ble ? Bias : describe any efforts to address potential sources of bias ?总结: (a) 定义(某个要检测指标或者随访的结果),诊断标准(b) 防止偏倚的努力(病例纳入和排除标准;盲法;根据混杂因素进行分层分析或者是配对设计) 报告规范--方法?方法中各类观察性研究的共同规范? Study size: Explain how the study size was arrived at ? Quantitative variables: Explain how quantitative variables were handled in the analyses. If applicable, describe which groupings were chosen and why ?总结: (a) 样本量: 病例收集过程(b) 定量指标的定量;如何根据定量指标分组,这样分组的依据是什么? 报告规范--方法?方法中各类观察性研究的不同规范---研究对象报告规范--方法?方法中各类观察性研究的不同规范---统计方法报告规范--方法?方法中各类观察性研究的不同规范---数据来源和测量? For each variable of interest, give sources of data and details of methods of assessment (measurement). Describe comparability of assessment methods if there is more than one group ?队列研究和横断面研究:分别给出暴露和非暴露组的信息?病例对照研究:分别给出病例组和对照组的信息
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