TY - JOUR KW - influenza A KW - Adolescent KW - Adult KW - Age Factors KW - Aged KW - Child KW - Child KW - Preschool KW - Continental Population Groups KW - Electronic Health Records KW - Female KW - Great Britain KW - Healthcare Disparities KW - Hospitals KW - Teaching KW - Humans KW - Infant KW - Influenza A Virus KW - H5N1 Subtype KW - Influenza KW - Human KW - Length of Stay KW - Male KW - Medical Record Linkage KW - Middle Aged KW - Pandemics KW - Socioeconomic Factors KW - Young Adult N2 - Effective use of data linkage is becoming an increasingly important focus in the new healthcare system in England. We linked data from the results of a multiplex PCR assay for respiratory viruses for a population of 230 inpatients at a UK teaching hospital with their patient administrative system records in order to compare the mortality and length of stay of patients who tested positive for influenza A(H1N1)pdm09 with those positive for another influenza A virus. The results indicated a reduced risk of death among influenza A(H1N1)pdm09 patients compared to other influenza A strains, with an adjusted risk ratio of 0·25 (95% confidence interval 0·08-0·75, P = 0·01), while no significant differences were found between the lengths of stay in the hospital for these two groups. Further development of such methods to link hospital data in a routine fashion could provide a rapid means of gaining epidemiological insights into emerging infectious diseases. ID - discovery1471239 TI - Use of linked electronic health records to assess mortality and length of stay associated with pandemic influenza A(H1N1)pdm09 at a UK teaching hospital Y1 - 2015/04// AV - public EP - 1128 JF - Epidemiol Infect A1 - Smith, C A1 - Curran, MD A1 - Roddick, I A1 - Reacher, M UR - http://dx.doi.org/10.1017/S0950268814002076 SN - 1469-4409 IS - 6 N1 - © Cambridge University Press 2014. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. SP - 1125 VL - 143 ER -