Table 3 Relationship between food intake and blood lead levels ≥20 μg/L

Rice/wheat

<1 times/day

30

11.0

1

≥1 times/day

243

89.0

1.039

0.479–2.253

0.924

Potato

≤2 times/week

187

68.5

1

>2 times/week

86

31.5

0.792

0.471–1.332

0.380

Vegetables

<1 times/day

103

37.7

1

≥1 times/day

170

62.3

0.856

0.517–1.416

0.545

Fruit

<1 times/day

56

20.5

1

≥1 times/day

217

79.5

0.615

0.327–1.155

0.131

Poultry

≤2 times/week

98

35.9

1

>2 times/week

175

64.1

0.973

0.586–1.615

0.916

Seafood

≤2 times/week

222

81.3

1

>2 times/week

51

18.7

0.818

0.441–1.515

0.523

Dairy

<1 times/day

109

39.9

1

≥1 times/day

164

60.1

0.895

0.544–1.472

0.663

Bean products

≤2 times/week

194

71.1

1

>2 times/week

79

28.9

1.581

0.910–2.750

0.104

Eggs

<1 times/day

178

65.2

1

≥1 times/day

95

34.8

1.610

0.953–2.722

0.075

Nuts

≤2 times/week

183

67.0

1

>2 times/week

90

33.0

1.259

0.388

Whole grains

<1 times/week

97

35.5

1

≥1 times/week

176

64.5

0.999

0.996

Animal liver

never

97

35.5

1

≥1 times/month

176

64.5

1.304

0.303

Puffed food

<1 times/week

152

55.7

1

≥1 times/week

121

44.3

1.816

0.019

Pickles

never

139

50.9

1

≥1 times/month

134

49.1

0.807

0.388

Fried food

<1 times/week

212

77.7

1

≥1 times/week

61

22.3

0.832

0.534

Carbonate beverages

never

137

50.2

1

≥1 times/month

136

49.8

0.901

0.674

Dessert

<1 times/week

108

39.6

1

≥1 times/week

165

60.4

0.806

0.399