TABLE 3.
Twelve-Month Agricultural Work History Percent-Time Regression Coefficients by Crop and Task (N = 340)a
| Work history | FEV1 | FEF25–75% | FEV6 | FEV1/FEV6 | ||||
|---|---|---|---|---|---|---|---|---|
| Estimate (SE) | P value | Estimate (SE) | P value | Estimate (SE) | P value | Estimate (SE) | P value | |
| Model 1: Crops | ||||||||
| High TWSRA dust score in past yearb | .13 (.09) | .16 | .08 (.15) | .57 | .22 (.10) | .04 | −.008 (.006) | .14 |
| Months worked in agriculture in past year | .08 (.01) | <.001 | .11 (.03) | <.001 | .11 (.02) | <.001 | −.00003 (.001) | .97 |
| Years worked in agriculture | .006 (.003) | .08 | −.004 (.005) | .42 | .009 (.005) | .05 | -.0005 (.0002) | .03 |
| Model 2: Tasks | ||||||||
| High TWSRA dust score in past yearb | .14 (.09) | .12 | .02 (.16) | .89 | .22 (.10) | .02 | −.008 (.006) | .20 |
| Months worked in agriculture in past year | .08 (.01) | <.001 | .11 (.03) | <.001 | .11 (.02) | <.001 | −.00001 (.001) | .99 |
| Years worked in agriculture | .006 (.003) | .07 | −.005 (.005) | .39 | .009 (.004) | .05 | -.0005 (.0002) | .04 |
a
Adjusted for age, sex, height squared, and current smoking.
b
TWSRA = time-weighted self-reported average.
Bold font indicates statistical significance.