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Table 2 Blood cadmium concentrations by gejang (marinated crab) intake frequency and amount (unweighted and weighted)

From: The association between blood cadmium level, frequency and amount of gejang (marinated crab) intake

 

Unweighted

Weighted

Characteristics

Male

Female

Total

Male

Female

Total

 

Numbera

Cdb

Numbera

Cdb

Numbera

Cdb

Numberc

Cdb

Numberc

Cdb

Numberc

Cdb

Frequency

            

 Rarely

514

0.85 ± 0.03

670

1.04 ± 0.02

1184

0.96 ± 0.02

12,548,740

0.84 ± 0.03

14,304,696

1.07 ± 0.03

26,853,437

0.96 ± 0.02

 1/month

72

1.02 ± 0.15

59

1.08 ± 0.08

131

1.05 ± 0.09

1,788,377

1.00 ± 0.12

1,345,577

1.14 ± 0.09

3,133,955

1.06 ± 0.08

 2–3/month

29

0.94 ± 0.08

17

1.12 ± 0.13

46

1.00 ± 0.07

735,207

0.95 ± 0.09

269,466

1.07 ± 0.13

1,004,674

0.98 ± 0.08

 1/week

11

1.06 ± 0.18

4

1.40 ± 0.17

15

1.15 ± 0.14

218,089

1.03 ± 0.16

65,181

1.44 ± 0.15

283,271

1.13 ± 0.14

 2–4/week

-

-

3

1.09 ± 0.11

3

1.09 ± 0.11

-

-

43,525

1.15 ± 0.01

43,525

1.15 ± 0.01

 5–6/week

1

1.82

1

2.26

2

2.04 ± 0.22

13,692

1.82

30,364

2.26

44,056

2.12 ± 0.13

p-value*

 

0.217

 

0.340

 

0.149

 

<0.001

 

<0.001

 

<0.001

Intake per meal

            

 Rarely

514

0.85 ± 0.03

670

1.04 ± 0.02

1184

0.96 ± 0.02

12,548,740

0.84 ± 0.03

14,304,696

1.07 ± 0.03

26,853,437

0.96 ± 0.02

 5 cm3

5

0.61 ± 0.10

6

1.22 ± 0.24

11

0.94 ± 0.16

91,884

0.63 ± 0.10

124,635

1.30 ± 0.18

216,520

1.02 ± 0.17

 15 cm3

36

1.11 ± 0.30

25

1.16 ± 0.12

61

1.13 ± 0.18

914,111

1.04 ± 0.22

514,450

1.30 ± 0.16

1,428,562

1.13 ± 0.15

 50 cm3

72

0.99 ± 0.06

53

1.09 ± 0.07

125

1.03 ± 0.05

1,749,370

0.99 ± 0.07

1,115,030

1.08 ± 0.08

2,864,400

1.02 ± 0.05

p-value*

 

0.099

 

0.689

 

0.212

 

<0.001

 

<0.001

 

<0.001

Intake per month

            

 Rarely

514

0.85 ± 0.03

670

1.04 ± 0.02

1184

0.96 ± 0.02

12,548,740

0.84 ± 0.03

14,304,696

1.07 ± 0.03

26,853,437

0.96 ± 0.02

  ≤ 100 cm3

82

0.99 ± 0.14

66

1.11 ± 0.07

148

1.04 ± 0.08

2,032,772

0.96 ± 0.11

1,446,455

1.15 ± 0.08

3,479,227

1.04 ± 0.07

 101–200 cm3

30

1.04 ± 0.09

16

1.09 ± 0.09

46

1.05 ± 0.07

708,902

1.05 ± 0.08

250,769

1.06 ± 0.11

959,672

1.06 ± 0.06

  > 200 cm3

1

1.82

2

1.71 ± 0.55

3

1.75 ± 0.32

13,692

1.82

56,890

1.75 ± 0.39

70,583

1.76 ± 0.31

p-value*

 

0.137

 

0.384

 

0.088

 

<0.001

 

<0.001

 

<0.001

  1. aNumber of consumers of 6th Korea National Health and Nutritional Examination Survey (KNHANES) per individual category
  2. bBlood cadmium concentrations were expressed as mean ± standard error, unit: μg/L
  3. cEstimated number of the Korean population per individual category
  4. *Calculated by ANCOVA
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Annals of Occupational and Environmental Medicine

ISSN: 2052-4374

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