Table 3.
Binary logistic regression analysis of plasma heavy metals
| OR(95%CI) | ||||
|---|---|---|---|---|
| Variable | n | Total | Male | Female |
| As (µg/L) | ||||
| Q1 (≤ 0.92) | 1 [Reference] | 1 [Reference] | 1 [Reference] | |
| Q2 (0.92–1.20) | 888 | 1.13 (0.89,1.42) | 1.22 (0.81,1.82) | 1.11 (0.82,1.49) |
| Q3 (1.20–1.97) | 886 | 1.13 (0.92,1.39) | 1.20 (0.85,1.71) | 1.12 (0.86,1.46) |
| Q4 ( > 1.97) | 888 | 1.11 (0.91,1.37) | 1.10 (0.78,1.55) | 1.10 (0.85,1.43) |
| P value for trend | 882 | 0.64 | 0.72 | 0.85 |
| Fe (µg/L) | ||||
| Q1 (≤ 821.05) | 886 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Q2 (821.05-1074.72) | 886 | 0.86 (0.69,1.06) | 0.81 (0.56,1.18) | 0.89 (0.68,1.18) |
| Q3 (1074.72-1352.38) | 886 | 0.88 (0.72,1.08) | 0.86 (0.62,1.19) | 0.90 (0.68,1.19) |
| Q4 ( > 1352.38) | 886 | 1.13 (0.92,1.38) | 1.16 (0.86,1.56) | 1.14 (0.86,1.51) |
| P value for trend | 0.03 | 0.23 | 0.20 | |
| Zn (µg/L) | 886 | |||
| Q1 (≤ 764.59) | 886 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Q2 (764.59-1062.05) | 886 | 1.19 (0.92,1.53) | 1.05 (0.68,1.63) | 1.50 (1.08,2.08) |
| Q3 (1062.05-4401.42) | 886 | 1.47 (1.16,1.87) | 1.28 (0.86,1.89) | 1.75 (1.28,2.38) |
| Q4 ( > 4401.42) | 1.30 (1.03,1.63) | 1.36 (0.93,2.00) | 1.40 (1.04,1.89) | |
| P value for trend | 886 | 0.01 | 0.28 | 0.01 |
| Cr (µg/L) | 886 | |||
| Q1 (≤ 1.90) | 886 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Q2 (1.90-3.00) | 886 | 0.79 (0.64,0.98) | 0.75 (0.52,1.08) | 0.83 (0.64,1.08) |
| Q3 (3.00-4.08) | 0.90 (0.73,1.11) | 0.99 (0.70,1.40) | 0.83 (0.63,1.08) | |
| Q4 ( > 4.08) | 886 | 0.85 (0.69,1.06) | 0.71 (0.50,1.00) | 0.97 (0.73,1.28) |
| P value for trend | 886 | 0.18 | 0.09 | 0.35 |
| Sr (µg/L) | 887 | |||
| Q1 (≤ 21.30) | 885 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Q2 (21.30-26.82) | 1.12 (8.91,0.40) | 1.29 (0.89,1.86) | 1.02 (0.76,1.36) | |
| Q3 (26.82–33.35) | 886 | 0.93 (0.75,1.15) | 0.82 (0.58,1.17) | 1.00 (0.76,1.33) |
| Q4 ( > 33.35) | 886 | 0.91 (0.74,1.12) | 0.85 (0.61,1.18) | 0.96 (0.73,1.27) |
| P value for trend | 886 | 0.17 | 0.05 | 0.98 |
| Cd (µg/L) | 886 | |||
| Q1 (≤ 0.13) | 1 [Reference] | 1 [Reference] | 1 [Reference] | |
| Q2 (0.13–0.19) | 886 | 0.96 (0.76,1.21) | 0.98 (0.67,1.45) | 0.93 (0.69,1.27) |
| Q3 (0.19–0.28) | 886 | 1.00 (0.81,1.23) | 0.96 (0.68,1.36) | 1.03 (0.78,1.35) |
| Q4 ( > 0.28) | 886 | 0.82 (0.66,1.00) | 0.73 (0.51,1.03) | 0.90 (0.69,1.18) |
| P value for trend | 886 | 0.18 | 0.27 | 0.73 |
| Pb (µg/L) | ||||
| Q1 (≤ 3.31) | 886 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Q2 (3.31–5.18) | 886 | 0.95 (0.75,1.21) | 0.85 (0.57,1.29) | 0.99 (0.73,1.34) |
| Q3 (5.18–8.64) | 886 | 0.99 (0.80,1.23) | 0.82 (0.58,1.17) | 1.06 (0.80,1.40) |
| Q4 ( > 8.64) | 886 | 0.92 (0.75,1.13) | 0.82 (0.59,1.14) | 1.00 (0.76,1.32) |
| P value for trend | 0.85 | 0.61 | 0.95 | |
Take Q1 as a reference
aAdjusted for sex, age, ethnicity, education, smoking, drinking, BMI, hypertension, hyperglycemia
bStratified by sex, adjusted for age, ethnicity, education, smoking, drinking, BMI, hypertension, hyperglycemia