Titre : | Estimating influenza vaccine effectiveness using routinely collected laboratory data. (2010) |
Auteurs : | D.M. FLEMING ; ANDREWS (N.J.) : GBR. Statistics division. Health Protection Agency Centre for Infections. London. ; A. BERMINGHAM ; ELLIOT (A.J.) : GBR. Real-time Syndromic Surveillance Team. Health Protection Agency West Midlands. Birmingham. ; J.S. ELLIS ; MILLER (E.) : GBR. Immunisation division. Health Protection Agency Centre for Infections. London. ; P. SEBASTIANPILLAI ; ZAMBON (M.) : GBR. Health Protection Agency Centre for Infections. London. ; Influenza virus reference laboratory. Health Protection Agency Centre for Infections. London. GBR ; Royal College of General Practitioners Research and Surveillance Centre. Birmingham. GBR |
Type de document : | Article |
Dans : | Journal of epidemiology and community health (vol. 64, n° 12, 2010) |
Pagination : | 1062-1067 |
Langues: | Anglais |
Mots-clés : | Estimation ; Grippe ; Vaccin ; Prévention santé ; Efficacité ; Laboratoire ; Virose ; Infection |
Résumé : | [BDSP. Notice produite par INIST-CNRS 7nCR0xGD. Diffusion soumise à autorisation]. Background Estimation of influenza vaccine effectiveness (V/E) is needed early during influenza outbreaks in order to optimise management of influenza-a need which will be even greater in a pandemic situation. Objective Examine the potential of routinely collected virological surveillance data to generate estimates of V/E in real-time during winter seasons. Methods Integrated clinical and virological community influenza surveillance data collected over three winters 2004/5-2006/7 were used. We calculated the odds of vaccination in persons that were influenza-virus-positive and the odds in those that were negative and provided a crude estimate of V/E. Logistic regression was used to obtain V/E estimates adjusted for confounding variables such as age. Results Multivariable analysis suggested that adjustments to the crude V/E estimate were necessary for patient age and month of sampling. The annual adjusted V/E was 2005/6,67% (95% CI 41% to 82%) ; 2006/7 55% (26% to 73%) and 2007/8 67% (41% to 82%). The adjusted V/E in persons |