2016
Spatial measurement errors in the field of spatial epidemiology
Zhang Z, Manjourides J, Cohen T, Hu Y, Jiang Q. Spatial measurement errors in the field of spatial epidemiology. International Journal Of Health Geographics 2016, 15: 21. PMID: 27368370, PMCID: PMC4930612, DOI: 10.1186/s12942-016-0049-5.Peer-Reviewed Original ResearchConceptsSpatial measurement errorsLocation measurement errorsMeasurement errorGlobal Positioning SystemNew statistical methodologyCovariate measurement errorPositioning systemNon-instrumental errorsStatistical methodologyGeographic information systemPractical examplesInstrumental errorsTheoretical modelErrorSpatial epidemiologySpatial dataPossible solutionsSuch errors
2014
Magnitude and sources of bias in the detection of mixed strain M. tuberculosis infection
Plazzotta G, Cohen T, Colijn C. Magnitude and sources of bias in the detection of mixed strain M. tuberculosis infection. Journal Of Theoretical Biology 2014, 368: 67-73. PMID: 25553967, PMCID: PMC7011203, DOI: 10.1016/j.jtbi.2014.12.009.Peer-Reviewed Original ResearchConceptsMixed infectionsM. tuberculosis infectionIncidence of TBOutcome of treatmentPopulation-level interventionsFraction of casesTuberculosis infectionMinority strainsActual prevalenceInfected individualsInfectionStudy designMycobacterium tuberculosisPrevalenceSputumTuberculosisDistinct strainsDifferent strainsSources of biasPrevious studiesPatientsSpecific reasonsIncidenceIndividuals
2010
Estimating the magnitude and direction of bias in tuberculosis drug resistance surveys conducted only in the public sector: a simulation study
Cohen T, Hedt BL, Pagano M. Estimating the magnitude and direction of bias in tuberculosis drug resistance surveys conducted only in the public sector: a simulation study. BMC Public Health 2010, 10: 355. PMID: 20565947, PMCID: PMC2898828, DOI: 10.1186/1471-2458-10-355.Peer-Reviewed Original ResearchNegative Controls
Lipsitch M, Tchetgen E, Cohen T. Negative Controls. Epidemiology 2010, 21: 383-388. PMID: 20335814, PMCID: PMC3053408, DOI: 10.1097/ede.0b013e3181d61eeb.Peer-Reviewed Original Research
2008
Challenges in Estimating the Total Burden of Drug-resistant Tuberculosis
Cohen T, Colijn C, Wright A, Zignol M, Pym A, Murray M. Challenges in Estimating the Total Burden of Drug-resistant Tuberculosis. American Journal Of Respiratory And Critical Care Medicine 2008, 177: 1302-1306. PMID: 18369201, PMCID: PMC2720088, DOI: 10.1164/rccm.200801-175pp.Peer-Reviewed Original ResearchConceptsDrug-resistant tuberculosisDrug resistance surveillanceHIV/TB coinfectionAnti-Tuberculosis Drug Resistance SurveillanceResistance surveillanceSentinel site surveillanceBurden of tuberculosisMultidrug-resistant diseaseMultidrug-resistant tuberculosisTB control programsTB coinfectionTB casesHigh burdenMethodologic obstaclesSurveillance studyNew casesTotal burdenTuberculosisLaboratory capacityBurdenSurveillanceControl programsDiagnostic technologiesRecent recognitionTrue extent