Table 3 Quartiles of time-specific BP-3 urinary concentrations and blood glucose levels during pregnancy among 217 women in the EARTH Study
| Quartile (range) of SG-adjusted BP-3 concentration in ng/mL | Population means of blood glucose level in mg/dL (95% CI) across quartiles of SG-adjusted BP-3 concentrations | |
|---|---|---|
| Unadjusted | Adjusteda | |
| Urine samples collected during preconception (mean preconception BP-3 exposure for each participant) (n = 178) | ||
| Q1 (<LOD to 58.7) | 114.0 (106.4, 122.1) | 111.9 (103.0, 121.6) |
| Q2 (58.7 to 153.3) | 113.9 (106.4, 121.9) | 113.7 (103.5, 124.9) |
| Q3 (153.8 to 494.5) | 112.5 (105.1, 120.4) | 107.1 (97.2, 118.0) |
| Q4 (498.9 to 8313.8) | 109.5 (102.2, 117.3) | 108.0 (98.0, 118.9) |
| P-trendb | 0.38 | 0.29 |
| Urine samples collected during first trimester (one sample per participant) (n = 194) | ||
| Q1 (<LOD to 35.2) | 116.4 (108.9, 124.3) | 114.6 (105.8, 124.2) |
| Q2 (39.0 to 124.0) | 112.9 (105.8, 120.5) | 111.9 (102.6, 121.9) |
| Q3 (125.3 to 500.3) | 121.3 (113.7, 129.5) | 118.9 (109.1, 129.4) |
| Q4 (502.6 to 7888.0) | 104.0 (97.4, 111.1)c | 103.4 (95.0, 112.5)c |
| P-trendb | 0.06 | 0.07 |
| Urine samples collected during second trimester (one sample per participant) (n = 170) | ||
| Q1 (<LOD to 36.3) | 115.8 (108.2, 123.9) | 110.0 (100.9, 119.9) |
| Q2 (40.1 to 167.5) | 107.2 (100.2, 114.7) | 105.3 (96.2, 115.2) |
| Q3 (170.7 to 811.8) | 107.7 (100.7, 115.2) | 103.2 (94.4, 112.8) |
| Q4 (855.2 to 17,383.1) | 113.0 (105.5, 120.9) | 104.9 (95.7, 114.9) |
| P-trendb | 0.70 | 0.28 |