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Table 3 Blood biomarkers of contaminants and nutrients by tertile of caribou consumption: IPY 2007–2008 Inuit Health Survey (n = 2175)

From: Potential impact of restricted caribou (Rangifer tarandus) consumption on anemia prevalence among Inuit adults in northern Canada

 

Tertiles of caribou intake

Tertile 1

Tertile 2

Tertile 3

Mean

(95% CI)

Mean

(95% CI)

Mean

(95% CI)

Serum vitamin D (nmol/L)

59.4

56.9–62.0

58.6

56.0–61.2

55.6

53.3–57.8

Plasma vitamin B6 (ng/mL)

3.5

2.9–4.0

2.9

2.4–3.4

2.8

2.1–3.5

Total n-3 fatty acids (%)

5.8

5.6–6.1

5.7

5.5–5.9

5.6

5.3–5.8

RBC EPA (%)

1.7

1.6–1.9

1.5

1.4–1.6

1.5*

1.4–1.6

RBC DHA (%)

2.5

2.4–2.6

2.6

2.5–2.7

2.4

2.3–2.5

RBC magnesium (mg/L)

52.0

50.9–53.1

51.3

50.4–52.2

50.8*

49.9–51.7

Blood selenium (μg/L)

331.7

318.3–345.6

306.3

294.3–318.9

314.4*

301.7–327.7

Blood mercury (μg/L)

7.4

6.7–8.2

6.3

5.8–6.8

6.9*

6.3–7.5

Blood lead (μg/L)

34.7

32.7–36.8

32.8

31.1–34.6

38.1

36.0–40.2

Blood cadmium (μg/L)

1.7

1.6–1.8

1.5

1.4–1.6

1.7

1.5–1.8

  1. *Multiple comparisons between tertiles (tertile 1 vs. tertiles 2 and 3, respectively) with Bonferroni correction, adjusting for age, sex and region of residence. P < 0.05
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