TY - JOUR
T1 - Invasive pneumococcal disease in Victoria
T2 - A better measurement of the true incidence
AU - Clothier, Hazel J.
AU - Vu, T.
AU - Sundararajan, V.
AU - Andrews, R. M.
AU - Counahan, M.
AU - Tallis, G. F.
AU - Lambert, S. B.
PY - 2008/2
Y1 - 2008/2
N2 - Invasive pneumococcal disease (IPD) notifications are used to monitor IPD vaccination programmes. We conducted sequential deterministic data-linkage between IPD notifications and hospitalization data in Victoria, Australia, in order to determine whether all diagnosed cases were being reported. The proportion of each relevant hospital admission ICD-10-AM code that could be linked to notified cases was calculated. Total and age-specific annual rates were calculated and compared for notified and non-notified cases. Total incidence was estimated using data-linkage results and application of a two-source capture-recapture method. The first 2 years of IPD surveillance in Victoria missed at least one-sixth of laboratory-confirmed IPD cases. Estimated annual IPD rate increased from 9.0 to 10.7/100 000 and rose even higher, to 11.5/ 100 000, with age-specific rates possibly reaching 90.0/100 000 children aged <2 years, when using capture-recapture. Strategies to improve notification and coding of hospitalized cases of IPD are required.
AB - Invasive pneumococcal disease (IPD) notifications are used to monitor IPD vaccination programmes. We conducted sequential deterministic data-linkage between IPD notifications and hospitalization data in Victoria, Australia, in order to determine whether all diagnosed cases were being reported. The proportion of each relevant hospital admission ICD-10-AM code that could be linked to notified cases was calculated. Total and age-specific annual rates were calculated and compared for notified and non-notified cases. Total incidence was estimated using data-linkage results and application of a two-source capture-recapture method. The first 2 years of IPD surveillance in Victoria missed at least one-sixth of laboratory-confirmed IPD cases. Estimated annual IPD rate increased from 9.0 to 10.7/100 000 and rose even higher, to 11.5/ 100 000, with age-specific rates possibly reaching 90.0/100 000 children aged <2 years, when using capture-recapture. Strategies to improve notification and coding of hospitalized cases of IPD are required.
UR - http://www.scopus.com/inward/record.url?scp=38049159882&partnerID=8YFLogxK
U2 - 10.1017/S0950268807008187
DO - 10.1017/S0950268807008187
M3 - Article
SN - 0950-2688
VL - 136
SP - 225
EP - 231
JO - Epidemiology and Infection
JF - Epidemiology and Infection
IS - 2
ER -