Table 2. Validation of SEA-GLI2012, NEA-GLI2012, Chinese-ECSC1993 and Asian-NHANESIII 0.88.
| Reference | Age | FVC (L) | FEV1 (L) | FEV1/FVC | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ∆ | ∆% | Z-score | LLN% | ∆ | ∆% | Z-score | LLN% | ∆ | ∆% | Z-score | LLN% | ||||
| Males | |||||||||||||||
| The present study | 4–80 | −0.01 | −0.3 | 0.00±1.00 | 5.1 | −0.00 | −0.3 | 0.00±1.00 | 4.8 | 0.00 | 0.3 | −0.00±1.00 | 4.6 | ||
| SEA-GLI2012 | 4–80 | −0.24 | −7.2 | 0.64±1.04 | 1.0 | −0.21 | −7.2 | 0.66±1.00 | 0.6 | −0.00 | −0.0 | 0.07±1.05 | 5.6 | ||
| NEA-GLI2012 | 4–80 | −0.08 | −2.3 | 0.45±1.45 | 7.4 | −0.06 | −1.9 | 0.34±1.36 | 5.7 | 0.01 | 1.1 | −0.12±1.16 | 8.8 | ||
| Chinese-ECSC1993 | 18–70 | −0.31 | −6.8 | 0.54±0.88 | 0.4 | −0.23 | −6.0 | 0.47±0.84 | 0.4 | NA | NA | NA | NA | ||
| Asian-NHANESIII 0.88 | 8–80 | −0.29 | −7.6 | 0.67±1.00 | 0.9 | −0.33 | −10.2 | 0.71±0.80 | 0.1 | NA | NA | NA | NA | ||
| Females | |||||||||||||||
| The present study | 4–80 | −0.01 | −0.4 | 0.00±1.00 | 4.6 | −0.00 | −0.3 | 0.00±1.00 | 4.6 | 0.00 | 0.3 | 0.00±1.00 | 5.2 | ||
| SEA-GLI2012 | 4–80 | −0.26 | −10.0 | 0.85±1.00 | 0.4 | −0.23 | −9.6 | 0.85±0.97 | 0.1 | 0.01 | 0.6 | −0.03±0.97 | 4.6 | ||
| NEA-GLI2012 | 4–80 | −0.00 | −0.1 | 0.10±1.08 | 4.7 | 0.03 | 1.2 | −0.03±0.93 | 3.2 | 0.02 | 1.8 | −0.22±1.07 | 8.9 | ||
| Chinese-ECSC1993 | 18–70 | −0.13 | −3.9 | 0.30±0.97 | 1.4 | −0.24 | −8.8 | 0.69±0.90 | 0.2 | NA | NA | NA | NA | ||
| Asian-NHANESIII 0.88 | 8–80 | −0.22 | −7.3 | 0.62±0.98 | 0.5 | −0.24 | −9.1 | 0.65±0.82 | 0.1 | NA | NA | NA | NA | ||
The predicted values were calculated with age and height from the present sample data. FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second; SEA-GLI2012 and NEA-GLI2012, multi-ethnic Global Lung Initiative 2012 equations for Southeast and Northeast Asian; Chinese-ECSC1993, European Committee of Steel and Coal equations adjusted for Chinese; Asian-NHANESIII 0.88, the third National Health and Nutrition Examination Surveys equations adjusted with 0.88 times for Asian-American; Δ%, percentage differences compared with measured values; LLN%, percentage of individuals whose measure value below lower limit of normal; NA, not available.