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Table 3 Concordance of spirometry results in the Korean equations

From: Discordance in Spirometric Interpretations Based on Korean and Non-Korean Reference Equations

Severity Age Choi Lee Agreement of Lee with Choi Kappa
Obstructive      
 mild† 40-49 18 (7.8) 18 (7.8) 18 (100) 1.000*
 moderate   3 (1.3) 3 (1.3) 3 (100)  
 mild ≥ 50 48 (16.3) 50 (17.0) 48 (100) 0.985*
 moderate   39 (13.3) 37 (12.6) 37 (94.9)  
 mild Total 66 (8.7) 68 (12.6) 66 (100) 0.989*
 moderate   42 (5.9) 40 (7.4) 40 (95.2)  
Restrictive 40-49 10 (4.3) 3 (1.3) 3 (30.0) 0.451*
  ≥ 50 22 (7.5) 13 (4.4) 13 (59.1) 0.728*
  Total 32 (4.8) 16 (3.0) 16 (50.0) 0.653*
  1. Unit: No. of persons (%).
  2. * p<0.01.
  3. † Mild obstructive: FEV1/FVC (%) < 70 and FEV1% ≥ 80.
  4. Moderate obstructive: FEV1/FVC (%) < 70 and FEV1% < 80.
  5. Restrictive: FVC% < 80.