Table 2.
Lung function by maximum ordinal total hydrocarbon exposure levels among Deepwater Horizon disaster response and clean-up workers with 2 acceptable FEV1 and FVC curves (n=6,288)
| Lung function | THc Level (ppm)* | n (%) | Adjusted Mean (SE)* |
|---|---|---|---|
| FEV1, mL | |||
| Level 1 (≤0.29) | 913(14.52) | 3025(24) | |
| Level 2 (0.30–0.99) | 2334(37.12) | 3009(19) | |
| Level 3 (1.0–2.99) | 2113(33.60) | 3047(20) | |
| Level 4 (≥3.00) | 928(14.76) | 2998(24) | |
| FVC, mL | |||
| Level 1 (≤0.29) | 913(14.52) | 3816(28) | |
| Level 2 (0.30–0.99) | 2334(37.12) | 3816(22) | |
| Level 3 (1.00–2.99) | 2113(33.60) | 3852(24) | |
| Level 4 (≥3.00) | 928(14.76) | 3818(29) | |
| FEV1/FVC% | |||
| Level 1 (≤0.29) | 913(14.52) | 79.20(0.28) | |
| Level 2 (0.30–0.99) | 2334(37.12) | 78.90(0.22) | |
| Level 3 (1.00–2.99) | 2113(33.60) | 79.12(0.24) | |
| Level 4 (≥3.00) | 928(14.76) | 78.55(0.29) |
Abbreviations: THc level, maximum ordinal total hydrocarbon exposure level; ppm, parts per million; SE, standard error
*
Adjusted for age, height, height2, gender, race, ethnicity, smoking status