Table 5.
Individual-level socioeconomic status, financial strain, and lung function (n=6,168) (GuLF Study participants 2011–2013)a
| N(%) | FEV1, mL Mean Differences (95% CI) | FVC, mL Mean Differences (95% CI) | FEV1/FVC% Mean Differences (95% CI) | |
|---|---|---|---|---|
| Income | ||||
| ≤$20,000 | 2312(37) | −79(−119,−39) | −45(−92,−2) | −1.25(−1.72,−0.77) |
| $20,001–$50,000 | 2070(34) | −80(−117,−43) | −47(−90,−3) | −1.12(−1.55,−0.68) |
| >$50,000 | 1786(29) | Ref | Ref | Ref |
| P-test for trend | 0.0002 | 0.08 | <.0001 | |
| Education | ||||
| Less than HS/Equivalent | 1145(19) | −78(−131,−27) | −105(−170,−44) | 0.04(−0.58,0.66) |
| High School Diploma/GED | 2081(34) | −85(−130,−39) | −106(−160,−52) | −0.05(−0.59,0.49) |
| Some College/2 Year Degree | 1943(32) | −56(−100,−12) | −68(−120,−16) | −0.01(−0.54,0.51) |
| 4 Year College Graduate or More | 999(16) | Ref | Ref | Ref |
| P-test for trend | 0.0021 | 0.0004 | 0.93 | |
| Worried about paying rent | ||||
| Yes | 2951(48) | −3(−32,26) | 4(-30,39) | −0.13 (−0.47,0.22) |
| No | 3217(52) | Ref | Ref | Ref |
| Worried about buying food | ||||
| Yes | 1777(29) | −10(−41,22) | −12(−49, 25) | −0.02(−0.39,0.36) |
| No | 4391(71) | Ref | Ref | Ref |
Models adjusted for: age, sex, race, ethnicity, prevalent respiratory disease, height, height2, smoking, secondhand smoke, area deprivation index; each model is additionally mutually adjusted for other individual SES and financial strain variables assessed
HS= High school; GED= General education development degree