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Table 1 Description of data elements available in PFT data mart

From: Text data extraction for a prospective, research-focused data mart: implementation and validation

   Measures
Parsed Numeric Columns Spirometry (measures the airflow in and out of the lungs) 54
  Lung volumes (assess the volume of air associated with different phases of the breath) 26
  Diffusing Capacity for Carbon Monoxide (measures the ease with which a test gas (carbon monoxide) crosses the air sac membrane into the blood stream) 12
  Pulse Oximetry (assesses the oxygenation of hemoglobin) 2
  Anthropometric (height and weight) 2
Parsed Non-numeric Columns Non-numeric data about patient (race, ethnicity, ordering physician, notes) 6
  Data about measurements (date, technician, etc.) 5
Totals Total number of potential measures parsed into discrete data elements 107
  1. Not all patients undergo all the components of each PFT so the PFT report within the electronic health record may contain fewer measures (Additional file 1: Figure S1).