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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).
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