TABLE 6.
Change in Percent Predicted Spirometry Parameters for an Interquartile Change in Urinary Phthalate Metabolite Concentrations by Sex and Age, for ΣDEHP*
| Parameter | Change in Percent Predicted | |
|---|---|---|
| Male, age 6–16 (n = 795) | FEV1 | −0.6 (−1.8, 0.6) |
| FVC | −1.3 (−2.5, −0.1) | |
| FEV1/FVC | −0.7 (−1.3, −0.1) | |
| Female, age 6–16 (n = 847) | FEV1 | −0.2 (−1.3, 0.9) |
| FVC | −0.3 (−1.4, 0.8) | |
| FEV1/FVC | −0.0 (0.7, 0.7) | |
| Male, age 17–49 (n = 760) | FEV1 | −1.2 (−2.0,−0.4) |
| FVC | −1.2 (−2.0, −0.4) | |
| FEV1/FVC | −1.2 (−2.1, −0.2) | |
| Female, age 17–49 (n = 745) | FEV1 | −0.1 (−1.6, 1.4) |
| FVC | −0.1 (−1.4, 1.2) | |
| FEV1/FVC | −0.2 (−1.0, 0.6) |
*Results are adjusted for PM2.5, age, sex, smoking status (current, occasional, and nonsmokers), fasting, income, and education. Italicized data show results considered statistically significant if 95% confidence limits do not encompass 0.
DEHP, di(2-ethylhexyl) phthalate; FEV1, 1-second forced expiratory volume; FVC, forced vital capacity.