■安大略省的围产期数据有两个主要数据源,加拿大:出生的BIS和CIHI-DAD。这些数据库用于围产期健康监测和研究,并指导医疗保健相关决策。
■我们的主要目标是检查BIS和CIHI-DAD之间的协议水平。我们的次要目标是在确定低风险出生(LRB)队列时确定数据源之间的差异并了解其含义。
我们进行了一项基于人群的队列研究,比较了2012年4月1日至2018年3月31日BIS和CIHI-DAD中所有可关联出生的特征和临床结局。我们排除了院外分娩,那些医疗号码无效的人,非安大略省居民和胎龄<20周。我们根据每个数据源比较了队列中符合省级LRB定义标准的部分,并比较了组间的临床结果。
■在研究期间,779,979名符合条件的婴儿可以在两个数据源之间链接。在应用LRB排除之后,BIS中有129,908例,CIHI-DAD中有136,184例。大多数排除标准几乎完美,实质性或适度的协议。非头表现和BMI≥40kg/m2(κ系数分别为0.409和0.256)的一致性是公平的。两个LRB队列之间的比较发现,剖宫产率(14.3%BIS对12.0%CIHI-DAD)和NICU入院率(8.7%BIS对7.5%CIHI-DAD)的差异,仅0.01%的差异ICU入院率。
■总的来说,我们发现BIS和CIHI-DAD之间有很高的一致性。在任一数据库中识别LRB队列可能是合适的,有了对收藏的适当理解的警告,某些结果的编码和定义。用于选择数据库的决定可以取决于哪些变量在特定分析中最重要。
UNASSIGNED: There are two main data sources for perinatal data in Ontario, Canada: the BORN BIS and CIHI-DAD. Such databases are used for perinatal health surveillance and research, and to guide health care related decisions.
UNASSIGNED: Our primary objective was to examine the level of agreement between the BIS and CIHI-DAD. Our secondary objectives were to identify the differences between the data sources when identifying a low-risk birth (LRB) cohort and to understand their implications.
UNASSIGNED: We conducted a population-based cohort study comparing characteristics and clinical outcomes of all linkable births in BIS and CIHI-DAD between 1st April 2012 and 31st March 2018. We excluded out-of-hospital births, those with invalid healthcare numbers, non-Ontario residents and gestational age <20 weeks. We compared the portion of the cohort that met the criteria of a provincial definition of LRB based on each data source and compared clinical outcomes between the groups.
UNASSIGNED: During the study period, 779,979 eligible births were linkable between the two data sources. After applying the LRB exclusions, there were 129,908 cases in the BIS and 136,184 cases in CIHI-DAD. Most exclusion criteria had almost perfect, substantial or moderate agreement. The agreement for non-cephalic presentation and BMI ≥ 40 kg/m2 (kappa coefficients 0.409 and 0.256, respectively) was fair. Comparison between the two LRB cohorts identified differences in the prevalence of cesarean (14.3% BIS versus 12.0% CIHI-DAD) and NICU admission (8.7% BIS versus 7.5% CIHI-DAD) and only 0.01% difference in the prevalence of ICU admission.
UNASSIGNED: Overall, we found high levels of agreement between the BIS and CIHI-DAD. Identifying a LRB cohort in either database may be appropriate, with the caveat of appropriate understanding of the collection, coding and definition of certain outcomes. The decision for selecting a database may depend on which variables are most important in a particular analysis.