常用家庭电子血压计示值重复性和准确度的研究

目的:对常用家庭电子血压计示值重复性和准确度进行再评估.方法:选择中国人民解放军空军特色医学中心高血压和心内科门诊患者140例,以水银血压计测量3次的血压平均值为真实血压水平,依据《JJG692-2010无创自动测量血压计检定规程》和听诊法对患者使用的140台家庭电子血压计进行示值重复性和准确度再评估.结果:140台家...

Research on Repeatability and Accuracy of Indication Value of Commonly Used Household Electronic Sphygmomanometer

Objectives:To evaluate the repeatability and accuracy of indication value of commonly used household electronic sphygmomanometer.Methods:140 outpatients form hypertension and cardiology of Air Force Medical Center were selected.The average blood pressure was measured 3 times with a mercury sphygmomanometer and the mean value was used as the true blood pressure level of these participants.According to"JJG692-2010 Non-invasive Automatic Measuring Sphygmomanometer Verification Regulations"and the auscultation method,the repeatability and accuracy of the 140 household electronic sphygmomanometers used by patients were evaluated.Results:The repeatability of systolic and diastolic blood pressure measured by these 140 household electronic sphygmomanometers met the requirements(≤5 mmHg,1 mmHg=0.133 kPa).The percentages of qualified repeatability was 99.29% and 100% for systolic and diastolic blood pressure,and the overall rate was 99.29%.The blood pressure of 140 patients was measured 3 times with an electronic sphygmomanometer and a mercury sphygmomanometer respectively,and the achieved average value from these two methods were compared.The number of patients with absolute difference of systolic blood pressure 0-5 mmHg,6-10 mmHg,and>10 mmHg was 86 cases(61.43%),34 cases(24.29%),and 20 cases(14.28%)respectively.There were 85 cases(60.71%),37 cases(26.43%),and 18 cases(12.86%)with absolute difference of diastolic blood pressure between 0-5 mmHg,6-10 mmHg,and>10 mmHg respectively.There were 50 cases(35.71%)and 104 cases(74.29%)with the absolute difference of systolic and diastolic blood pressure ranged between≤5 mmHg and≤10 mmHg.The mean absolute difference of the systolic and diastolic blood pressure between the two methods was 5.7190 mmHg and 5.7738 mmHg,respectively,which was significantly higher than the allowed error range(within the average deviation±5 mmHg,all P<0.05).According to the definition of"Chinese Guidelines for Prevention and Treatment of Hypertension in 2018",there were 31 patients(22.14%)with hypertension,57 patients(40.71%)with high normal value,and 52 patients(37.14%)with normal blood pressure.Among the three groups of patients,the percent of absolute difference of the systolic and diastolic blood pressure measured by the two sphygmomanometers less than 5 mmHg was 29.03%,38.60%,36.54%,respectively,and percent of the absolute difference of the systolic and diastolic blood pressure less than or equal to 10 mmHg was 58.06%,80.70%,73.08%,respectively.Conclusions:Repeatability of the commonly used household electronic sphygmomanometers is satisfactory and the measurement accuracy of these apparatus still needs to be improved.Taking the average of three consecutive measurements can improve the accuracy of measuring blood pressure with the electronic sphygmomanometer.