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Table 4 Township’s soil heavy metals concentration levels during 1982–1986 in relation to female 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

1,314/

0.92

0.85-1.00

0.04

243/

1.06

0.87-1.28

0.57

4,959,803

4,959,803

 6.08 - 7.70

1,430/

0.92

0.86-1.00

0.04

217/

0.84

0.70-1.02

0.08

5,752,167

5,752,167

 3.18 - 6.08

1,494/

0.94

0.87-1.01

0.12

209/

0.82

0.68-1.00

0.05

6,139,517

6,139,517

 ≦3.18

1,367/

1.00

-

 

222/

1.00

-

 

5,198,563

5,198,563

 P for trend

   

0.04

   

0.52

Cd

 >0.15

1,443/

1.05

0.96-1.15

0.26

222/

0.84

0.67-1.04

0.11

5,285,544

5,285,544

 0.08 - 0.15

1,829/

1.05

0.97-1.14

0.23

295/

0.93

0.77-1.13

0.45

7,645,830

7,645,830

 0.03 - 0.08

1,332/

1.03

0.95-1.12

0.47

188/

0.75

0.62-0.92

0.01

5,303,029

5,303,029

 ≦0.03

1,001/

1.00

-

 

186/

1.00

-

 

3,815,647

3,815,647

 P for trend

   

0.23

   

0.40

Cr

 >1.23

1,596/

0.97

0.89-1.06

0.50

252/

1.22

0.99-1.52

0.07

6,126,512

6,126,512

 0.27 - 1.23

1,335/

0.92

0.85-0.99

0.03

253/

1.38

1.14-1.68

<0.01

5,749,780

5,749,780

 0.01 - 0.27

1,141/

0.92

0.85-1.00

0.04

187/

1.19

0.97-1.47

0.09

4,440,563

4,440,563

 ≦0.01

1,533/

1.00

-

 

199/

1.00

-

 

5,733,195

5,733,195

 P for trend

   

0.40

   

0.02

Cu

 >9.67

2,145/

1.19

1.09-1.31

<0.01

331/

1.24

0.98-1.57

0.07

8,174,628

8,174,628

 5.98 - 9.67

1,289/

1.06

0.97-1.16

0.17

202/

1.10

0.88-1.37

0.41

5,340,797

5,340,797

 3.76 - 5.98

1,181/

1.09

1.00-1.19

0.06

199/

1.16

0.94-1.44

0.17

4,511,228

4,511,228

 ≦3.76

990/

1.00

-

 

159/

1.00

-

 

4,023,397

4,023,397

 P for trend

   

<0.01

   

0.12

Hg

 >0.23

1,696/

0.91

0.83-0.99

0.02

264/

1.00

0.80-1.24

0.98

7,154,506

7,154,506

 0.15 - 0.23

1,548/

0.92

0.85-1.00

0.04

252/

1.03

0.84-1.27

0.78

6,049,340

   

6,049,340

   

 0.09 - 0.15

1,316/

0.93

0.86-1.01

0.09

224/

1.08

0.88-1.33

0.45

5,151,875

5,151,875

 ≦0.09

1,045/

1.00

-

 

151/

1.00

-

 

3,694,329

3,694,329

 P for trend

   

0.03

   

0.80

Ni

 >3.31

1,532/

1.09

1.00-1.19

0.04

262/

1.29

1.04-1.60

0.02

5,888,186

5,888,186

 2.10 - 3.31

1,401/

1.05

0.97-1.14

0.21

219/

1.07

0.88-1.31

0.48

5,546,267

5,546,267

 1.23 - 2.10

1,523/

1.07

0.99-1.15

0.11

230/

1.01

0.83-1.23

0.90

5,764,114

5,764,114

 ≦1.23

1,149/

1.00

-

 

180/

1.00

-

 

4,851,483

4,851,483

 P for trend

   

0.07

   

0.02

Pb

 >11.04

2,003/

0.99

0.92-1.07

0.80

296/

1.05

0.86-1.29

0.61

7,927,859

7,927,859

 8.08 - 11.04

1,294/

0.94

0.87-1.02

0.15

234/

1.21

0.98-1.49

0.07

5,333,266

5,333,266

 6.25 - 8.08

1,155/

0.93

0.85-1.01

0.07

195/

1.09

0.88-1.35

0.42

4,578,886

4,578,886

 ≦6.25

1,153/

1.00

-

 

166/

1.00

-

 

4,210,039

4,210,039

 P for trend

   

0.84

   

0.58

Zn

 >14.02

2,193/

1.11

1.01-1.22

0.02

347/

1.29

1.03-1.62

0.03

8,807,482

8,807,482

 10.15 - 14.02

1,538/

1.09

0.99-1.19

0.07

243/

1.09

0.87-1.37

0.45

6,137,430

6,137,430

 7.36 - 10.15

1,098/

1.05

0.96-1.15

0.28

178/

1.09

0.86-1.37

0.48

4,196,903

4,196,903

 ≦7.36

776/

1.00

-

 

123/

1.00

-

 

2,908,236

2,908,236

 P for trend

   

0.02

   

0.02

  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).