发病率

We evaluated the impact of fetal echocardiography on the incidence of liveborn CHD.

本研究的目的是评估胎儿心脏超声检查对活产儿先天性心脏病发病率的影响。

ConclusionFetal echocardiography reduced significantly the incidence of liveborn CHD.

结论胎儿心脏超声检查显著降低了活产儿先天性心脏病的发病率。

OBJECTIVE: This study longitudinally described rates of posttraumatic stress disorder in two groups with different levels of severity of exposure to an earthquake in North China .

目的：此研究的目的是纵向描述两组不同程度暴露于中国北方地震中的受害者创伤后应激障碍的发病率。

Result:the incidence of AP went up year by year;(2)bile tract disease is the major reason,but hyperlipdemic AP should be attach importance to for its higher and higher incidence;(3)mean age of biliary AP is higher than alcohlolic and hyperlipdemic AP;(4)the difference of sex is significant in biliary AP and alcohlolic AP;(5)the incidence of local omplications is lower than alcohlolic and hyperlipdemic AP,but the difference is of no significance in view of systemic complications;(6)lungis of the most liability for dysfunction,and renal dysfunction is most closely related to death ;(7)ESS is associated with AP and related to the severity and prognosis .

结果表明：(1)急性胰腺炎发病率呈逐年上升趋势；(2)胆道疾病仍是急性胰腺炎的首要病因，高脂血症性胰腺炎明显增多，应受到重视；(3)胆源性胰腺炎患者年龄高于酒精性和高血脂性等其它原因的胰腺炎；(4)性别差异在胆源性、酒精性胰腺炎中显著；(5)胆源性胰腺炎出现局部并发症几率少于酒精性和高血脂性胰腺炎，而在全身并发症上无明显差异；(6)重症急性胰腺炎中，肺脏最易发生功能障碍，肾功能障碍与死亡关系最密切；(7)急性胰腺炎易伴发正常甲状腺病态综合症，并与其严重程度和预后相关。

The rate of take malarious is very high in the hot region.

他挥金如土。2。热带地区疟疾的发病率高。

Malarious is common in the tropic zone.

热带地区疟疾的发病率高。

BACKGROUND: Studies from Asia have suggested that zinc supplementation can reduce morbidity and mortality in children, but evidence from malarious populations in Africa has been inconsistent.

背景：从亚洲的研究中已经提议，锌补充治疗能降低儿童的发病率和死亡率，但是来自于非洲的疟疾人群的证据与此相矛盾。

BACKGROUND: Studies from Asia hae suggested that zinc supplementation can reduce morbidity and mortality in children, but eidence from malarious populations in Africa has been inconsistent.

背景：从亚洲的研究中已经提议，锌补充治疗能降低儿童的发病率和死亡率，但是来自于非洲的疟疾人群的证据与此相矛盾。

But the rate of mammitis will increase at the speed of 2％, at the same time, the number of daughters and sons of test bulls is not large enough for good accuracy for estimating test bull breeding value, so the breeding scheme in effect need to be improve.

C、现行的育种方案的育种成效不甚理想，世代间隔为5.42年，投入产出比为1∶11.50，但乳房炎发病率提高，公牛后裔测定的后代数低；现行方案还有较大的改进余地。

The authors found that the prealence of protrusio increased to approxi- mately 35.9% by the age of twenty years and then it plateaued; howeer, its presence did not correlate with osteoarthritic changes as measured with the Iowa hip score in patients more than forty years of age.

作者发现髋臼前突的发病率在20岁时增加到35.9%然后进入平台期，但其表现与骨关节炎改变并不成比例（IOWA髋指数，年龄大于40岁）；对有症状的患者来说，髋关节前突与髋部疼痛之间呈正相关关系，关节间隙宽度与髋前突间呈负相关关系，提示髋关节前突的力学因素对关节退变有一定作用，但可能不是主要因素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。