Table 6.
Percentage of normal or abnormal FVC of never smokers calculated using NHANES III versus ethnicity-specific equations
| Korean (n = 183) | All migrants (n = 88) | East Asian (n = 5) | Southeast Asian (n = 63) | Central Asian (n = 8) | South Asian (n = 12) | ||
|---|---|---|---|---|---|---|---|
| NHANES III | Normal (%) | 163 (89.07) | 57 (64.77) | 5 (100) | 42 (66.67) | 8 (100) | 2 (16.67) |
| Abnormal (%) | 20 (10.93) | 31 (35.23) | 0 (0) | 21 (33.33) | 0 (0) | 10 (83.33) | |
| Ethnicity-specific | Normal (%) | 177 (96.72) | 84 (95.45) | 5 (100) | 63 (100) | 8 (100) | 8 (66.67) |
| Abnormal (%) | 6 (3.28) | 4 (4.55) | 0 (0) | 0 (0) | 0 (0) | 4 (33.33) | |
| Kappa | 0.4329 | 0.1593 | –† | –† | –† | 0.1818 | |
| p value | 0.0002 | <0.0001 | 0.0143 |
†Kappa not available
FVC; Forced vital capacity, NHANES; National Health and Nutrition Examination Survey.