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Table 3 Odds ratios (95% confidence intervals) for metabolic syndrome components according to whole blood metals distribution

From: Association of whole blood copper, magnesium and zinc levels with metabolic syndrome components in 6–12-year-old rural Chinese children: 2010–2012 China National Nutrition and Health Survey

Index

Cu

Zn

Cu/Zn

Mg

 

T1

T2

T3

P

T1

T2

T3

P

T1

T2

T3

P

T1

T2

T3

P

N = 911

294

315

302

 

300

310

301

 

295

311

305

 

300

310

301

 

Elevated Waist

 n

32

44

70

 

51

50

45

 

37

50

59

 

40

49

57

 

 Crude

1

1.32 (0.82–2.16)

2.47 (1.56–3.89)

0.001

1

0.93 (0.61–1.43)

0.85 (0.55–1.32)

0.789

1

1.33 (0.84–2.11)

1.67 (1.07–2.61)

0.053

1

1.22 (0.77–1.91)

1.51 (0.97–2.35)

0.172

 Adjusted

1

1.23 (0.71–2.12)

2.00 (1.18–3.28)

0.001

1

0.78 (0.48–1.28)

0.62 (0.37–1.04)

0.194

1

1.32 (0.77–2.28)

2.08 (1.22–3.55)

0.019

1

1.21 (0.71–2.04)

1.58 (0.95–2.62)

0.200

Hypertension

 n

9

7

13

 

7

8

14

 

14

10

5

 

9

9

11

 

 Crude

1

0.72 (0.26–1.95)

1.42 (0.59–3.38)

0.334

1

1.10 (0.39–3.09)

2.04 (0.81–5.13)

0.205

1

0.66 (0.29–1.52)

0.33 (0.12–0.94)

0.096

1

0.96 (0.37–2.47)

1.22 (0.50–3.00)

0.849

 Adjusted

1

0.94 (0.33–2.64)

1.95 (0.79–4.82)

0.175

1

0.91 (0.32–2.60)

1.48 (0.70–2.85)

0.513

1

0.83 (0.35–1.93)

0.58 (0.20–1.69)

0.610

1

0.85 (0.32–2.24)

1.04 (0.42–2.61)

0.909

Elevated TG

 n

34

20

13

 

14

31

22

 

34

21

12

 

13

30

24

 

 Crude

1

0.51 (0.29–0.92)

0.34 (0.17–0.66)

0.002

1

2.27 (1.18–4.35)

1.61 (0.80–3.21)

0.041

1

0.55 (0.31–0.93)

0.31 (0.15–0.62)

0.002

1

2.36 (1.20–4.62)

1.91 (0.95–3.83)

0.036

 Adjusted

1

0.52 (0.28–0.93)

0.33 (0.16–0.65)

0.002

1

2.12 (1.10–4.10)

1.41 (0.70–2.85)

0.066

1

0.57 (0.32–1.02)

0.35 (0.17–0.71)

0.010

1

2.34 (1.19–4.61)

1.81 (0.90–3.66)

0.048

Reduced HDL-C

 n

62

62

75

 

74

66

59

 

53

73

73

 

68

64

67

 

 Crude

1

0.91 (0.61–1.36)

1.23 (0.84–1.81)

0.281

1

0.82 (0.56–1.20)

0.74 (0.51–1.09)

0.310

1

1.40 (0.94–2.08)

1.43 (0.96–2.13)

0.145

1

0.88 (0.60–1.30)

0.97 (0.66–1.43)

0.815

 Adjusted

1

0.90 (0.61–1.35)

1.23 (0.83–1.82)

0.282

1

0.81 (0.55–1.18)

0.72 (0.49–1.07)

0.266

1

1.40 (0.93–2.09)

1.48 (0.98–2.23)

0.132

1

0.88 (0.60–1.31)

0.97 (0.66–1.42)

0.828

Hyperglycemia

 n

25

37

32

 

37

26

31

 

25

33

36

 

31

25

38

 

 Crude

1

1.43 (0.83–2.44)

1.27 (0.73–2.21)

0.414

1

0.65 (0.38–1.10)

0.81 (0.49–1.35)

0.277

1

1.28 (0.74–2.13)

1.44 (0.84–2.47)

0.399

1

0.76 (0.43–1.32)

1.25 (0.75–2.07)

0.180

 Adjusted

1

1.57 (0.91–2.70)

1.36 (0.77–2.39)

0.429

1

0.62 (0.36–1.06)

0.75 (0.45–1.26)

0.212

1

1.40 (0.80–2.44)

1.69 (0.97–2.95)

0.177

1

0.73 (0.41–1.27)

1.22 (0.73–2.03)

0.108

  1. The bold numbers, P value was < 0.05, and the difference was statistically significant
  2. Adjusted = adjusted for age, BMI, sex; Crude = non-adjusted; HDL-C, high density lipoprotein-cholesterol; P, P for trend; TG, triglycerides; T, tertile
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Nutrition & Metabolism

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