Table 3.
Association of urine heavy metal concentrations with blood pressure, BMI, hematology, and blood chemistry in participants.
| U-Pb (μg/L) | U-Hg (μg/L) | U-As (μg/L) | U-Cd (μg/L) | |||||||||
| Variables | No. | R ∗ | P-value | No. | R ∗ | P-value | No. | R ∗ | P-value | No. | R ∗ | P-value |
| BMI | 33 | 0.134 | .457 | 33 | 0.062 | .732 | 33 | 0.318 | .071 | 33 | −0.102 | .572 |
| Blood pressure | ||||||||||||
| SBP | 30 | −0.005 | .979 | 30 | −0.014 | .943 | 30 | 0.052 | .786 | 30 | 0.016 | .933 |
| DBP | 30 | −0.047 | .805 | 30 | −0.090 | .636 | 30 | −0.016 | .932 | 30 | −0.065 | .734 |
| Blood chemistry | ||||||||||||
| HbA1c | 26 | −0.322 | .109 | 26 | −0.285 | .158 | 26 | 0.015 | .943 | 26 | −0.543 | .004 |
| FBG | 31 | −0.081 | .665 | 31 | −0.065 | .728 | 31 | 0.286 | .119 | 31 | −0.289 | .115 |
| TG | 32 | −0.170 | .352 | 32 | 0.186 | .307 | 32 | −0.155 | .396 | 32 | 0.026 | .888 |
| T-CHO | 33 | 0.066 | .714 | 33 | −0.008 | .963 | 33 | 0.118 | .512 | 33 | 0.148 | .411 |
| HDL-C | 33 | 0.091 | .615 | 33 | 0.167 | .354 | 33 | −0.130 | .471 | 33 | 0.330 | .060 |
| LDL-C | 33 | 0.167 | .354 | 33 | −0.238 | .182 | 33 | 0.187 | .298 | 33 | −0.128 | .479 |
| BUN | 33 | −0.113 | .530 | 33 | 0.108 | .550 | 33 | 0.112 | .534 | 33 | 0.220 | .219 |
| Crea | 33 | 0.157 | .383 | 33 | 0.339 | .054 | 33 | −0.012 | .947 | 33 | 0.076 | .685 |
| Na | 33 | −0.305 | .084 | 33 | −0.321 | .068 | 33 | 0.056 | .757 | 33 | −0.125 | .490 |
| K | 33 | −0.133 | .461 | 33 | −0.112 | .535 | 33 | −0.072 | .692 | 33 | −0.048 | .793 |
| GOT | 30 | 0.185 | .329 | 30 | 0.344 | .062 | 30 | 0.094 | .621 | 30 | 0.328 | .077 |
| GPT | 33 | −0.170 | .345 | 33 | −0.059 | .745 | 33 | −0.040 | .824 | 33 | −0.135 | .453 |
| CRP | 30 | 0.278 | .137 | 30 | 0.433 | .017 | 30 | −0.061 | .747 | 30 | 0.356 | .053 |
| UA | 30 | 0.287 | .124 | 30 | 0.091 | .631 | 30 | 0.004 | .981 | 30 | 0.049 | .797 |
| ESR | 33 | 0.131 | .469 | 33 | 0.195 | .277 | 33 | 0.029 | .872 | 33 | 0.277 | .119 |
| Hematology | ||||||||||||
| WBC | 33 | 0.020 | .912 | 33 | −0.093 | .608 | 33 | −0.187 | .298 | 33 | −0.213 | .234 |
| RBC | 33 | 0.024 | .895 | 33 | −0.137 | .447 | 33 | −0.184 | .305 | 33 | −0.287 | .105 |
| HGB | 33 | 0.360 | .039 | 33 | 0.022 | .901 | 33 | 0.031 | .863 | 33 | −0.031 | .865 |
| HCT | 33 | 0.330 | .061 | 33 | 0.016 | .930 | 33 | 0.031 | .864 | 33 | −0.035 | .845 |
| PLT | 33 | −0.023 | .899 | 33 | −0.380 | .029 | 33 | −0.194 | .281 | 33 | −0.325 | .065 |
BMI = body mass index, BUN = blood urea nitrogen, Crea = serum creatinine, CRP = C-reactive protein, DBP = diastolic blood pressure, ESR = erythrocyte sedimentation rate, FBG = fasting blood sugar, TG = triglyceride, GOT = glutamic oxaloacetic transaminase, GPT = glutamic pyruvic transaminase, HbA1c = glycosylated hemoglobin, HCT = hematocrit, HDL-C = high-density lipoprotein cholesterol, HGB = hemoglobin, LDL-C = low-density lipoprotein cholesterol, PLT = platelets, RBC = red blood cells, S-As = serum arsenic, SBP = systolic blood pressure, S-Cd = serum cadmium, S-Hg = serum mercury, S-Pb = serum lead, T-CHO = cholesterol, UA = uric acid, WBC = white blood cells.
r, correlation coefficients and P-values were estimated using Spearman correlation coefficient.
The significance of bold values is a P-value of <.05.