Research ArticleOriginal Research

An Evaluation of Peak Expiratory Flow Monitoring: A Comparison of Sitting Versus Standing Measurements

Emily K. McCoy, Jeremy L. Thomas, Rebecca S. Sowell, Christa George, Christopher K. Finch, Elizabeth A. Tolley and Timothy H. Self
The Journal of the American Board of Family Medicine March 2010, 23 (2) 166-170; DOI: https://doi.org/10.3122/jabfm.2010.02.090120

Article Figures & Data

Figures

  • Figure 1.
    Figure 1.

    Sample Asthma Action Plan. (Reprinted with permission from Regional Asthma Management and Prevention [RAMP], a program of the Public Health Institute. The RAMP Asthma Action Plan was supported by Cooperative Agreement Number 1U58DP001016-01 from the Centers for Disease Control and Prevention. The contents of the RAMP Asthma Action Plan are solely the responsibility of the authors and do not necessarily represent the official views of the CDC.4)

  • Figure 2.
    Figure 2.

    Directions for peak flow meter use. (Adapted from National Heart, Blood, and Lung Institute Expert Panel. Report 3: guidelines for the diagnosis and management of asthma. Bethesda, MD: National Institutes of Health; 2007.3)

Tables

  • Table 1.

    Demographics

    Patients (n [%])Age (mean years ± SD)Height (mean inches ± SD)
    Men63 (30)23.6 ± 2.0*71.7 ± 2.4
    Women148 (70)23.5 ± 2.765.1 ± 2.7†
    Total21123.5 ± 2.567.0 ± 4.0

    • * Two male subjects were excluded from age analysis because of no reported age.

    • † One female subject was excluded from height analysis because of no reported height.

  • Table 2.

    Peak Expiratory Flow Measurements (L/min)*

    SittingStandingP
    Men† (n = 63)672 ± 9†684 ± 9†.12
    Women† (n = 148)440 ± 5†443 ± 5†.90
    Asthmatics (n = 29)504 ± 5509 ± 5.39
    Smokers (n = 10)551 ± 6539 ± 6.21

    • * Values provided as mean ± standard error of the mean.

    • † P < .0001.

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