MethodUnmatched case-control study was conducted based on the attempted suicide monitoring and reporting system.
方法采用以自杀未遂监测和报告系统为基础的非匹配设计的病例对照研究方法。
参考来源 - 广西某少数民族农村地区自杀未遂者家庭亲密度和适应性研究
病例对照研究
病例对照研究
病例对照调查
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Case-control study
abstract:A case-control study is a type of study design used widely, often in epidemiology. It is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.
First, it is a retrospective case-control study and is therefore susceptible to reporting bias, meaning that people with ALS may report their coffee consumption differently from controls.