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Tacconelli E, Górska A, De Angelis G, Lammens C, Restuccia G, Schrenzel J, Huson DH, Carević B, Preoţescu L, Carmeli Y, Kazma M, Spanu T, Carrara E, Malhotra-Kumar S, Gladstone BP. Estimating the association between antibiotic exposure and colonization with extended-spectrum β-lactamase-producing Gram-negative bacteria using machine learning methods: a multicentre, prospective cohort study. Clin Microbiol Infect 2019; 26:87-94. [PMID: 31128285 DOI: 10.1016/j.cmi.2019.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/20/2019] [Accepted: 05/13/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of the study was to measure the impact of antibiotic exposure on the acquisition of colonization with extended-spectrum β-lactamase-producing Gram-negative bacteria (ESBL-GNB) accounting for individual- and group-level confounding using machine-learning methods. METHODS Patients hospitalized between September 2010 and June 2013 at six medical and six surgical wards in Italy, Serbia and Romania were screened for ESBL-GNB at hospital admission, discharge, antibiotic start, and after 3, 7, 15 and 30 days. Primary outcomes were the incidence rate and predictive factors of new ESBL-GNB colonization. Random forest algorithm was used to rank antibiotics according to the risk of selection of ESBL-GNB colonization in patients not colonized before starting antibiotics. RESULTS We screened 10 034 patients collecting 28 322 rectal swab samples. New ESBL-GNB colonization incidence with and without antibiotic treatment was 22/1000 and 9/1000 exposure-days, respectively. In the adjusted regression analyses, antibiotic exposure (hazard ratio (HR) 2.38; 95% CI 1.29-4.40), age 60-69 years (HR 1.19; 95% CI 1.05-1.34), and spring season (HR 1.25; 95% CI 1.14-1.38) were independently associated with new colonization. Monotherapy ranked higher als combination therapy in promoting ESBL-GNB colonization. Among monotherapy, cephalosporins ranked first followed by tetracycline (second), macrolide (fourth) and cotrimoxazole (seventh). Overall the ranking of cephalosporins was lower when used in combination. Among combinations not including cephalosporins, quinolones plus carbapenems ranked highest (eighth). Among sequential therapies, quinolones ranked highest (tenth) when prescribed within 30 days of therapy with cephalosporins. CONCLUSIONS Impact of antibiotics on selecting ESBL-GNB at intestinal level varies if used in monotherapy or combination and according to previous antibiotic exposure. These finding should be explored in future clinical trials on antibiotic stewardship interventions. CLINICAL TRIAL REGISTRATION NCT01208519.
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Affiliation(s)
- E Tacconelli
- Division of Infectious Disease, Department of Internal Medicine I, Tübingen University Hospital, Tübingen, Germany; Division of Infectious Diseases, Department of Diagnostic and Public Health, University of Verona, Italy.
| | - A Górska
- Algorithms in Bioinformatics, University of Tübingen and International Max Planck Research School, Tübingen, Germany
| | - G De Angelis
- Institute of Microbiology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy
| | - C Lammens
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute, University of Antwerp, Antwerp, Belgium
| | - G Restuccia
- Department of Anaesthesiology and Intensive Care Medicine, University of Catania, Catania, Italy
| | - J Schrenzel
- Bacteriology Laboratory, Service of Infectious Diseases, University of Geneva Hospitals and Medical Faculty, Geneva, Switzerland
| | - D H Huson
- Algorithms in Bioinformatics, University of Tübingen and International Max Planck Research School, Tübingen, Germany
| | - B Carević
- Department for Hospital Epidemiology, Clinical Centre of Serbia, Belgrade, Serbia
| | - L Preoţescu
- National Institute for Infectious Diseases, University of Medicine 'Carol Davila', Bucharest, Romania
| | - Y Carmeli
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; National Centre for Infection Control, Israel Ministry of Health, Tel Aviv, Israel
| | - M Kazma
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; National Centre for Infection Control, Israel Ministry of Health, Tel Aviv, Israel
| | - T Spanu
- Institute of Microbiology, Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy
| | - E Carrara
- Division of Infectious Diseases, Department of Diagnostic and Public Health, University of Verona, Italy
| | - S Malhotra-Kumar
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute, University of Antwerp, Antwerp, Belgium
| | - B P Gladstone
- Division of Infectious Disease, Department of Internal Medicine I, Tübingen University Hospital, Tübingen, Germany
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Sarkar R, Gladstone BP, Warier JP, Sharma SL, Raman U, Muliyil J, Kang G. Rotavirus and other Diarrheal Disease in a Birth Cohort from Southern Indian Community. Indian Pediatr 2017; 53:583-8. [PMID: 27508534 DOI: 10.1007/s13312-016-0892-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To describe the incidence, severity and etiology of diarrheal disease in infants and young children residing in an urban slum community in Southern India. SETTING Three contiguous urban slums in Vellore, Tamil Nadu. PARTICIPANTS 452 children participating in a birth cohort study on diarrheal disease; 373 completed three years of follow-up. OUTCOME MEASURES Diarrheal incidence (obtained by twice-weekly home visits) and severity (assessed by the Vesikari scoring system), and etiological agents associated with diarrhea (through examination of stool specimens by bacteriologic culture, rotavirus enzyme immunoassay, PCR for norovirus and microscopy for parasites). RESULTS A total of 1856 diarrheal episodes were reported in 373 children. The overall incidence rate of diarrhea was 1.66 episodes per child year for three years, with 2.76 episodes per child year in infancy. The incidence peaked during the months of July and August. Severe diarrhea formed 8% of the total episodes. Rotavirus was the most common pathogen detected, being identified in 18% of episodes. Good hygiene status resulted in 33% protection against moderate-to-severe diarrhea. CONCLUSIONS This study highlights the burden of diarrheal disease and the important etiological agents of childhood diarrhea in Southern India. Promotion of hygienic behavior through health education may help reduce diarrheal incidence in this and similar communities.
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Affiliation(s)
- R Sarkar
- Division of Gastrointestinal Sciences, and *Community Health Department, Christian Medical College, Vellore, Tamil Nadu, India. Correspondence to: Dr Gagandeep Kang, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632 004, Tamil Nadu, India.
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Lindekilde N, Gladstone BP, Lübeck M, Nielsen J, Clausen L, Vach W, Jones A. The impact of bariatric surgery on quality of life: a systematic review and meta-analysis. Obes Rev 2015; 16:639-51. [PMID: 26094664 DOI: 10.1111/obr.12294] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022]
Abstract
This study aims to review the obesity literature in order to assess the impact of bariatric surgery on quality of life and the between-study variation by examining the standardized mean magnitude of effect in change in the levels of quality of life. The following databases EMBASE, PubMed, PsycINFO, CINAHL, the Cochrane Library and Web of Science were systematically searched for studies examining change in quality of life in adults receiving bariatric surgery for obesity. Seventy-two studies were included with a total of 9,433 participants treated for obesity with bariatric surgery. The average impact of bariatric surgery on quality of life corresponded to an effect size of 0.88 (95% CI: 0.80-0.96), indicating that bariatric surgery has a significant positive influence on quality of life in general. The impact varied considerably across studies with bariatric surgery showing a significantly greater positive influence on physical quality of life compared to mental quality of life. Bariatric surgery is effective in improving quality of life, especially when looking at physical well-being. Greater focus on the psychological well-being of the person undergoing surgery for obesity may lead to a better post-surgery prognosis for more people.
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Affiliation(s)
- N Lindekilde
- Institute of Psychology, University of Southern Denmark, Odense, Denmark
| | - B P Gladstone
- Institute of Medical Biometry and Medical Informatics, University Medical Centre Freiburg, Freiburg im Breisgau, Germany
| | - M Lübeck
- Institute of Psychology, University of Southern Denmark, Odense, Denmark
| | - J Nielsen
- Institute of Psychology, University of Southern Denmark, Odense, Denmark
| | - L Clausen
- Centre of Child- and Adolescent Psychiatry, Aarhus University Hospital, Aarhus, Denmark
| | - W Vach
- Institute of Medical Biometry and Medical Informatics, University Medical Centre Freiburg, Freiburg im Breisgau, Germany
| | - A Jones
- Institute of Psychology, University of Southern Denmark, Odense, Denmark
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Sowmyanarayanan TV, Mukhopadhya A, Gladstone BP, Sarkar R, Kang G. Investigation of a hepatitis A outbreak in children in an urban slum in Vellore, Tamil Nadu, using geographic information systems. Indian J Med Res 2008; 128:32-7. [PMID: 18820356 PMCID: PMC3855648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND & OBJECTIVE An outbreak of symptomatic viral hepatitis in children less than 10 yr of age in Vellore, south India, was investigated and the disease pattern studied using serological and epidemiological methods, supplemented by geographic information systems (GIS) mapping. METHODS Three cases of hepatitis A were identified during routine surveillance in a birth cohort House-to-house visits were undertaken to identify other symptomatic cases and samples collected for anti- HAV IgM, ELISA testing. All cases and controls were mapped and geo-referenced using Arc View GIS 3.3. Spatial clustering was investigated using SaTScan 7.0.1 software. Drinking water sources were tested for coliform counts with the most probable number technique. RESULTS Of the 965 children surveyed, 26 (2.78%) had jaundice between February to July 2006. From the 26 patients, 11 (42.3%) blood samples were obtained and tested for anti-HAV IgM; 10 (90.9%) were found to be positive. Water analysis showed high coliform counts in all samples. No spatial clustering of cases could be detected. INTERPRETATION & CONCLUSION The outbreak was identified because of the symptomatic presentation of the cases. Our study highlighted the increasing detection of symptomatic children with hepatitis A virus infection. Water sources in the area were contaminated and may have served as the source of infection. The lack of clustering in GIS analysis could be due to the common water source.
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Gladstone BP, Muliyil JP, Jaffar S, Wheeler JG, Le Fevre A, Iturriza-Gomara M, Gray JJ, Bose A, Estes MK, Brown DW, Kang G. Infant morbidity in an Indian slum birth cohort. Arch Dis Child 2008; 93:479-84. [PMID: 17916587 PMCID: PMC2682775 DOI: 10.1136/adc.2006.114546] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To establish incidence rates, clinic referrals, hospitalisations, mortality rates and baseline determinants of morbidity among infants in an Indian slum. DESIGN A community-based birth cohort with twice-weekly surveillance. SETTING Vellore, South India. SUBJECTS 452 newborns recruited over 18 months, followed through infancy. MAIN OUTCOME MEASURES Incidence rates of gastrointestinal illness, respiratory illness, undifferentiated fever, other infections and non-infectious morbidity; rates of community-based diagnoses, clinic visits and hospitalisation; and rate ratios of baseline factors for morbidity. RESULTS Infants experienced 12 episodes (95% confidence interval (CI) 11 to 13) of illness, spending about one fifth of their infancy with an illness. Respiratory and gastrointestinal symptoms were most common with incidence rates (95% CI) of 7.4 (6.9 to 7.9) and 3.6 (3.3 to 3.9) episodes per child-year. Factors independently associated with a higher incidence of respiratory and gastrointestinal illness were age (3-5 months), male sex, cold/wet season and household involved in beedi work. The rate (95% CI) of hospitalisation, mainly for respiratory and gastrointestinal illness, was 0.28 (0.22 to 0.35) per child-year. CONCLUSIONS The morbidity burden due to respiratory and gastrointestinal illness is high in a South Indian urban slum, with children ill for approximately one fifth of infancy, mainly with respiratory and gastrointestinal illnesses. The risk factors identified were younger age, male sex, cold/wet season and household involvement in beedi work.
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Affiliation(s)
- B P Gladstone
- Department of Community Health, Christian Medical College, Vellore, India
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Rao Ajjampur SS, Asirvatham JR, Muthusamy D, Gladstone BP, Abraham OCM, Mathai D, Ward H, Wanke C, Kang G. Clinical features & risk factors associated with cryptosporidiosis in HIV infected adults in India. Indian J Med Res 2007; 126:553-557. [PMID: 18219083 PMCID: PMC2673507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND & OBJECTIVE Cryptosporidiosis is a leading cause of protracted, life threatening diarrhoea in HIV infected patients. Although data on prevalence are available for Indian patients, no information on risk factors for transmission exists. We therefore undertook this study to identify risk factors for transmission of cryptosporidiosis in HIV infected adults. METHODS Both symptomatic (diarrhoeal) and asymptomatic HIV infected patients were screened for cryptosporidiosis. All Cryptosporidium spp. positive cases were enrolled in the study and interviewed to record socio-demographic information, water supply and animal contact. Data were analysed to study clinical features and potential association with species and genotype. RESULTS Of the 28 cryptosporidial infections identified on screening 111 HIV positive patients with diarrhoea, 10 (35.7%) had chronic diarrhoea, 14 (50%) had associated fever and 8 (28.6%) had nausea. Symptomatic patients had a significantly higher number of co-infections with other enteric parasites (P=0.04) than 20 asymptomatics of 423 HIV positive individuals screened. Eleven of 17 (64%) patients with potentially zoonotic infections had diarrhoea. Patients with zoonotic species (64%) also tended to have fever more frequently than those infected with C. hominis (58%). Association between area of residence, rural or urban, water source and contact with animals and acquisition of cryptosporidiosis was not statistically significant. INTERPRETATION & CONCLUSION Cryptosporidiosis is an important cause of morbidity in HIV infected individuals in India, resulting in chronic diarrhoea. Risk factors for potentially zoonotic transmission of cryptosporidiosis were described in this study, but larger studies need to be done for a clearer understanding of the transmission dynamics of different cryptosporidial species in developing countries.
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Affiliation(s)
- S S Rao Ajjampur
- Department of Gastrointestinal Sciences, Christian Medical College Vellore,India
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