目的界定正常人群肝脏硬度值参考范围及探讨年龄、性别对肝脏硬度值的影响。方法收集2012年10月1日^(-2)014年10月31日于中国石油天然气集团公司中心医院进行体检的健康人群1794例,经Fibro Scan进行肝脏硬度值(LSM)检测。因LSM的分布不...目的界定正常人群肝脏硬度值参考范围及探讨年龄、性别对肝脏硬度值的影响。方法收集2012年10月1日^(-2)014年10月31日于中国石油天然气集团公司中心医院进行体检的健康人群1794例,经Fibro Scan进行肝脏硬度值(LSM)检测。因LSM的分布不服从正态分布,采用Wilcoxon秩和检验比较不同性别组间LSM;采用Kruskal-Wallis检验比较不同年龄段间LSM,采用Spearman秩相关分析LSM与年龄的相关性;采用单侧百分位法制订性别、年龄段的正常参考值范围。结果其中1590例LSM测定成功有效,有效率为88.63%,107例因肝功能异常被剔除,经分析发现男性受试者LSM高于女性受试者,男女间比较LSM差异有统计学意义(Z=-4.980,P<0.001);不同年龄段间LSM差异亦有统计学意义(χ~2=16.983,P=0.001),并证实年龄与LSM呈正相关(r=0.087,P=0.001),参考范围(P90)估计:成人≤7.1 k Pa,女性≤7.0 k Pa,男性≤7.2 k Pa;按年龄划分20~29岁≤6.8 k Pa,30~44岁≤6.7 k Pa,45~59岁≤7.8 k Pa,60~74岁≤8.8 k Pa。结论 LSM受年龄、性别影响,在体检人群中应用时需根据年龄、性别参考相应的医学参考值范围。展开更多
AIM: The healthy ranges for serum alanine aminotransferase(ALT) levels are less well studied. The aim of this study was to define the upper limit of normal (ULN) for serum ALT levels, and to assess factors associated ...AIM: The healthy ranges for serum alanine aminotransferase(ALT) levels are less well studied. The aim of this study was to define the upper limit of normal (ULN) for serum ALT levels, and to assess factors associated with serum ALT activity in apparently healthy blood donors. METHODS: A total of 1 939 blood donors were included.ALT measurements were performed for all cases using the same laboratory method. Healthy ranges for ALT levels werecomputed from the population at the lowest risk for liver disease. Univariate and multivariate analyses were performed to evaluate associations between clinical factors and ALT levels.RESULTS: Serum ALT activity was independently associated with body mass index (BMI) and male gender, but not associated with age. Association of ALT with BMI was more prominent in males than in females. Upper limit of normal for non-overweight women (BMI of less than 25) was 34 U/L,and for non-overweight men was 40 U/L.CONCLUSION: Serum ALT is strongly associated with sex and BMI. The normal range of ALT should be defined for male and female separately.展开更多
文摘目的界定正常人群肝脏硬度值参考范围及探讨年龄、性别对肝脏硬度值的影响。方法收集2012年10月1日^(-2)014年10月31日于中国石油天然气集团公司中心医院进行体检的健康人群1794例,经Fibro Scan进行肝脏硬度值(LSM)检测。因LSM的分布不服从正态分布,采用Wilcoxon秩和检验比较不同性别组间LSM;采用Kruskal-Wallis检验比较不同年龄段间LSM,采用Spearman秩相关分析LSM与年龄的相关性;采用单侧百分位法制订性别、年龄段的正常参考值范围。结果其中1590例LSM测定成功有效,有效率为88.63%,107例因肝功能异常被剔除,经分析发现男性受试者LSM高于女性受试者,男女间比较LSM差异有统计学意义(Z=-4.980,P<0.001);不同年龄段间LSM差异亦有统计学意义(χ~2=16.983,P=0.001),并证实年龄与LSM呈正相关(r=0.087,P=0.001),参考范围(P90)估计:成人≤7.1 k Pa,女性≤7.0 k Pa,男性≤7.2 k Pa;按年龄划分20~29岁≤6.8 k Pa,30~44岁≤6.7 k Pa,45~59岁≤7.8 k Pa,60~74岁≤8.8 k Pa。结论 LSM受年龄、性别影响,在体检人群中应用时需根据年龄、性别参考相应的医学参考值范围。
文摘AIM: The healthy ranges for serum alanine aminotransferase(ALT) levels are less well studied. The aim of this study was to define the upper limit of normal (ULN) for serum ALT levels, and to assess factors associated with serum ALT activity in apparently healthy blood donors. METHODS: A total of 1 939 blood donors were included.ALT measurements were performed for all cases using the same laboratory method. Healthy ranges for ALT levels werecomputed from the population at the lowest risk for liver disease. Univariate and multivariate analyses were performed to evaluate associations between clinical factors and ALT levels.RESULTS: Serum ALT activity was independently associated with body mass index (BMI) and male gender, but not associated with age. Association of ALT with BMI was more prominent in males than in females. Upper limit of normal for non-overweight women (BMI of less than 25) was 34 U/L,and for non-overweight men was 40 U/L.CONCLUSION: Serum ALT is strongly associated with sex and BMI. The normal range of ALT should be defined for male and female separately.