The analysis of spearman rank correlation showed that there were correlations among risk behaviors.
等级相关分析表明：多种不良行为之间存在相关关系。
Data were analyzed by rank sum test and Spearman correlation test.
资料采用秩和检验和等级相关分析的统计学处理方法。
Data were analyzed by rank sum test and Spearman correlation test.
资料采用秩和检验和等级相关分析的统计学处理方法。
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