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Health care facilities routinely track their infection rates according to the guidelines issued by the Joint Commission.<ref>{{cite web | title= Basic Statistical Data Used in Acute Care Facilities | publisher = JB Learning | url = http://www.jblearning.com/samples/0763750344/45561_CH01.pdf | accessdate = 2017-01-09  }}</ref> The healthcare-associated infection (HAI) rates measure infection of patients in a particular hospital. This allows rates to compared with other hospitals. These infections can often be prevented when healthcare facilities follow guidelines for safe care. To get payment from Medicare, hospitals are required to report data about some infections to the Centers for Disease Control and Prevention's (CDC's) National Healthcare Safety Network (NHSN). Hospitals currently submit information on central line-associated bloodstream infections (CLABSIs), catheter-associated urinary tract infections (CAUTIs), surgical site infections (SSIs), MRSA Bacteremia, and C. difficile laboratory-identified events. The public reporting of these data is an effort by the Department of Health and Human Services.<ref>{{cite web | title = Healthcare-Associated Infections (HAI) data | publisher = Medicare.gov| url = https://www.medicare.gov/hospitalcompare/Data/Healthcare-Associated-Infections.html | accessdate = 2017-01-09  }}</ref>

Health care facilities routinely track their infection rates according to the guidelines issued by the Joint Commission.<ref>{{cite web | title= Basic Statistical Data Used in Acute Care Facilities | publisher = JB Learning | url = http://www.jblearning.com/samples/0763750344/45561_CH01.pdf | accessdate = 2017-01-09  }}</ref> The healthcare-associated infection (HAI) rates measure infection of patients in a particular hospital. This allows rates to compared with other hospitals. These infections can often be prevented when healthcare facilities follow guidelines for safe care. To get payment from Medicare, hospitals are required to report data about some infections to the Centers for Disease Control and Prevention's (CDC's) National Healthcare Safety Network (NHSN). Hospitals currently submit information on central line-associated bloodstream infections (CLABSIs), catheter-associated urinary tract infections (CAUTIs), surgical site infections (SSIs), MRSA Bacteremia, and C. difficile laboratory-identified events. The public reporting of these data is an effort by the Department of Health and Human Services.<ref>{{cite web | title = Healthcare-Associated Infections (HAI) data | publisher = Medicare.gov| url = https://www.medicare.gov/hospitalcompare/Data/Healthcare-Associated-Infections.html | accessdate = 2017-01-09  }}</ref>

卫生保健机构，根据联合委员会发布的准则，定期追踪他们负责跟踪的感染率<ref>{{cite web | title= Basic Statistical Data Used in Acute Care Facilities | publisher = JB Learning | url = http://www.jblearning.com/samples/0763750344/45561_CH01.pdf | accessdate = 2017-01-09  }}</ref>。医疗机构感染率（HAI），用于衡量特定医院中患者的感染情况。 这样，可以将感染率与其他医院对比。当医疗机构遵循安全护理指南时，通常可以预防这些感染。想要从卫生管理部门获得拨款，医院必须向（美国）疾病预防控制中心（CDC）下属的国家医疗安全网络（NHSN）报告某些感染的数据。医院目前提交的信息包括：中央静脉导管相关性血流感染（CLABSI），导管相关性尿路感染（CAUTI），手术部位感染（SSI），耐甲氧西林金黄色葡萄球菌败血症，以及实验室难以鉴定的事件。这些数据的公开报告，是卫生与公众服务部努力实现的工作<ref>{{cite web | title = Healthcare-Associated Infections (HAI) data | publisher = Medicare.gov| url = https://www.medicare.gov/hospitalcompare/Data/Healthcare-Associated-Infections.html | accessdate = 2017-01-09  }}</ref>。

卫生保健机构，根据联合委员会发布的准则，定期追踪他们负责跟踪的感染率<ref>{{cite web | title= Basic Statistical Data Used in Acute Care Facilities | publisher = JB Learning | url = http://www.jblearning.com/samples/0763750344/45561_CH01.pdf | accessdate = 2017-01-09  }}</ref>。医疗机构感染率（HAI），用于衡量特定医院中患者的感染情况。 这样，可以将感染率与其他医院对比。当医疗机构遵循安全护理指南时，通常可以预防这些感染。想要从卫生管理部门获得拨款，医院必须向（美国）疾病预防控制中心（CDC）下属的国家医疗安全网络（NHSN）报告某些感染的数据。医院目前提交的信息包括：中央静脉导管相关性血流感染（CLABSI），导管相关性尿路感染（CAUTI），手术部位感染（SSI），耐甲氧西林金黄色葡萄球菌败血症，以及实验室难以鉴定的事件。这些数据的公开报告，是卫生与公众服务部努力实现的工作<ref>{{cite web | title = Healthcare-Associated Infections (HAI) data | publisher = Medicare.gov| url = https://www.medicare.gov/hospitalcompare/Data/Healthcare-Associated-Infections.html | accessdate = 2017-01-09  }}</ref>。

For meaningful comparisons of infection rates, populations must be very similar between the two or more assessments. However, a problem with mean rates is that they cannot reflect differences in risk between populations.<ref>{{cite web | title= NHSN Standardized Infection Ratio |url = https://www.cdc.gov/nhsn/pdfs/ps-analysis-resources/nhsn-sir-guide.pdf | accessdate = 2017-01-09 | date= December 2016 }}</ref>

For meaningful comparisons of infection rates, populations must be very similar between the two or more assessments. However, a problem with mean rates is that they cannot reflect differences in risk between populations.<ref>{{cite web | title= NHSN Standardized Infection Ratio |url = https://www.cdc.gov/nhsn/pdfs/ps-analysis-resources/nhsn-sir-guide.pdf | accessdate = 2017-01-09 | date= December 2016 }}</ref>

为了有意义地比较感染率，两次或更多次评估之间的人群必须非常相似。然而，有一个问题是，平均感染率，无法反映不同人群之间的风险差异<ref>{{cite web | title= NHSN Standardized Infection Ratio |url = https://www.cdc.gov/nhsn/pdfs/ps-analysis-resources/nhsn-sir-guide.pdf | accessdate = 2017-01-09 | date= December 2016 }}</ref>。

为了有意义地比较感染率，两次或更多次评估之间的人群必须非常相似。然而，有一个问题是，平均感染率，无法反映不同人群之间的风险差异<ref>{{cite web | title= NHSN Standardized Infection Ratio |url = https://www.cdc.gov/nhsn/pdfs/ps-analysis-resources/nhsn-sir-guide.pdf | accessdate = 2017-01-09 | date= December 2016 }}</ref>。