title: [Comparative study on electronic sphygmomanometer and mercury sphygmomanometer among adults in the field study].
abstract: OBJECTIVE
  To compare the electronic sphygmomanometer with mercury sphygmomanometer on measuring the average blood pressure, prevalence of hypertension in a same population. To set up a numerical relationship between two blood pressure value of the two devices.
  
  
  METHODS
  544 adults of ≥ 18 years old were from 6 neighborhood of Hunan Province. OMRON HEM-907 and mercury sphygmomanometer were used to test the difference. The blood pressure value of mercury sphygmomanometer was gold standard. The difference of systolic pressure and diastolic pressure of two devices was tested using paired t test and Bland-Altman analysis. Chi-square test was used to analyze the two prevalence of hypertension among the same population. The equation of linear regression was established using the value of blood pressure of two devices.
  
  
  RESULTS
  Paired t test showed the statistical difference on the systolic pressure and diastolic pressure of two devices (P < 0.0001). Chi-square test presented a higher prevalence of hypertension by using the electronic sphygmomanometer (P < 0.0001). Bland-Altman analysis showed mercury sphygmomanometer couldn't be simply replaced by electronic sphygmomanometer. The two independent equation of linear regression was calculated on systolic pressure and diastolic pressure.
  
  
  CONCLUSIONS
  The difference still existed when using the electronic sphygmomanometer and mercury sphygmomanometer at a large scale population. It's important to conduct the comparative study on electronic sphygmomanometer and mercury sphygmomanometer.
authors.forename: Dongmei
authors.initials: D
authors.lastname: Yu
authors.forename: Donghua
authors.initials: D
authors.lastname: Li
authors.forename: Qiya
authors.initials: Q
authors.lastname: Guo
authors.forename: Wentao
authors.initials: W
authors.lastname: Yu
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Xu
authors.forename: Liyun
authors.initials: L
authors.lastname: Zhao
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure; D001795:Blood Pressure Determination / Q000295:instrumentation* / Q000592:standards; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000453:epidemiology; D008297:Male; D008628:Mercury / Q000009:adverse effects; D008875:Middle Aged; D015995:Prevalence; D019722:Sphygmomanometers / Q000592:standards*; D055815:Young Adult
chemical_list: D008628:Mercury