Difference between the two groups has statistical significance.
两组比较差异有统计学意义。
The difference of economic status structure has statistical significance.
四县之间的差异有统计学意义。
It has statistical significance between incidence of high HCY and difference of all types of CHD.
高hcy的发生率与各型冠心病的差异有统计学意义。
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