Baseline-proxy seroprevalence and cumulative incidence of infection by 2009 pandemic influenza A H1N1 virus (pH1N1/2009) according to age and to epidemic phase, CoPanFlu-RUN cohort, Reunion Island, 2009.

Data are numbers, percentages (95% confidence intervals) and ANOVA test P value for comparison of mean cumulative incidence proportions between pandemic phases, in each age groups. Distributions were estimated by non parametric cluster bootstrap technique with 1000 resamples of households. W30–31: early epidemic phase (baseline-proxy); W32–39: full development of the epidemic wave; W40–44: immediate post-epidemic phase; W45–52: late post-epidemic phase.*HIA titer: Hemagglutination inhibition assay titer.aBp (baseline-proxy) seroprevalence rates were estimated on weeks 30–31 in each age group.bCumulative incidence rates measured the raise between raw seroprevalence rates and age-specific baseline-proxy seroprevalence rate. In the group “All ages”, cumulative incidence rates were standardized according to age structure of the community.

本数据集涵盖各年龄组内大流行不同阶段平均累积发病比例比较的相关数据，包括数值、百分比（95%置信区间）及方差分析（Analysis of Variance, ANOVA）检验P值。数据分布通过非参数集群bootstrap重采样技术估算，采用1000次家庭重抽样。W30–31：疫情早期阶段（基线代理组）；W32–39：疫情流行波全面发展阶段；W40–44：疫情结束即刻阶段；W45–52：疫情结束后期阶段。*HIA滴度：血凝抑制试验（Hemagglutination Inhibition Assay, HIA）滴度。aBp（基线代理）血清阳性率基于各年龄组W30–31周的数据估算得出。b累积发病率指原始血清阳性率与分年龄组基线代理血清阳性率之间的增幅。在"全年龄组"中，累积发病率依据社区人口年龄结构进行了标准化处理。