title: Validation of the Microlife BP W200-1 wrist device for blood pressure measurement.
abstract: OBJECTIVE
  The objective of the study was to determine the accuracy of the BP W200-1 device for blood pressure measurement at the wrist developed by the Microlife Company. The BP W200-1 model features a 'Microlife Average Mode', which uses a 'weighted' average of a minimum of three consecutive blood pressure (BP) readings taken 15 s apart.
  
  
  METHODS
  Device evaluation was carried out using the International Protocol of the European Society of Hypertension. Monitor performance was assessed in relation to patients' sex, age, wrist circumference, and systolic (SBP) and diastolic blood pressures (DBP).
  
  
  RESULTS
  The BP W200-1 comfortably passed all three phases of the protocol for SBP and DBP. The device performed well in all ranges of SBP and DBP. Mean blood pressure differences for the BP W200-1 monitor were -1.2+/-4.5 mmHg for SBP and -0.2+/-3.1 mmHg for DBP. In multivariable analyses, the SBP and DBP discrepancies between device and observer were unrelated to age, sex, wrist circumference, and blood pressure level.
  
  
  CONCLUSIONS
  These data show that the Microlife BP W200-1 wrist monitor satisfies the recommended European Society of Hypertension accuracy levels for SBP and DBP and therefore can be recommended for clinical use in the adult population. Its performance is uniform across subgroups of patients with different clinical characteristics.
authors.affiliation: Department of Clinical and Experimental Medicine, University of Padova, Padua, Italy. palatini@unipd.it
authors.forename: Paolo
authors.initials: P
authors.lastname: Palatini
authors.forename: Francesca
authors.initials: F
authors.lastname: Dorigatti
authors.forename: Elisa
authors.initials: E
authors.lastname: Bonso
authors.forename: Fabio
authors.initials: F
authors.lastname: Ragazzo
mesh_terms: D000328:Adult; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012648:Self Care / Q000295:instrumentation*