Statistical significant difference 统计上的显着差异
Result: There was no significant statistical difference in the degree of improvement among 3 kinds of treatments.
结果：三组治疗后症状均有改善，但症状改善的幅度并无显著性差异。
Whether significant statistical difference in age and the course of disease over the distribution of the 11 common factors, there is remains to be further studied.
患者的年龄及病史在11个公因子上的分布是否有差异尚有待进一步研究。
The blood lead level of children having bad habits of diet and behavior was higher than that of not having bad habits, but there had no significant statistical difference(both P>0.05).
有不良饮食、行为习惯的儿童血铅水平高于无不良习惯的儿童血铅水平，但差异无统计学意义（均P>0.05）。
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