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Table 3 Township’s soil heavy metals concentration levels during 1982–1986 in relation to male lung cancer in 2001-2005 a,b

From: Cell-type specificity of lung cancer associated with low-dose soil heavy metal contamination in Taiwan: An ecological study

  Lung AC Lung SCC
Heavy metals concentrations in soils (mg/kg) Case/person year RR 95% CI P-value Case/person year RR 95% CI P-value
As
 >7.70 1,585/ 0.95 0.89-1.02 0.18 1,385/ 1.01 0.94-1.09 0.76
5,260,215 5,260,215
 6.08 - 7.70 1,678/ 0.90 0.84-0.96 <0.01 1,479/ 0.98 0.91-1.06 0.61
6,042,022 6,042,022
 3.18 - 6.08 1,722/ 0.89 0.84-0.96 <0.01 1,443/ 0.92 0.86-1.00 0.04
6,324,337 6,324,337
3.18 1,673/ 1.00 -   1,329/ 1.00 -  
5,272,515 5,272,515
P for trend     0.20     0.42
Cd
 >0.15 1,639/ 1.05 0.97-1.14 0.26 1,463/ 1.08 0.99-1.18 0.08
5,515,399 5,515,399
 0.08 - 0.15 2,259/ 1.03 0.96-1.11 0.37 1,756/ 0.91 0.84-0.99 0.02
7,725,756     7,725,756    
 0.03 - 0.08 1,552/ 0.97 0.9-1.04 0.36 1,380/ 0.97 0.90-1.06 0.53
5,602,900 5,602,900
0.03 1,208/ 1.00 -   1,037/ 1.00 -  
4,055,034 4,055,034
P for trend     0.09     0.31
Cr
 >1.23 1,838/ 1.02 0.94-1.10 0.66 1,780/ 1.49 1.37-1.61 <0.01
6,254,696 6,254,696
 0.27 - 1.23 1,667/ 0.92 0.86-0.99 0.02 1,351/ 1.00 0.93-1.09 0.95
6,021,144 6,021,144
 0.01 - 0.27 1,373/ 0.90 0.84-0.97 0.01 1,183/ 1.04 0.96-1.13 0.34
4,809,582 4,809,582
0.01 1,780/ 1.00 -   1,322/ 1.00 -  
5,813,668 5,813,668
P for trend     0.76     <0.01
Cu
 >9.67 2,449/ 1.18 1.09-1.29 <0.01 1,926/ 1.16 1.06-1.28 <0.01
8,119,166 8,119,166
 5.98 - 9.67 1,572/ 1.10 1.02-1.19 0.02 1,397/ 1.19 1.09-1.30 <0.01
5,582,934 5,582,934
 3.76 - 5.98 1,432/ 1.09 1.01-1.18 0.03 1,243/ 1.10 1.01-1.20 0.03
4,850,009 4,850,009
3.76 1,205/ 1.00 -   1,070/ 1.00 -  
4,346,981 4,346,981
P for trend     <0.01     <0.01
Hg
 >0.23 2,034/ 1.04 0.97-1.13 0.28 1,699/ 1.18 1.08-1.29 <0.01
7,226,678 7,226,678
 0.15 - 0.23 1,880/ 1.05 0.98-1.13 0.18 1,684/ 1.27 1.17-1.38 <0.01
6,214,687     6,214,687    
 0.09 - 0.15 1,599/ 1.01 0.93-1.08 0.89 1,417/ 1.22 1.12-1.32 <0.01
5,539,629 5,539,629
0.09 1,145/ 1.00 -   836/ 1.00 -  
3,918,096 3,918,096
P for trend     0.16     <0.01
Ni
 >3.31 1,745/ 1.09 1.01-1.18 0.04 1,617/ 1.25 1.15-1.36 <0.01
6,010,486 6,010,486
 2.10 - 3.31 1,703/ 1.04 0.97-1.11 0.31 1,357/ 1.00 0.93-1.08 0.97
5,818,529 5,818,529
 1.23 - 2.10 1,689/ 0.95 0.89-1.02 0.14 1,365/ 0.90 0.83-0.97 0.01
5,870,834
5,870,834
1.23 1,521/ 1.00 -   1,297/ 1.00 -  
5,199,240 5,199,240
P for trend     <0.01     <0.01
Pb
 >11.04 2,314/ 1.03 0.96-1.11 0.41 1,854/ 1.06 0.97-1.15 0.19
7,943,003 7,943,003
 8.08 - 11.04 1,597/ 1.01 0.94-1.09 0.79 1,465/ 1.15 1.06-1.25 <0.01
5,657,247 5,657,247
 6.25 - 8.08 1,467/ 1.05 0.97-1.14 0.19 1,290/ 1.17 1.07-1.27 <0.01
4,827,411 4,827,411
6.25 1,280/ 1.00 -   1,027/ 1.00 -  
4,471,428 4,471,428
P for trend     0.70     0.58
Zn
 >14.02 2,589/ 1.09 1.00-1.19 0.05 2,122/ 1.18 1.07-1.29 <0.01
8,798,016 8,798,016
 10.15 - 14.02 1,781/ 1.02 0.94-1.11 0.57 1,570/ 1.16 1.06-1.27 <0.01
6,351,742 6,351,742
 7.36 - 10.15 1,347/ 1.06 0.97-1.15 0.20 1,152/ 1.12 1.02-1.22 0.02
4,519,372 4,519,372
7.36 941/ 1.00 -   792/ 1.00 -  
3,229,960 3,229,960
P for trend     0.08     <0.01
  1. a AS, arsenic; Cd, cadmium; Cr, chromium; Cu, copper; Hg, mercury; Ni, nickel; Pb, lead; Zn, zinc.
  2. bAdjusted for age, each metals concentration in soil (e.g., As, Cd, Cr, Cu, Pb, Mg, Ni, and Zn).