双变量分析目标是确定两个变量之间的相关性，测量它们之间的预测或解释的能力。双变量统计分析技术包括：相关分析和回归分析。
双变量分析用来评估高病死率的风险因素以及确定从出疹到病死的时间。
Bivariate analyses were performed to assess the risk factors for a high CFR and determine the time from rash onset until death.
描述统计和双变量分析用来描述伤害类型，而多重变量分析用来确定严重伤害的相关因素。
Descriptive statistics and bivariate analysis were used to characterize injury patterns and multivariate analysis was used to identify factors associated with severe injury.
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