Table 2.
Baseline demographics according to urinary phthalate summary variables (N = 344).
| N | Σ DEHP | Σ DBP | Σ Plastic | Σ AA | Σ PCP | |
|---|---|---|---|---|---|---|
| Mean (SD) (ng/mL) | Mean (SD) (ng/mL) | Mean (SD) (ng/mL) | Mean (SD) (ng/mL) | Mean (SD) (ng/mL) | ||
|
| ||||||
| Sex | ||||||
| Male | 169 | 211.5 (777.9) | 229.2 (390.0) | 156.8 (550.2) | 403.2 (752.4) | 500.7 (901.9) |
| Female | 175 | 121.2 (145.2) | 177.5 (154.7) | 93.3 (105.1) | 279.8 (235.5) | 444.7 (885.0) |
| P | 0.53 | 0.71 | 0.55 | 0.56 | 0.72 | |
| Age group, (years) | ||||||
| 10–12 | 146 | 152.8 (295.2) | 191.3 (205.5) | 115.0 (209.3) | 318.4 (324.9) | 422.9 (656.9) |
| 13–15 | 139 | 163.8 (719.0) | 184.5 (190.9) | 123.3 (508.3) | 321.1 (618.8) | 484.8 (944.6) |
| 16–17 | 59 | 201.3 (615.1) | 274.7 (563.7) | 151.0 (436.8) | 440.5 (801.0) | 564.4 (1222.12) |
| P | 0.67 | 0.61 | 0.67 | 0.88 | 0.98 | |
| SES | ||||||
| Lower | 174 | 195.9 (692.8) | 169.3 (153.8) | 145.3 (489.9) | 330.8 (595.8) | 428.0 (917.0) |
| Middle/Higher | 170 | 134.5 (366.3) | 237.2 (388.2) | 103.3 (260.3) | 350.3 (513.8) | 517.4 (867.1) |
| P | 0.21 | 0.04 | 0.38 | 0.31 | 0.01 | |
| Pubertal status | ||||||
| Transitioning | 306 | 158.6 (528.8) | 206.3 (308.3) | 119.5 (374.0) | 338.2 (537.5) | 489.0 (937.5) |
| Mature | 38 | 221.7 (746.3) | 175.2 (158.4) | 164.7 (529.8) | 358.5 (696.6) | 336.8 (344.1) |
| P | 0.46 | 0.58 | 0.53 | 0.48 | 0.78 | |
| Smoking behavior | ||||||
| Ever Smoker | 51 | 123.9 (106.0) | 191.8 (129.8) | 97.5 (81.1) | 297.7 (191.8) | 490.4 (660.3) |
| Never Smoker | 293 | 172.8 (600.7) | 204.8 (315.7) | 129.2 (425.0) | 347.9 (597.1) | 469.0 (927.9) |
| P | 0.39 | 0.13 | 0.41 | 0.22 | 0.29 | |
| Alcohol intake | ||||||
| Consumed drink in past year | 243 | 131.5 (317.6) | 185.1 (177.3) | 100.3 (226.1) | 295.4 (353.9) | 489.0 (971.8) |
| Did not consume drink in past year | 101 | 247.4 (898.1) | 245.7 (469.9) | 182.8 (634.6) | 448.7 (860.7) | 431.7 (666.7) |
| P | 0.30 | 0.78 | 0.26 | 0.37 | 0.47 | |
| MVPA tertiles, (h/wk) | ||||||
| 15.5–66.4 | 103 | 202.4 (839.5) | 224.1 (445.1) | 151.0 (593.3) | 391.3 (812.0) | 605.3 (1362.3) |
| 66.5–90.4 | 117 | 202.5 (529.6) | 177.6 (145.8) | 150.8 (375.7) | 345.4 (501.7) | 411.3 (637.4) |
| 90.6–216.3 | 124 | 100.2 (79.7) | 209.1 (241.2) | 77.7 (59.0) | 293.5 (271.6) | 419.1 (598.3) |
| P | 0.44 | 0.92 | 0.39 | 0.69 | 0.91 | |
| Screen time tertiles, (h/wk) | ||||||
| 0.5–14.0 | 111 | 234.3 (865.1) | 209.4 (427.9) | 172.4 (611.4) | 400.9 (862.90 | 351.9 (458.4) |
| 14.5–21.0 | 121 | 119.9 (110.0) | 205.1 (229.6) | 93.3 (81.5) | 307.3 (266.7) | 451.9 (675.9) |
| 21.5–72.0 | 112 | 146.8 (439.5) | 194.0 (176.8) | 110.7 (312.1) | 316.4 (442.3) | 613.4 (1313.1) |
| P | 0.27 | 0.29 | 0.31 | 0.41 | 0.23 | |
ABBR: Σ DBP: molar sum of dibutyl phthalate metabolites; Σ DEHP: molar sum of di-2-ethylhexyl phthalate metabolites; Σ Plastic: molar sum of phthalate metabolites from plastic sources.
Σ AA: molar sum of anti-androgenic phthalate metabolites; Σ PCP: molar sum of personal care product phthalate metabolites; h/wk: hours per week; N = sample size; MVPA: moderate-vigorous; physical activity; SES: socioeconomic status; SE: standard deviation.