Table 2.
Oil spill experiences and lung function among oil spill response and cleanup workers with quality spirometry ≥ D*
| Complete case (N=4,806) |
Imputed (N=6,811) |
||
|---|---|---|---|
| N(%) | Mean Difference (95% CI)† |
Mean Difference (95% CI)† |
|
| Smelled oil, dispersants, or cleaning chemicals | |||
| FEV1(mL) | 2792 (58) | 31 (−3, 64) | 17 (−13, 46) |
| FVC(mL) | 30 (−9, 69) | 25 (−8, 59) | |
| FEV1/FVC% | 0.22 (−0.17, 0.62) | −0.009 (−0.36, 0.34) | |
| Skin or clothing in contact with oil/tar/oily water | |||
| FEV1(mL) | 3111 (65) | −23 (−58, 12) | −17 (−48, 13) |
| FVC(mL) | −18 (−59, 23) | −4 (−40, 31) | |
| FEV1/FVC% | −0.13 (−0.55, 0.28) | −0.22 (−0.59, 0.14) | |
| Body or clothing ever became wet with chemicals | |||
| FEV1(mL) | 1643 (34) | 17 (−18, 52) | 26 (−5, 56) |
| FVC(mL) | 4 (−37, 44) | 21 (−15, 56) | |
| FEV1/FVC% | 0.39 (−0.02, 0.79) | 0.27 (−0.09, 0.63) | |
| Ever had to stop working because you were hot | |||
| FEV1(mL) | 2029 (42) | −16 (−49, 18) | −14 (−43, 15) |
| FVC(mL) | −23 (−62, 16) | −17 (−51, 17) | |
| FEV1/FVC% | 0.14 (−0.25, 0.54) | 0.08 (−0.27, 0.42) | |
| Jobs that involved oily plants/wildlife or dead animal recovery | |||
| FEV1(mL) | 1974 (41) | −70 (−105, −34) | −53 (−84, −22) |
| FVC(mL) | −56 (−97, −15) | −45 (−81, −9) | |
| FEV1/FVC% | −0.60 (−1.02, −0.19) | −0.44 (−0.80, −0.07) | |
| Worked as a commercial fisherman full-time, part-time or seasonally | |||
| FEV1(mL) | 810 (17) | 28 (−19, 75) | 20 (−20, 60) |
| FVC(mL) | 34 (−21, 89) | 25 (−22, 72) | |
| FEV1/FVC% | 0.15 (−0.40, 0.71) | 0.02 (−0.46, 0.49) | |
Abbreviations: CI, confidence interval; N(%), number of participants exposed in the complete case sample; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity, mL, milliliters.
Quality ≥ D is defined having at least two acceptable curves that meet the 2005 American Thoracic Society/European Respiratory society intermaneuver criteria,
Adjusted for: Maximum ordinal total hydrocarbon exposure levels, potential exposure to burning oil/gas, potential dispersant exposure, age, height, height2, weight, gender, ethnicity, race, pre-spill diabetes, pre-spill lung disease, income, education, employment at time of enrollment, previous oil industry experience, previous oil spill cleanup work, residential proximity to coast, smoking, secondhand smoke.