具有相似人口统计学特征的消费者之间存在实质性差异。
There are substantial differences among consumers with similar demographic characteristics.
对各组之间的临床特征和社会人口统计学特征进行了比较。
Clinical and sociodemographic characteristics were compared between the groups.
结果两组之间的基线人口统计学特征和临床特征非常匹配。
RESULTS Base-line demographic and clinical characteristics were well matched between the two groups.
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