Analysis Of The Influencing Factors Of And The Normal Reference Value Of Cardio-ankle Vascular Index In People With Different Age Ranges

Objective1. To explore the relevant factors affecting the cardio-ankle vascular index.2.To explore the normal reference value of cardio-ankle vascular index in people withdifferent age ranges.Methods1. we collected the populations who took the tests of the cardio-ankle vascular index,fasting blood glucose, lipids and renal function in Physical Examination Center of the FirstAffiliated Hospital of Jinan University from August2010to August2012,and according to theinspection results, by using spss13.0statistical software, we applied to single-factor linearcorrelation, the multiple linear related and logistic regression to identify the influencing factorsof cardio-ankle vascular index.2. After excluding the important factor affecting CAVI——renal insufficiency, we dividedthe remaining populations by age into seven groups from small to large, by using one-wayANOVA to compare CAVI mean and standard deviation in each groups. Between any twogroups SNK-q test was used to compare with±1.96S represents95%of the normalreference range.Results1. Cardio-ankle vascular index,age, systolic blood pressure, diastolic blood pressure, pulsepressure, blood glucose, uric acid, creatinine, urea, total cholesterol and triglycerides werepositively correlated, was negatively correlated to heart rate and body weight. Age, body weight,systolic blood pressure, heart rate, serum creatinine and blood sugar were the impact factors ofcardio-ankle vascular index after multivariate linear regression analysis, which werestatistically significant.2. After Chi-square test for single factor,we found that the CAVI abnormal differencebetween the high age, high blood pressure, high cholesterol, diabetes and renal insufficiencywith lower age, normal population. Further line of logistic regression analysis showed that, abnormal CAVI significantly was higher risk with Age increased renal dysfunction.3. After excluding renal insufficiency from the crowd, we can not prove that7differentages crowd CAVI identical. CAVI gradually increased with age. The other groups werestatistically significant differences except for group2with group3and group3with group4.Conclusions1. Age is the main factors affecting the cardio-ankle vascular index. Cardio-ankle vascularindex is a significant positive correlation with age. The correlation coefficient is0.539.With thegrowth of the age, CAVI value will be gradually increased. Weight, systolic blood pressure,heart rate, serum creatinine and blood sugar have some influences on CAVI, but the influencesare very small.2. The chance of CAVI abnormal gradually increases with age. Old age is a major riskfactor for CAVI; For Renal dysfunction, the risk of abnormal heart ankle vascular index issignificantly increased compared with normal renal function.3. the normal reference values of CAVI are different in seven age groups of people andincrease with the rise of age. The people above71years old may be suffering fromarteriosclerosis.