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Table 3 Unadjusted geometric means of the arsenic species concentration in residents living near abandoned metal mines

From: Urinary arsenic species concentration in residents living near abandoned metal mines in South Korea

Characteristics Number Organic As (μg/L) Inorganic As (μg/L) Urinary Arsenic (μg/L)
DMA MMA As3+ As5+
Total 119 116.11(102.03–132.13) 2.08(1.41–3.08) 0.30(0.20–0.47) 0.37(0.24–0.56) 131.98(116.72–149.23)
Gender Male 54 100.55(83.55–121.02) 2.37(1.32–4.25) 0.36(0.19–0.69) 0.45(0.24–0.84) 118.42(100.40–139.68)
Female 65 130.85(109.42-156.47) 1.87(1.09–3.20) 0.27(0.15–0.47) 0.31(0.18–0.55) 144.42(120.72–172.76)
p-value   0.044 0.550 0.486 0.396 0.112
Age(yr) 41-59 13 95.17(61.56–147.12) 3.23(0.74–14.03) 0.54(0.11–2.73) 0.89(0.21–3.78) 116.28(76.34–177.12)
60-69 37 102.00(80.18–129.78) 2.19(1.01–4.75) 0.46(0.19–1.08) 0.54(0.24–1.20) 121.18(98.10–149.67)
≥70 69 129.21(109.33–152.70) 1.86(1.14–3.04) 0.22(0.13–0.37) 0.25(0.15–0.43) 141.50(119.71–167.26)
p-value   0.150 0.694 0.202 0.088 0.415
Period of residence ≤40 35 104.43(83.68–130.32) 0.93(0.41–2.11) 0.26(0.12–0.56) 0.34(0.16–0.70) 117.03(94.82–144.43)
41-60 37 139.65(111.45–174.99) 2.39(1.16–4.95) 0.25(0.11–0.56) 0.46(0.19–1.11) 156.52(123.50–198.37)
≥61 46 107.73(85.53–135.70) 3.40(1.97–5.87) 0.41(0.20–0.85) 0.34(0.18–0.64) 125.50(102.29–153.98)
p-value   0.154 0.025 0.581 0.781 0.159
Smoking Current-smoker 14 79.08(44.38–140.91) 1.68(0.52–5.41) 0.20(0.06–0.65) 0.33(0.11–1.04) 97.16(64.31–146.79)
Ex-smoker 22 118.72(94.31–149.46) 2.08(0.79–5.47) 0.33(0.11–0.99) 0.32(0.11–0.89) 133.37(103.50–171.87)
Non-smoker 83 123.15(105.98–143.10) 2.16(1.34–3.48) 0.32(0.19–0.54) 0.39(0.23–0.65) 138.59(119.22–161.12)
p-value   0.096 0.923 0.787 0.928 0.192
Alcohol Drinking 64 102.89(85.73-123.48) 2.37(1.38-4.07) 0.34(0.19-0.60) 0.50(0.28-0.91) 121.14(103.12-142.31)
Non-drinking 55 133.65(111.54-160.14) 1.79(1.00-3.20) 0.27(0.14-0.52) 0.26(0.14-0.45) 145.82(120.53-176.42)
p-value   0.045 0.478 0.602 0.108 0.137
Income(KRW) Below 500,000 63 116.52(96.59–140.55) 2.07(1.21–3.53) 0.28(0.16–0.50) 0.38(0.21–0.69) 131.29(109.08–158.02)
500,000-1,000,000 20 106.50(71.20–159.29) 4.28(1.52–12.06) 0.58(0.17–2.00) 0.81(0.26–2.48) 131.59(95.09–182.10)
1,000,000-2,000,000 36 121.07(100.01–146.55) 1.40(0.68–2.90) 0.25(0.11–0.54) 0.23(0.12–0.44) 133.42(110.09–161.70)
p-value   0.813 0.180 0.389 0.137 0.993
Mine working history Yes 17 124.94(92.57–168.63) 3.29(1.29–8.38) 0.32(0.09–1.10) 0.32(0.10–1.02) 139.92(105.61–185.38)
No 101 116.66(101.27–134.38) 1.98(1.28–3.06) 0.31(0.19–0.49) 0.38(0.24–0.60) 133.09(116.44–152.11)
p-value   0.709 0.370 0.928 0.792 0.773
Dietary water Tap water 30 118.61(96.99–145.05) 1.72(0.72–4.10) 0.27(0.11–0.68) 0.55(0.22–1.37) 134.40(108.52–166.46)
Underground water 64 112.52(91.42–138.48) 2.56(1.44–4.56) 0.56(0.30–1.05) 0.55(0.30–1.00) 133.40(110.23–161.45)
p-value   0.713 0.438 0.203 0.996 0.962
Herbicide Yes 73 111.02(93.53–131.78) 2.22(1.30–3.78) 0.34(0.19–0.61) 0.52(0.30–-0.93) 128.19(108.42–151.56)
No 31 119.48(89.07–160.27) 1.70(0.75–3.81) 0.46(0.19–1.13) 0.33(0.15–0.72) 137.37(105.42–179.00)
p-value   0.651 0.583 0.561 0.359 0.655
  1. Urinary arsenic: summation of As3+, As5+, MMA, and DMA
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