Test Performance of Electronic Recording Peak Flow Meters

Details

• Personal Author:
  Reynolds SJ ; Stemple, Kimberly J. ; Tift B ; Weisman DN
• Description:
  Electronic recording peak flow meters (EPFM) are increasingly being used for ambulatory monitoring of asthma The EPFM's decrease errors associated with manual entry of time and peak expiratory flow rate (PEFR) data into diaries. However, only limited data documents the performance of these devices in measuring PEFR. Four types of EPFM were evaluated. A computer-controlled piston was used to deliver the 26 flow-time waveforms recommended by the ATS for assessing performance in PEFR measurement. An algorithm accounting for EPFM resistance and gas compression was used to assure accurate delivery of waveforms. For 2 types of EPFM we assessed 10 devices and for the other 2 types we assessed 3 devices. Accuracy, intradevice precision, and interdevice precision were calculated as recommended by the A TS. Correlation between delivered and measured PEFR and coefficient of variation (CV) in measurement at each waveform was also assessed for each type of EPFM. All 4 types of meters met ATS standards for accuracy. Within the limits of numbers of devices studied, all meters met standards for intradevice precision and 2 of the 4 meters met standards for interdevice precision. Delivered and measured PEFR for a114 meters were strongly correlated, with r values ranging between 0.987 and 0.999. CV's over the range of PEFR studied for the various EPFM ranged between 0.2% and 9.5%. The EPFM studied performed well from the standpoint of accuracy in measuring PEFR They were more variable in their precision. However, the tested EPFM have performance characteristics that appear sufficient for ambulatory monitoring PEFR. [Description provided by NIOSH]
• Subjects:
  Electrical Equipment And Supplies Lung Lung Diseases Occupational Health Respiratory Function Tests Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  Electronic-components Electronic-devices Electronic-equipment Monitoring-systems Monitors Pulmonary-disorders Pulmonary-function-tests Respiratory-function-tests
• ISSN:
  1073-449X
• Document Type:
  Text
• Genre:
  Abstract or Summary ; Proceedings
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRDS - Division of Respiratory Disease Studies ; HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  165
• Issue:
  8
• NIOSHTIC Number:
  nn:20022977
• Citation:
  Am J Respir Crit Care Med 2002 Apr; 165(8)(Suppl):A497
• Federal Fiscal Year:
  2002
• NORA Priority Area:
  Disease and Injury: Asthma and Chronic Obstructive Pulmonary Disease
• Peer Reviewed:
  False
• Source Full Name:
  American Journal of Respiratory and Critical Care Medicine, 2002 International Conference, The American Thoracic Society, Atlanta Georgia, May 17-22, 2002
• Supplement:
  Suppl
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9c083558900ba5aa36f84663684f8ca20977f607923bbc26b6aba5e61257782e91591f25ecbce136d0f82637413e4c470bc1f45f6e9190050a49d371f20fcfd1
• Download URL:
  https://stacks.cdc.gov/view/cdc/199577/cdc_199577_DS1.pdf
• File Type:
  [PDF - 187.51 KB ]