(1)增加或减少3倍：increase by 3 fold (times). a 3-fold increase
(2)A 是 B的3倍：A is 3 fold (times) as…as B. A is 3 fold (times) B
5.结果的统计学意义
(1)明显不同(significant difference)
(2)很明显不同(very/highly significant difference)
(3)区别不明显( insignificant difference)
(4)无区别( nonsignificant difference/no difference)
6.统计学意义常用句型
(1)There was/is significant difference in…between A and B
(2)The difference in …between A and B was/is significant
(3)A was/is significant difference from B in …
(4)No significant difference was found / observed / noted in …between A and B
“in” 表示区分的性质或内容
举例：
①There were no significant difference between treatment groups in symptoms and lung function (P>0.05).
②Significant difference were not noted in the level of HDL cholesterol, and LDL peak particle diameter before and after treatment.
结论部分：是作者发表观点和见解，给读者的精髓部分
1.归纳性说明研究结果或发现
2.结论性说明结果的可能原因、机理或意义
3.前瞻性说明未解决的问题
一、结论部分时态
1.过去时
(1)涉及本研究的内容
(2)涉及他人研究过程的内容
(3)作者认为只适用于本研究环境和条件的结论
2.现在时
(1)指示性说明
(2)普遍接受的思想、理论或结论
(3)作者认为本研究结论具有普遍意义
(4)前瞻性说明
举例：Our findings indicate that hepatitis C is a progressive disease [指示性说明-现在时]，but only a few died during the average 20.4 years after the initiation of injection drug use [本试验过程中发生的事-过去时]. Antiviral treatment to eradicate the virus and halt the progression of diseases is indicated in this group of patients [作者认为具有普遍意义的结论-现在时].
二、 结论部分常用句型
1.结果提示…：These results suggest that…
举例：These data confirm the presence of at least two major HCV genotypes in Nigeria.
2.结果支持或反对某种观点：These results support the idea that…;These results fail to support the idea that…
举例：These results do not support the idea that treatment to lower cholesterol concentration cause mood disturbance.
3.表示观点的确定或不确定性：There is no evidence that…;It is likely/unlikely that …
举例：There is no evidence that NIDDM produce any change in bone metabolism or mass.
4.具有…意义：Be of great (some/little/no) clinical significance in…to …
举例：The detection of p53 gene is of great clinical significance in tumor diagnosis.
5.前瞻性说明：…remain to be further studied;It is remains to be proved that …
举例：However, the relation of insulin resistance to hypertension remains to be further studied.
6.插入语：This is the first case of pancreas divisum.
举例：This is the first case, to our knowledge, of pancreas divisum.
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