmed Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
title_short Patterns of medication use and factors associated with antibiotic use among adult fever patients at Singapore primary care clinics
title_sort patterns of medication use and factors associated with antibiotic use among adult fever patients at singapore primary care clinics
topic Antimicrobial resistance
Antibiotic use
Acute febrile illness
Primary care
Singapore
url http://link.springer.com/article/10.1186/s13756-016-0146-z
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