univariate analysis的用法和样例：
例句
- Univariate analysis showed presence and number of MBs, short duration of education, and severe white matter hyperintensities as significantly associated with subnormal scores.
单变量分析发现脑微出血的出现和数量，低教育程度及白质高信号的程度与简易精神状况检查低分值有显著相关性。 - Multivariate analysis indicated that micrometastases were an independent progrostic factor.
多变量分析表明淋巴结微转移是独立的预后因素。
