Journal article

Invasive pneumococcal disease in Victoria: a better measurement of the true incidence

HJ Clothier, T Vu, V Sundararajan, RM Andrews, M Counahan, GF Tallis, SB Lambert



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 o..

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Funding Acknowledgements

We gratefully acknowledge the health information units of each admitting hospital for their assistance in confirming the diagnosis of IPD. At the time of this study Hazel Clothier was a Masters of Applied Epidemiology Scholar at the National Centre for Epidemiology and Population Health, Australian National University. Her scholarship for this programme was provided by the Australian Commonwealth Department of Health and Ageing.