采用病例对照设计，选择184例男性矽肺病人为病例，111例男性无矽肺矿工为对照。
A case control study was conducted. 184 male silicosis cases and 111 male controls were collected.
方法：采用流行病学病例对照设计，通过对875例高血压病患者和654例非高血压病人的问卷调查，并对其进行体质分类。
Method: Designed according to epidemiological case comparison, through a survey of 875 hypertensive patients and 654 non - hypertensive people, and by constitution analysis.
结论病例同胞对照设计使用患者同胞作为对照，避免了人群分层现象，可以用来检测基因与疾病之间的关联或连锁。
Conclusion Case-sibling control design might avoid population stratification by using siblings as controls thus might be used to test association and linkage between genes and disease.
结论病例同胞对照设计使用患者同胞作为对照，避免了人群分层现象，可以用来检测基因与疾病之间的关联或连锁。
Conclusion Case-sibling control design might avoid population stratification by using siblings as controls thus might be used to test association and linkage between genes and disease.
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