Urinary biomarkers | n | Crude model β (95% CI) | P | P for trend | Adjusted modela β (95% CI) | P | P for trend |
---|---|---|---|---|---|---|---|
Thiocyanate (ng/ml) | 4875 | < 0.001 | 0.007 | ||||
Q1 | 1217 | Reference | Reference | ||||
Q2 | 1212 | −5.183 (−37.650, 27.284) | 0.76 | 2.114 (−28.049, 32.276) | 0.89 | ||
Q3 | 1223 | −21.587 (−59.246, 16.072) | 0.27 | −9.407 (−45.380, 26.567) | 0.61 | ||
Q4 | 1223 | − 39.151 (−72.874, −5.429) | 0.03 | −33.240 (−69.913, 3.432) | 0.08 | ||
Thiocyanate levels | −0.005 (−0.008, − 0.003) | 0.0002 | −0.006 (− 0.010, − 0.003) | 0.0004 | |||
Nitrate × 10−3 (ng/mL) | 4875 | 0.02 | 0.66 | ||||
Q1 | 1256 | Reference | Reference | ||||
Q2 | 1260 | −7.260 (−40.930–26.409) | 0.67 | −1.080 (−36.328–34.167) | 0.95 | ||
Q3 | 1257 | 11.929 (−23.801–47.659) | 0.52 | 24.678 (−16.340–65.696) | 0.25 | ||
Q4 | 1266 | −32.880 (−70.037–4.277) | 0.09 | −15.560 (−61.376–30.255) | 0.51 | ||
Nitrate × 10−3 levels | 4875 | −0.000 (−0.000 − 0.000) | 0.19 | –0.000 (−0.00–0.000) | 0.50 | ||
Perchlorate (ng/mL) | 4875 | 0.63 | 0.11 | ||||
Q1 | 1249 | Reference | Reference | ||||
Q2 | 1268 | 8.954 (−25.792–43.700) | 0.62 | 26.810 (−6.710–60.331) | 0.13 | ||
Q3 | 1261 | −19.580 (−49.561–10.401) | 0.21 | 14.088 (−15.435–43.611) | 0.36 | ||
Q4 | 1261 | 15.435 (−22.211–53.081) | 0.42 | 50.567 (14.407–86.726) | 0.009 | ||
Perchlorate levels | 0.038 (−0.585–0.661) | 0.91 | 0.389 (−0.047–0.825) | 0.09 |