Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Bayesian inference of hospital-acquired infections and control measures given imperfect surveillance data.
AU - Pettitt, Anthony
AU - Forrester, M.
AU - Gibson, G.
N1 - RAE_import_type : Journal article RAE_uoa_type : Statistics and Operational Research
PY - 2007/4
Y1 - 2007/4
N2 - This paper describes a stochastic epidemic model developed to infer transmission rates of asymptomatic communicable pathogens within a hospital ward. Inference is complicated by partial observation of the epidemic process and dependencies within the data. The epidemic process of nosocomial communicable pathogens can be partially observed by routine swabs testing for the presence of the pathogen. False-negative swab results must be accounted for and make it difficult to ascertain the number of patients who were colonized. Reversible jump Markov chain Monte Carlo methods are used within a Bayesian framework to make inferences about the colonization rates and unknown colonization times. The methods are applied to routinely collected data concerning methicillin-resistant Staphylococcus Aureus in an intensive care unit to estimate the effectiveness of isolation on reducing transmission of the bacterium.
AB - This paper describes a stochastic epidemic model developed to infer transmission rates of asymptomatic communicable pathogens within a hospital ward. Inference is complicated by partial observation of the epidemic process and dependencies within the data. The epidemic process of nosocomial communicable pathogens can be partially observed by routine swabs testing for the presence of the pathogen. False-negative swab results must be accounted for and make it difficult to ascertain the number of patients who were colonized. Reversible jump Markov chain Monte Carlo methods are used within a Bayesian framework to make inferences about the colonization rates and unknown colonization times. The methods are applied to routinely collected data concerning methicillin-resistant Staphylococcus Aureus in an intensive care unit to estimate the effectiveness of isolation on reducing transmission of the bacterium.
KW - Bayesian inference
KW - False negatives
KW - Imperfect detectability
KW - Infectious diseases
KW - Markov chain Monte Carlo methods
KW - MRSA
KW - Reversible jump methods
KW - Screening
KW - Sensitivity
KW - Staphylococcus
KW - Stochastic epidemic models
U2 - 10.1093/biostatistics/kxl017
DO - 10.1093/biostatistics/kxl017
M3 - Journal article
VL - 8
SP - 383
EP - 401
JO - Biostatistics
JF - Biostatistics
SN - 1468-4357
IS - 2
ER -