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.
等级相关分析表明：多种不良行为之间存在相关关系。
The analysis of spearman rank correlation showed that there were correlations among risk behaviors.
CEA阳性强度等级相关分析也显示CEA含量与胃癌及萎缩性胃炎病变程度是极明显的正相关（R＞0．7）。
The CEA content was positively correlated with the lesion degress of atrophic gastritis or gastric cancer (R> 0. 7).
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