生殖流行病学──第七讲多元分析与生存分析刘云嵘目前我国生殖健康领域临床研究和流行病学研究存在着两个突出的薄弱环节：一是研究设计，二是统计分析。如果研究设计有缺陷就犹如‘先天’不足，试图‘后天’通过统计分析来弥补是困难的。即使设计严谨，然而由于统计方法... Reproductive Epidemiology ─ ─ Chapter VII Multivariate Analysis and Survival Analysis Liu Yunrong There are two prominent weaknesses in clinical research and epidemiological research in the field of reproductive health in China at present: first, research design; second, statistical analysis. If the research design is flawed as ’inherent’ deficiencies, it is difficult to try ’acquired’ through statistical analysis. Even though the design is rigorous, due to the statistical method ...