“流行病学实验研究”的概念、定义、翻译、参考文献-科学参考

单词	流行病学实验研究
释义	流行病学实验研究 Encyclopedia 医学流行病学实验研究释 epidemiological experimental study流行病学实验研究将研究人群（病人或正常人）随机分为实验组和对照组，研究者对实验组人群施加或除去某种干预措施后，随访观察一段时间并比较两组人群疾病或健康状态的改变，对比分析实验组与对照组之间结局的差别，以验证研究假设和考核干预措施效果的一种实验方法。又称实验流行病学、干预研究等。
随便看	characteristic class characteristic class of a fiber bundle characteristic class of a manifold characteristic cohomology class characteristic commercial street(district) characteristic concentration characteristic condition characteristic cone characteristic congruence characteristic conoid characteristic constant characteristic coordinate Characteristic Cultural Industries characteristic curve characteristic cycle characteristic database characteristic derivative characteristic determinant characteristic differential equation characteristic differentiation characteristic direction characteristic dyadic characteristic (eigen) value of a matrix characteristic element characteristic energy loss spectrum

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