title: The Health and Life device (HL888HA): accuracy assessment in an adult population according to the British Hypertension Society protocol.
abstract: OBJECTIVE
  Over the last two decades, concerns over mercury toxicity have given rise to the continuous release of new and improved automated blood pressure measurement devices as a replacement for the mercury sphygmomanometer. Out-of-office blood pressure monitoring has been shown to have various advantages, including a reduced white-coat effect and observer error, as well as better prediction of cardiovascular risk/complications. We assessed the accuracy of the Health and Life device (HL888HA) (Health and Life Co. Ltd., Taipei, Taiwan) in an adult population according to the British Hypertension Society protocol.
  
  
  METHODS
  Local ethics committee approval was obtained and participants were recruited from a large teaching hospital. Nine blood pressure measurements were taken from each participant, alternating between a mercury sphygmomanometer and the test device. Data from 85 participants who fulfilled the British Hypertension Society criteria were analysed according to the protocol guidelines.
  
  
  RESULTS
  The device achieved the highest possible grade (A/A) according to the British Hypertension Society protocol. The mean difference and SD of 0.5 (7.3) mmHg for systolic and -2.1 (7.8) mmHg for diastolic pressure, which complies with the standard of the American Association for the Advancement of Medical Instrumentation.
  
  
  CONCLUSIONS
  The Health and Life device (HL888HA) can be recommended for use in an adult population according to the criteria of the British Hypertension Society protocol.
authors.affiliation: Maternal and Fetal Research Unit, King's College London School of Medicine, St. Thomas' Hospital, Lambeth Palace Road, London, UK.
authors.forename: Annemarie
authors.initials: A
authors.lastname: de Greeff
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Shennan
mesh_terms: D000328:Adult; D000368:Aged; D018660:Blood Pressure Monitoring, Ambulatory / Q000295:instrumentation* / Q000592:standards*; D006801:Humans; D006973:Hypertension / Q000175:diagnosis*; D008875:Middle Aged; D015203:Reproducibility of Results; D012955:Societies, Medical; D019722:Sphygmomanometers; D006113:United Kingdom