Table 2 Differential distribution of patients with normal spirometry and obstruction using the race-specific 2012-GLI and race-neutral 2022 GLI reference equations.

From: Race-neutral versus race-specific GLI reference equations on spirometry interpretation in the general population

 

Race-specific 2012-GLI reference equations

Normal

Obstructive

Race-neutral 2012-GLI reference equations

Normal

8745 (89.4%)

289 (3.0%)

Obstructive

0 (0%)

749 (7.7%)

  1. Obstruction is defined as an FEV1/FVC ratio below the lower limit of normal.
  2. GLI, Global Lung Function Initiative.