Clothier H J, Vu T, Sundararajan V, Andrews R M, Counahan M, Tallis G F, Lambert S B
Communicable Diseases Section, Rural and Regional Health and Aged Care Services Division, Department of Human Services, Melbourne, Victoria, Australia.
Epidemiol Infect. 2008 Feb;136(2):225-31. doi: 10.1017/S0950268807008187. Epub 2007 Mar 15.
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.
侵袭性肺炎球菌病（IPD）通报用于监测IPD疫苗接种计划。我们对澳大利亚维多利亚州的IPD通报与住院数据进行了连续确定性数据关联，以确定所有确诊病例是否均被报告。计算了每个相关住院ICD-10-AM编码中可与通报病例关联的比例。计算并比较了通报病例和未通报病例的总体及特定年龄年发病率。利用数据关联结果和双源捕获-再捕获方法估计总发病率。维多利亚州IPD监测的头两年至少遗漏了六分之一的实验室确诊IPD病例。使用捕获-再捕获方法时，估计的IPD年发病率从9.0/10万增至10.7/10万，甚至更高，达到11.5/10万，特定年龄发病率在2岁以下儿童中可能高达90.0/10万。需要采取策略来改善住院IPD病例的通报和编码。
