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Table 2 Mean ± standard deviation (SD) for absolute and relative spirometry measurements from eight untreated horses at rest (eupnoea) and during rebreathing over three consecutive days

From: Reliability of breath by breath spirometry and relative flow-time indices for pulmonary function testing in horses

  1. Each parameter was determined by analysis of three breaths on each testing day, and within day coefficients of variation (CV) were calculated across this data as a measure of repeatability (within day variation). Mean values (± SD) reported below, between day CV (reproducibility), and intraclass correlation coefficients (ICC, reported with 90% confidence interval), were determined by analysis of pooled data (mean of three breaths) collected on each day of testing. Ghosted (grey) results for ICC indicate poor or moderate agreement
  2. Abbreviations: Rf respiratory frequency, bpm breaths per minute, Vt tidal volume, L litres, Tt total breath period, msec milliseconds, Ti inspiratory period, Te expiratory period, PIF peak inspiratory flow, PEF peak expiratory flow, L/sec litres per second, MVe minute ventilation, Tpif time to PIF, Tpef time to PEF
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BMC Veterinary Research

ISSN: 1746-6148

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